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NECO Physics Questions and Answers 2023/2024 | Essay and Objective

NECO   Physics Questions and Answers 2023. I will be showing you the NECO Physics objective and theory answers as well as repeated questions for free in this post. You will also understand how NECO Physics questions are set and how to answer them.

The National Examinations Council (NECO) is an examination body in Nigeria that conducts the Senior Secondary Certificate Examination and the General Certificate in Education in June/July and December/January respectively.

Table of Contents

NECO Physics Objectives And Essay Answers 2023 (Expo)

The 2023 NECO Physics expo will be posted here today 27th July during the NECO Physics examination. Keep checking and reloading this page for the answers.

NECO 2023 Physics Answers Loading.. .

NECO Physics OBJ Answers: The Answers will soon be posted here. Be patient we are solving.

1-10: EADCAEBEBC

11-20: ECDDCDBCCB

21-30: CECBEADCBB

31-40: BADDCDCAAA

41-50: EDACDCACAA

51-60: CEBACCBCAC

Essay Answers:

(i) Solar water heaters: These are devices that use solar collectors to absorb energy from the sun and heat water for domestic or industrial use.

(ii) Solar air heaters: These are devices that use solar collectors to absorb energy from the sun and heat air for space heating or ventilation purposes.

Total Magnification = Magnification of Objective Lens × Magnification of Eyepiece Lens.

Total Magnification = 10

Magnification of Objective Lens = 2

Let “E” represent the magnification of the eyepiece lens.

Static friction is a type of friction that exists between two surfaces in contact with each other when they are not moving relative to each other.

Coefficient of static friction (μs) = Force of static friction/ Normal force

Force of static friction = 3N

Normal force = 5N

μs = 3N / 5N = 0.6

The velocity ratio of a machine is the ratio of the distance moved by the effort to the distance moved by the load. It is a measure of the effectiveness of a machine in transmitting force.

Velocity ratio = distance moved by effort / distance moved by load

A second order lever has the load in the middle, with the effort applied on one side and the fulcrum on the other. The effort arm is longer than the load arm, which means the machine has a mechanical advantage. Examples of second order levers include wheelbarrows and nutcrackers WHILE A third order lever has the effort applied on one end, the load on the other end, and the fulcrum in between. The load arm is longer than the effort arm, which means the machine has a mechanical disadvantage. Examples of third order levers include tweezers and shovels.

Q4&5????

– Angle of incidence (θ₁) = 60°

– Speed of light in air = 3×10⁸ m/s

– Speed of light in glass = 2×10⁸ m/s

The refractive index (n) of a medium can be calculated using the formula:

n = speed of light in vacuum / speed of light in the medium

Refractive index of air (n₁):

n₁ = speed of light in vacuum / speed of light in air

n₁ = 3×10⁸ m/s / 3×10⁸ m/s

Refractive index of glass (n₂):

n₂ = speed of light in vacuum / speed of light in glass

n₂ = 3×10⁸ m/s / 2×10⁸ m/s

Using Snell’s law to find the angle of refraction (θ₂):

n₁ × sin(θ₁) = n₂ × sin(θ₂)

1 × sin(60°) = 1.5 × sin(θ₂)

sin(θ₂) = (1 × sin(60°)) / 1.5

sin(θ₂) = sin(60°) / 1.5

θ₂ = arcsin(sin(60°) / 1.5)

θ₂ ≈ arcsin(0.86602540378 / 1.5)

θ₂ ≈ arcsin(0.57735026919)

θ₂ ≈ 35.26°

(i) Electric motors: Electromagnets are used in electric motors to convert electrical energy into mechanical energy. An electric motor contains an armature with a coil of wire that rotates within a magnetic field created by an electromagnet.

(ii) Magnetic resonance imaging (MRI): Electromagnets are used in MRI machines to create a strong magnetic field that aligns the protons in the body’s tissues. Radio waves are then used to create images of the body’s internal structures.

The soft iron bar can be converted to a magnet by placing it in contact with a bar magnet. When the bar magnet is brought close to the soft iron bar, the magnetic domains in the soft iron bar become aligned with the magnetic field of the bar magnet. This causes the soft iron bar to become magnetized and it will now be able to attract other magnetic materials.

Reactance refers to the opposition that an electrical circuit or component exhibits to the flow of alternating current (AC). It is a fundamental concept in understanding AC circuits and is closely related to the concept of impedance.

Xc = 1/(2πfC)

Xc = Capacitive reactance in ohms (Ω)

π = 3.14 (approximate value)

f = Frequency in Hertz (Hz)

C = Capacitance in Farads (F)

Capacitive reactance (Xc) = 3000Ω

Capacitance (C) = 5µF = 5 * 10-⁶F

Rearranging the formula to solve for frequency (f):

f = 1/(2*π* Xc* C)

Substituting the given values:

f = 1/(2 * 3.14 * 3000 * 5 * 10-⁶ )

f = 1/(2 * 3.14 * 3000 * 0.000005)

f = 1/(6.28 * 0.015)

f = 1/0.0942

f=10.62Hz (approx. 2 decimal).

Photoelectrons are electrons that are emitted from a material when it absorbs electromagnetic radiation, typically in the form of photons (light). This phenomenon is known as the photoelectric effect.

Formula for threshold frequency;

F= Frequency

E = Work function(Energy)

h= Plank’s constant (6.6×10-³⁴)

Converting the work function to joules:

Work function (ϕ) = 3.5 eV = 3.5 × 1.6 × 10-¹⁹ J = 5.6 × 10-¹⁹ J

Substituting the values

F= 5.6 × 10-¹⁹/6.6×10-³⁴

F= 8.48×10¹⁴Hz

(i) Radiation exposure: X-rays are a type of ionizing radiation, which means that they can damage the DNA in cells and increase the risk of cancer. Exposure to high doses of X-rays can also cause radiation sickness, which can lead to nausea, vomiting, and hair loss.

(ii) Skin burns: X-rays can cause skin burns if the skin is exposed to a high dose of radiation. The severity of the burn depends on the dose of radiation and the duration of exposure.

(i) Soft X-rays have lower energy levels, while hard X-rays have higher energy level

(ii) Soft X-rays are commonly used in scientific research, such as studying atomic structures and electronic properties while Hard X-rays are more prevalent in medical and industrial applications, like diagnosing fractures, inspecting welds, or examining luggage at airports for security purposes.

(iii) Soft X-rays are more easily absorbed by matter than hard X-rays. As a result, softer X-rays are used to examine lighter elements, while harder X-rays are preferred for studying heavier elements in samples.

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See: NECO Civic Education Answers

NECO Physics Questions and Answers For Practice

The questions below are the NECO 2022 Physics Practice Questions. Go through them and be ready to score high in your NECO 2022 Physics Examination.

1. The equation X 150 62  => Y 150  63  + -1 + energy, represents

A. Alpha decay

B. Beta-decay

C. Gamma decay

D. Photon emission

ANSWER: B (Beta-decay)

2. The ice and steam points of a thermometer are 20mm and 100mm respectively. A temperature of 75 degree Celsius corresponds to Y mm on the thermometer. What is Y?

ANSWER: C (80mm)

3. When a yellow card is observed through a blue glass, the card would appear as

ANSWER: A (Black)

4. In a nuclear plant, the final mass of the products is 6.32×10^-27kg, while the initial mass of the reactant is 6.30×10^-27kg, the energy released in the process is (speed of light in vacuum 3.0×10^8m/s, 1eV = 1.6×10^-19J)

A. 11.25meV

B. 11.25 MJ

D. 12.25meV

ANSWER: A (11.25meV)

5. A 1.5kg stone was thrown vertically upward with an initial velocity of 42m/s, What is the potential energy of the stone at the highest point reached.

6. When two objects P and Q are supplied with the same quantity of heat, the temperature change in p is observed to be twice that of Q. The mass of P is half that of Q. The ratio of the specific heat of P to Q is

ANSWER: C (1:1)

7. The following statements were made by some students describing what happened during the determination of the melting point of solids

1. The temperature of the solid was constant until melting started

2. The temperature of the solid rose until melting started

3. During melting, the temperature was rising

4. During melting, the temperature was constant

5. The temperature continued to rise after all the solid had melted.

6. The temperature stopped rising after all the solid had melted. Which of the following gives correct statements in the right order?

A. 2, 4 and 5

B. 2, 3 and 6

C. 1, 3 and 6

D. 1, 3 and 5

ANSWER: A (2, 4, and 5)

8. A silver spoon and a wooden spoon are both at room temperature. The silver spoon is cooler to touch because silver

A. has a greater density

B. can be polished

C. is a less absorbent material than wood

D. is a better conductor of heat

ANSWER: D (is a better conductor of heat)

See: NECO Timetable

NECO Physics Essay Questions

1. (a) A student makes a model of an atom. The model contains 24 electrons, 25 protons and 26 neutrons. Some of these particles are inside a nucleus at the centre of the model. (i) Determine the nucleon number (mass number) of the atom. (ii) Explain why the model represents a charged atom. (iii) The student makes a new model of a different isotope of the same element. Describe the nucleus of this new model.

Ans:  1 (a) (i) 51 B1 (ii) more protons than electrons or different number of protons and electrons positive and negative do not cancel. (iii) 25 protons. a different number of neutrons.

2. Fig. 1.1 shows the distance-time graph for two cyclists A and B. They start a 500 m race together but finish the race at different times.

(a) Use Fig. 1.1 to determine (i) the distance between A and B at time t = 20s, (ii) the difference in the time taken by A and B for the race.

(b) Cyclist C starts the race at the same time as A and B and covers the first 200m of the race at a constant speed of 5.0 m/s. He then accelerates and finishes the race at t = 60s. (i) On Fig. 1.1, draw the distance-time graph for cyclist C. (ii) Calculate the average speed of cyclist C for the whole race.

Ans:  (a) (i) 60 m (ii) 12s (b) (i) straight line from origin to 200 m at 40s any line straight or curved from (40,200) to (60,500) (ii) s = d/t or 500/60 = 8.3m/s

Neco Physics Objective Sample Questions;

If a satellite travels at a constant speed round the earth in a circular orbit,

1. Which of the quantities in the list below are scalars. (a) acceleration (b) force (c) mass (e) speed.

2. The velocity of the satellite changes, but its speed is constant. State what is meant by velocity…………………….

3. Explain why the velocity changes……………………………

4. Explain what makes this satellite move in an orbit that is circular

Have a Target and Work Towards Actualizing it 

You have decided to pass NECO Physics 2023 and I am sure of that. Now, the next thing you should do is set targets.

You have told yourself, “I will score A in Neco Physics 2023”, that’s not all. You need to plan on how to make it happen. Create a timetable and master plan to achieve your goals.

Get the Recommended Textbook on Physics  for 2023 NECO Examination

Normally, NECO recommends books for the examination. But apart from NECO English Literature where certain novels are compulsory, you are free to use any good English Language textbook to prepare for NECO 2023 exam.

Some textbooks are more difficult to understand. If you have any topic you are finding difficult to understand, then get a textbook that will simplify the topics and make life better for you.

 Do not Skip Physics Examples and Exercise you Will Come Across While Reading: 

Many candidates are fond of skipping exercises and even examples while studying textbooks. In fact, we like notebooks so much that we could ask, “can I read my notebook and pass NECO Physics 2023?” Don’t be scared of attempting exercises in Biology. Face the challenges.

Note: The above questions are likely NECO Physics Questions and Answers, not the real questions

If you have any questions about the  NECO Physics Questions and Answers 2023 , kindly drop your question in the comment box.

Last Updated on July 27, 2023 by Admin

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126 thoughts on “NECO Physics Questions and Answers 2023/2024 | Essay and Objective”

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• NECO Physics Past Questions and Answers Pdf

December 7, 2023 Victoria Jackson NECO , Past Questions , Physics 0

NECO Physics Past Questions and Answers PDF – The National Examinations Council (NECO) is an examination body in Nigeria that conducts the Senior Secondary Certificate Examination. Are you one of those who see physics as a difficult subject? No, You do not need to worry.

Physics requires accurate thinking and a 100% focus rate. If you can simply focus, you’ll come to understand that Physics is one of the easiest subjects. You need to understand how the formula works and whether the formula applies to the questions you are asked. Using past questions and answers is one of the ways to pass examinations with ease as over 60% of questions are usually repeated in the exams.

Why you need NECO Physics Past Questions and Answers PDF

Past questions help you understand which area of the questions is more important than others. In doing so, you spend more time on the questions that are more important and give you more marks than others. This technique can help you if you have limited time.

NECO Physics Past Questions and Answers Pdf Pattern

NECO Physics Past Questions and Answers PDF are in a multiple-choice question pattern and essay. We have made it very easy for you. We bring all the questions for many years and put them together but we indicate the specific years of their occurrence. We provide the correct answers to save you time. All you need to do is devote quality time to studying the NECO Physics Past Questions and Answers PDF and watch yourself change the narrative by scoring better than you expected in the examination.

Sample of NECO Physics Past Questions and Answers PDF

1. A satellite is in a parking orbit if its period is:

A. More than the period of the earth B. Equal to the period of the earth C. The square of the period of the earth D. Less than the period of the earth

2. What does not drop through an open umbrella of silk material unless the inside of the umbrella is touched?

A. Osmotic pressure. B. Capillarity. C. Surface tension. D. Viscosity.

3. A bead traveling on a straight wire is brought to rest at 0.2m by friction. If the mass of the bead is 0.01kg and the coefficient of friction between the bead and the wire is 0.1, determine the work done by the friction.

A. 2 x 10-3J B. 2 x 102J C. 2 x 10-4J D. 2 x 101J [g= 10ms-2]

4. The stylus of a phonograph record exerts a force of 77. x 10-2N on a groove of radius 10-5m. Compute the pressure exerted by the stylus on the groove. A. 2.42 x 109 Nm-2 B. 4.90 x 108Nm-2 C. 2.45 x 108Nm-2 D. 3.45 x 108Nm-2

5. A piece of stone attached to one end of a string is whirled around in a horizontal circle and the string suddenly cuts. The stone will fly off in a direction. A. Tangential to the circular path. B. Perpendicular to the circular path. C. Towards the center of the circle. D. Parallel to the circular path.

6. A test tube of radius 1.0cm is loaded to 8.8g. If it is placed upright in the water, find the depth to which it would sink. A. 25.2 cm B. 2.8 cm C. 28.0 cm D. 5.2 cm [g = 10ms-2 density of water 1 000kgm-3].

7. A 90cm uniform lever has a load of 30N suspended at 15cm from one of its ends. If the fulcrum is at the center of gravity, the force that must be applied at its other end to keep it in horizontal equilibrium is A. 20 N B. 30 N C. 60 N D. 15 N

8. On top of a spiral spring of force constant 500 Nm-1 is placed a mass of 5 x 10-3kg. If the spring is compressed downwards by a length of 0.02m and then released, calculate the height to which the mass is projected A. 2 m B. 8 m C. 1 m D. 4 m

The complete NECO Physics Past Questions and Answers PDF with accurate answers is N2,000.

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Each year, thousands of students gain admission into their schools of choice with the help of our past questions and answers. Pastquestions.com.ng

7 Tips to Prepare for NECO Physics Exams

• Don’t make reading your hobby:  A lot of people put reading as a hobby in their CV, they might be right because they have finished schooling. But “You” are still schooling, so reading should be a top priority, not a hobby. Read far and wide to enhance your level of aptitude
• Get Exams Preparation Materials:  These involve textbooks, dictionaries, Babcock University Post UTME Past Questions and Answers, mock questions, and others. These materials will enhance your mastery of the scope of the exams you are expecting.
• Attend Extramural Classes:  Register and attend extramural classes at your location. This class will help you refresh your memory and boost your classroom understanding and discoveries of new knowledge.
• Sleep when you feel like:  When you are preparing for any exams, sleeping is very important because it helps in the consolidation of memory. Caution: Only sleep when you feel like it and don’t oversleep.
• Make sure you are healthy:  Sickness can cause excessive feelings of tiredness and fatigue and will not allow you to concentrate on reading. If you are feeling as if you are not well, report to your parent, a nurse, or a doctor. Make sure you are well.
• Eat when you feel like it: During the exam preparation period, you are advised not to overeat, and to avoid sleep. You need to eat little and light food whenever you feel like eating. Eat more fruits, drink milk and glucose. This will help you enhance retention.
• Reduce your time on social media: Some people live their entire lives on Facebook, Twitter, WhatsApp, Messenger chat. This is so bad and catastrophic if you are preparing for exams. Try and reduce your time spent on social media during this time. Maybe after the exams, you can go back and sleep in it.

If you like these tips, consider sharing them with your friends and relatives. Do you have a question or comments? Put it on the comment form below. We will be pleased to hear from you and help you score as high as possible. myPastQuestion.com .

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Home » NECO » NECO Physics Answers 2023 (Essay/Obj) Questions Out

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Neco physics answers 2023 (essay/obj) questions out.

NECO Physics Answers for 2023 Questions Released.

The Neco physics answers 2023 for SSCE questions are now available for exam candidates. The National Examination Council (NECO) Senior School Certificate Examination (SSCE) Physics paper will be written on Thursday 27th July 2023.

The O’Level Neco physics questions below are for Paper III & II: Objective & Essay which will commence at 10.00 am and end by 1.00 pm. That means the examination will last for three hours. Continue reading.

NECO Physics Answers 2023 Questions.

1. (a) A stone projected horizontally from the top of a tower with a speed of 4 ms-1 lands on the level ground at a horizontal distance of 25 m from the foot of the tower. Calculate the height of the tower. [ g = 10 ms-2 ] (b) A spiral spring with a metal extends by 10.5cm in the air When the metal Is fully in water, the spring extends by 6.8 cm. Calculate the relative density of the metal (Assume Hooke s law Is obeyed)

2. (a) Explain diffusion. (b) Give one reason why the rate of diffusion is higher in gasses than in liquid at the same temperature.

3. (a) State two conditions under which photo-electrons can be emitted from the surface of a metal. (b) List two particles characteristics of electromagnetic waves. ANS: (a) Conditions for emission of photoelectrons – the wavelength of incident radiation must be less than the threshold wavelength of the metal surface. – the frequency of incident radiation must be greater than the threshold frequency. – the energy of the incident photons (radiation) must be greater than the Work function of the metal (b) Particle characteristics of electromagnetic waves; e.g – Photoelectric effect – Thermionic emission – Radiations from heated bodies (Black body) – Emission and absorption of light  (incandescence) – Compton effect.

4. (a) Explain how gas can be made to conduct electricity. (b) Name the electric charge carriers in gases. ANS: (a) The molecules /atoms of a gas must be ionized before the gas can conduct electricity. Ionization of the gas requires that the gas pressure is very low within the enclosure and a very high voltage is applied to the enclosed gas. (b) Charge carries in gases are Electrons; Ions

5. State; (a) two applications of electrolysis in an industry; (b) one application of electrolysis in a school laboratory.

6. (a) (i) What is an eclipse? (ii) List the three types of eclipse. (b) A student in a lecture theatre can read from the board clearly but requires a pair of spectacles to read from a book. (i) What eye defect has this student? (ii) What type of lens is needed to correct the eye defect? (iii) The focal length of the lens used to correct this defect is 10 cm. Calculate the power of the lens. (c) A car B moves towards a stationary car A.  If B produces an ultrasonic sound at a point and it takes 5.6 x 10-3  s for a beep to be heard in B, calculate the distance between the two cars at that instant. (Speed of sound in air = 340 ms-1) (d) The image of an object is located 9 cm behind a convex mirror.  If the magnification produced is 0.6, calculate the focal length of the mirror.

7. (a) (i) What is a vector quantity ? (ii) Three vectors 3 ms-1 N 45o W, 12 ms-1W, and 5ms-1 S act at a point. (iii) Sketch a vector diagram to illustrate the given information. (iv) Calculate the resultant of the vectors. (b) In a laboratory experiment to determine the force constant of a spiral spring, the mass on the spring was varied and the corresponding extensions were measured and recorded as shown in the table below.

(i) Copy and complete the table.  (Take g = 10ms-2 ) (ii) Plot a graph with weight, W, on the vertical axis and extension, e, on the horizontal axis. (iii) Using the graph, determine the force constant of the spring. (iv) Determine the natural length of the spring if its length was 38.0 cm when loaded with 250 g mass.

8. (a) Define heat capacity and state its unit. (b) List two effects of heat on a substance (c) Explain how a tightly fitted glass stopper could be removed from a reagent bottle. (d) A quantity of pepper soup of mass 800g poured into a plastic container with a tight fitting lid has a temperature of 30oC. The container is then placed in a microwave oven, rated 1200 W, and operated for 3 minutes. (i) Calculate the final temperature attained by the soup.  (Assuming no heat losses). (ii) Explain why containers with tight-fitting lids are not suitable for use in microwave cooking. (iii) When the soup is brought out and allowed to cool, a dent was observed on the container. Explain. [ Take specific heat capacity of the soup  =  4000 Jkg-1 K-1 ]

9. (a) State the three characteristics of sound and the factor on which each of them depends. (b) Explain resonance as applied to sound. (c) Explain why sound waves cannot be plane polarized. (d) What role does echo play in the construction of a concert hall? (e) The surface of an eardrum (assumed circular) has a radius 2.1 mm.  It resonates with an amplitude of 0.8 x 10-7 m as a result of impulses received from an external body vibrating at 2400 Hz. If the resulting pressure change on the eardrum is 3.6 x 10-5 Nm-2. Calculate the: (i) period of oscillation (ii) velocity (iii) acceleration (iv) force. [Pi =  3.14]

10. (a) Define electromotive force. (b) State: (i) the principle of operation of a potentiometer; (ii) two advantages that a potentiometer has over a voltmeter in measuring the potential difference. (c) (i) Sketch and label a diagram of a gold-leaf electroscope. (ii) Give one use of a gold-leaf electroscope. (d) (i) Explain the action of a magnetic relay: (ii) List two factors that determine the magnitude of an induced emf in a coil. (iii) A current of 5 A passes through a straight wire in a uniform magnetic field of flux density 2.0 x 10-3 T.  Calculate the force per unit length exerted on the wire when it is inclined at 30o to the field.

11. (a) Write Einstein’s photoelectric equation and identity each component of the equation.

(b) For a photocell, state one factor each that is responsible for the: emission; r ate of emission; energy of photoelectrons.

(c) (i) Two nuclear equations are given below: +    ……………………..equation A +    ……………………..equation B Determine the values of: (p and q in equation A; (β)   m  and n in equation B and identify X. (ii) Give a reason why it is important to dispose of radioactive waste safety. (d) (i) A certain atom emits ultra-violet photon of wavelength 2.4 x 10-7m Calculate the energy of the photons

(i) – 6.0 x 10-19J

(ii) -8.2 x 10-19J -8.8 x 10-19J -1 6.7 x 10-19J

[h  =  6.6 x 10-34 Js;  c = 3.0x 108 ms-1]

Neco Physics 2023 Objective Questions.

Note:   There is nothing like Neco Physics Expo 2022 online. Neco Ssce candidates are to desist from patronizing online fraudsters/vendors who say they can provide such services as they are not real.

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Physics 2022 WAEC Past Questions

The area under a force-time graph represents--------

• A. change in kinetic energy
• B. change in momentum
• C. change in work done
• D. change in internal energy

From the principle of flotation, a body sinks in a fluid until it displace a quantity equal to its own?

The length of a simple pendulum is increased by a factor of four. By what factor is its period increase?

• A. 0.5\(\pi\)
• C. 2\(\pi\)

The linear expansivity, \(\alpha\), and cubic expansivity, \(\gamma\), of a material are related by the equation?

• A. \(\gamma\)=a
• B. \(\gamma\)=3\(\alpha\)
• C. \(\gamma\)=2a
• D. \(\gamma\)=\(\frac{1}{3} \alpha \)

Suppose three identical steel balls Q, R, and S, are placed on an undulating ground as illustrated in the diagram above. Which of the balls is/are in neutral equilibrium?

• D. Q and S only
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NECO Physics Past Questions and Answers | Theory and Objectives –Download PDF.

The National Examination Council of Nigeria (NECO) Examination is around the corner. This article provides the readers with the information on how to download NECO Physics Past Questions and Answers. NECO Physics Questions are essential for you to know if you want to pass the NECO SSCE Physics Exams 2023.

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The NECO Physics past questions and answers is a compiled material in PDF that contains past questions from NECO Physics Exams of previous years. The material comes with answers and is easily downloadable.

You can download the materials here. The instructions on how to download the NECO Physics can be found below. You are expected to follow the instructions in order for you to succeed. The material does not only contain information on NECO Physics Questions and answers but how to pass exams as well. You can see this article on the 21 indispensable steps to pass any exams with high grade .

Download also: WAEC past Questions and Answers .

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NECO Physics Sample Questions and Answers

Neco physics essay questions.

1. (a) A student makes a model of an atom. The model contains 24 electrons, 25 protons and 26 neutrons. Some of these particles are inside a nucleus at the centre of the model. (i) Determine the nucleon number (mass number) of the atom. (ii) Explain why the model represents a charged atom. (iii) The student makes a new model of a different isotope of the same element. Describe the nucleus of this new model.

Ans:  1 (a) (i) 51 B1 (ii) more protons than electrons or different number of protons and electrons positive and negative do not cancel. (iii) 25 protons. a different number of neutrons.

2. Fig. 1.1 shows the distance-time graph for two cyclists A and B. They start a 500 m race together but finish the race at different times.

(a) Use Fig. 1.1 to determine (i) the distance between A and B at time t = 20s, (ii) the difference in the time taken by A and B for the race.

(b) Cyclist C starts the race at the same time as A and B and covers the first 200m of the race at a constant speed of 5.0 m/s. He then accelerates and finishes the race at t = 60s. (i) On Fig. 1.1, draw the distance-time graph for cyclist C. (ii) Calculate the average speed of cyclist C for the whole race.

Ans:  (a) (i) 60 m (ii) 12s (b) (i) straight line from origin to 200 m at 40s any line straight or curved from (40,200) to (60,500) (ii) s = d/t or 500/60 = 8.3m/s

Neco Physics Objective Sample Questions;

If a satellite travels at a constant speed round the earth in a circular orbit,

1. Which of the quantities in the list below are scalars. (a) acceleration (b) force (c) mass (e) speed.

2. The velocity of the satellite changes, but its speed is constant. State what is meant by velocity…………………….

3. Explain why the velocity changes……………………………

4. Explain what makes this satellite move in an orbit that is circular

How to Download NECO Physics past Questions and Answers

Here are the instructions to be followed in order to download the NECO Physics Questions and answers without any issue. Please follow our instructions and guide very well.

The cost of the newly updated NECO  Past Questions and Answers  is  2,000.00  naira only for One Subject e.g

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Tips on How to Pass NECO Examination 2023

If you want to Past the NECO Examination this year, you will need to follow the instructions below.

• Practice daily with NECO Past Questions and Answers
• Write out your subjects, the dates and time.
• Engage in general revision few days to the examination and dwell more on the subjects you find difficult.
• Focus on only your first paper a week to the exam. This would make it sweet and you will have energy to read for other papers.
• Don’t read any other subject when it is two days to a particular subject.
• When you have two papers that are separated by only one day, read the second one first before going to the subject you have first.
• Ensure to be in the NECO examination venue at least two hours to the examination so that you would be balanced.
• Try to be up to date in cases of changes in the timetable.
• Have a personal copy of the NECO timetable and syllabus.
• Go through your timetable daily so that you don’t miss any paper.
• Don’t go to the hall when you are not having paper that day.

Disclaimer: Please note these are not the actual questions and answers that you will find in the NECO Examination this year, but they are the likely questions. to get the actual NECO Past Questions and answers, please call 07063986527.

Download Actual NECO Past Questions and Answers.

For Inquiries on all Past Questions Call  07063986527 or Chat on WhatsApp.

Disclaimer: Please note that we are not in any way affiliated with any of the organizations or institutions here. All articles here are for the sole purpose of providing information. All Past questions are gotten from previous years’ examinations and likely questions from the Internet and related exams. We are not in any way promising that what you find in the past questions is what you will find in your examination. We are not in any way responsible for how the reader uses the information here. Please do consult an expert or professional in your field should the need arise. Copyrights Infringement: No article from this website should be copied without a proper reference and link to the page picked from. Anything otherwise will lead to legal action of copyright infringement. All articles on this website are products of painstaking research from our writers and journalist. Should you find any material bearing semblance here to any material on your page, please quickly notify us by sending a mail to [email protected] and we will immediately commence the process of taking it down.

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NECO Physics Syllabus

Are you writing Physics in your NECO O’level exams? Download the recommended commerce syllabus to excel in your exams.

About NECO Physics Studies Syllabus

This NECO physics exam syllabus will be your guide towards the success of your examination. We’ve crafted this syllabus with a focus on concepts and applications, designed to give you a solid foundation in your upcoming examination.

This syllabus is fully stocked to aid your preparations for your NECO Physics exam. I can bet that if you religiously study and practice the outlines in the syllabus together with past questions and some online resources you will pass your exam in flying colors. 

Now, let’s talk about assessment objectives. The examiners are all about testing what you know and how you can apply it. From acquiring knowledge and understanding to handling information and problem-solving. They’ve got a variety of activities lined up to put your physics skills to the test.

Marking Guide & Sections

Paper 1 is where you kick off the exam, it consists of 50 multiple-choice questions that will  earn you 1 mark for each question and the total mark for the 50 questions will earn you 50 marks.

Paper 2 consists of two sections, Sections A and B lasting for 1 ½ hours and it’s worth 60 marks.

In section A, you’ll face seven short-structured questions, and you will need to answer any five of them. It’s all about showing off your knowledge and skills in bite-sized chunks, with a total of 15 marks up for grabs.

Then, in section B, you will face five essay questions, but here’s the catch, you only need to answer three of them. That gives you a bit of flexibility to showcase your writing prowess and earn yourself a whopping 45 marks. So get ready to put pen to paper and let those ideas flow!

Paper 3 is the practical section of the NECO Physics exam, for school candidates, it’s all about putting your practical skills to the test. Private candidates, don’t worry, the examiners have something for you too, as an alternative to practical work paper. You will have three questions to choose from, and you will need to answer any two of them in 2 ¼ hours. It’s your chance to roll up your sleeves and have some fun, all while earning yourself a cool 50 marks.

Download NECO Physics Syllabus

Best candidates excel because they study smart and hard. Know what’s expected of you.

Download the NECO recommended Physics syllabus.

The NECO Physics Syllabus

Recommended NECO Physics Textbooks

1. Ike, E. E (2014) Essential Principles of Physics, Jos ENIC Publishers.

2. Ike, E. E (2014) Numerical Problems and Solutions in Physics, Jos, ENIC Publishers.

3. Nelson, M (1977) Fundamentals of Physics, Great Britain: Hart Davis Education.

4. Nelson, M and Parker … (1989) Advanced Level Physics (Sixth Edition), Heinemann.

5. Okeke, P. N and Anyakoha, M. W (2000) Senior Secondary School Physics, Lagos, Pacific Printers.

6. Olumuyionwa A. and Ogunkoya O. O (1992) Comprehensive Certificate Physics, Ibadan: University Press Plc.

All NECO Syllabus

Frequently asked questions about the neco physics exams.

The essay questions in Paper 2 are a chance to express your knowledge and writing skills. When approaching these questions, take a moment to read through all the options and choose the ones you feel most confident about. Then, plan your answers carefully, making sure to structure them clearly and provide plenty of examples to back up your points. Remember to keep an eye on the clock and leave yourself enough time to review your answers before submitting.

When preparing for the practical test, make sure you’re familiar with the equipment and procedures you’ll be using. Pay attention to detail and follow instructions carefully, making accurate observations and measurements along the way. And don’t forget to practice your problem-solving skills, you never know what challenges might come your way during the test.

 Don’t panic, you’ve got options! If you come across a question that’s giving you trouble, take a deep breath and read it over carefully. Sometimes, just taking a moment to digest the question can make all the difference. If you’re still stuck, don’t hesitate to raise your hand and ask the invigilator for clarification. They’re there to help you, so don’t be shy about speaking up. Remember, it’s better to ask for help than to struggle in silence.

When studying for the NECO Physics exam, it’s important to focus on all the key topics outlined in the syllabus. This includes concepts like matter, motion, energy, waves, fields, Atomic and Nuclear Physics, and electronics. Make sure to allocate your study time wisely and give each topic the attention it deserves. And don’t forget to review any areas where you feel less confident,every bit of preparation counts.

Yes, you can! Calculators are generally permitted for use during the NECO Physics exam. However, it’s always a good idea to double-check the exam guidelines or ask your teacher for confirmation just to be sure. Remember to familiarize yourself with your calculator and its functions beforehand so you can use it effectively during the exam.

 Improving your problem-solving skills is all about practice, practice, practice! Start by solving a variety of physics problems from past papers, textbooks, and online resources. Pay attention to the steps involved in solving each problem and try to understand the underlying concepts behind them. Don’t be afraid to challenge yourself with more difficult problems as you become more confident.

 Marks for the practical test in Paper 3 are typically awarded based on the accuracy and completeness of your observations, measurements, and conclusions. Make sure to follow instructions carefully, record your data accurately, and present your findings clearly and logically. Pay attention to details like precision, accuracy, and units, and don’t forget to include any necessary calculations or graphs to support your conclusions. With careful preparation and attention to detail, you’ll be sure to earn those marks.

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To subscribe for our 2021/2022 Neco assistance program, it cost N5000 for all subjects and payment is made directly to our account number. We currently have the correct complete and verified Physics Questions and Answers available. We assure you of A in this Physics Paper and all other papers you will write in your NECO examination. All NECO subjects Questions and Answers [Objectives and theory] has been posted here. Click here to see them Once you’ve subscribe to our Neco assistance program expo runs you will be added to our official Whatsapp group chat where you will be getting daily questions and answers, we guarantee you A’s and B’s in all your subjects.

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NECO Syllabus for Physics 2023/2024 SSCE & GCE | DOWNLOAD & CHECK NOW

This content would be giving you by the National Examination Council in the short “NECO” Syllabus for Physics 2023/2024. details about the syllabus.

NECO Exam is finally taking place, and all candidate who is writing Physics in the GCE or SSCE exams is to go through the Syllabus for Literature in English 2023/2024.

Unlike WAEC, NECO is for Nigerian students only. The examination is meant for secondary school students in their final year, the exam is used for entrance into higher institutions which is why it is critical for any student taking part in this examination to pass it.

To pass NECO or any examination at all with flying colors, you will need to read thoroughly, and I don’t mean reading aimlessly, you will need a guide like a scheme of work or syllabus. This is why in this article we have helped all students sitting for the NECO examination this year to compile the NECO Syllabus for Physics.

NECO Syllabus for Literature in English 2023/2023

Before we give you this syllabus you should know that there is no syllabus for NECO at all, even on NECO’s official website , but from previous years we have found out that questions from WAEC and NECO are very similar, which means they share the same syllabus. Below is the detailed NECO Syllabus for Physics.

If you want to be successful with Physics in Your SSCE & GCE examinations, You need to spend some quality time with this NECO Syllabus.

CLICK ON  THIS LINK TO VIEW THE NECO SYLLABUS FOR PHYSICS

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Physics-Obj 01-10: EADCAEBEBC 11-20: ECDDCDBCCB 21-30: CECBEADCBB 31-40: BADDCDCAAA 41-50: EDACDCACAA 51-60: CEBACCBCAC

PHYSICS-ANSWERS! (1a) (i) Solar water heaters: These are devices that use solar collectors to absorb energy from the sun and heat water for domestic or industrial use.

(ii) Solar air heaters: These are devices that use solar collectors to absorb energy from the sun and heat air for space heating or ventilation purposes.

(1c) Total Magnification = Magnification of Objective Lens × Magnification of Eyepiece Lens

Given, Total Magnification = 10 Magnification of Objective Lens = 2

Let “E” represent the magnification of the eyepiece lens.

10 = 2 × E E = 10/2 E = 5

(2a) Static friction is a type of friction that exists between two surfaces in contact with each other when they are not moving relative to each other.

(2b) Coefficient of static friction (μs) = Force of static friction/ Normal force

Give: Force of static friction = 3N Normal force = 5N μs = 3N / 5N = 0.6

(4a) The velocity ratio of a machine is the ratio of the distance moved by the effort to the distance moved by the load. It is a measure of the effectiveness of a machine in transmitting force.

Velocity ratio = distance moved by effort / distance moved by load

(4b) A second order lever has the load in the middle, with the effort applied on one side and the fulcrum on the other. The effort arm is longer than the load arm, which means the machine has a mechanical advantage. Examples of second order levers include wheelbarrows and nutcrackers WHILE A third order lever has the effort applied on one end, the load on the other end, and the fulcrum in between. The load arm is longer than the effort arm, which means the machine has a mechanical disadvantage. Examples of third order levers include tweezers and shovels.

(7) Given: – Angle of incidence (θ₁) = 60° – Speed of light in air = 3×10⁸ m/s – Speed of light in glass = 2×10⁸ m/s The refractive index (n) of a medium can be calculated using the formula: n = speed of light in vacuum / speed of light in the medium Refractive index of air (n₁): n₁ = speed of light in vacuum / speed of light in air n₁ = 3×10⁸ m/s / 3×10⁸ m/s n₁ = 1 Refractive index of glass (n₂): n₂ = speed of light in vacuum / speed of light in glass n₂ = 3×10⁸ m/s / 2×10⁸ m/s n₂ = 1.5 Using Snell’s law to find the angle of refraction (θ₂): n₁ × sin(θ₁) = n₂ × sin(θ₂) 1 × sin(60°) = 1.5 × sin(θ₂) sin(θ₂) = (1 × sin(60°)) / 1.5 sin(θ₂) = sin(60°) / 1.5 θ₂ = arcsin(sin(60°) / 1.5) θ₂ ≈ arcsin(0.86602540378 / 1.5) θ₂ ≈ arcsin(0.57735026919) θ₂ ≈ 35.26°

(8a) (i) Electric motors: Electromagnets are used in electric motors to convert electrical energy into mechanical energy. An electric motor contains an armature with a coil of wire that rotates within a magnetic field created by an electromagnet. (ii) Magnetic resonance imaging (MRI): Electromagnets are used in MRI machines to create a strong magnetic field that aligns the protons in the body’s tissues. Radio waves are then used to create images of the body’s internal structures. (8b) The soft iron bar can be converted to a magnet by placing it in contact with a bar magnet. When the bar magnet is brought close to the soft iron bar, the magnetic domains in the soft iron bar become aligned with the magnetic field of the bar magnet. This causes the soft iron bar to become magnetized and it will now be able to attract other magnetic materials.

(9a) Reactance refers to the opposition that an electrical circuit or component exhibits to the flow of alternating current (AC). It is a fundamental concept in understanding AC circuits and is closely related to the concept of impedance. (9b) Xc = 1/(2πfC) where: Xc = Capacitive reactance in ohms (Ω) π = 3.14 (approximate value) f = Frequency in Hertz (Hz) C = Capacitance in Farads (F) Given: Capacitive reactance (Xc) = 3000Ω Capacitance (C) = 5µF = 5 * 10-⁶F π = 3.14 Rearranging the formula to solve for frequency (f): f = 1/(2*π* Xc* C) Substituting the given values: f = 1/(2 * 3.14 * 3000 * 5 * 10-⁶ ) f = 1/(2 * 3.14 * 3000 * 0.000005) f = 1/(6.28 * 0.015) f = 1/0.0942 f=10.62Hz (approx. 2 decimal)

(10a) Photoelectrons are electrons that are emitted from a material when it absorbs electromagnetic radiation, typically in the form of photons (light). This phenomenon is known as the photoelectric effect. (10b) Formula for threshold frequency; F = E/h Where, F= Frequency E = Work function(Energy) h= Plank’s constant (6.6×10-³⁴) Converting the work function to joules: Work function (ϕ) = 3.5 eV = 3.5 × 1.6 × 10-¹⁹ J = 5.6 × 10-¹⁹ J Substituting the values F = E/h F= 5.6 × 10-¹⁹/6.6×10-³⁴ F= 8.48×10¹⁴Hz

(11a) (i) Radiation exposure: X-rays are a type of ionizing radiation, which means that they can damage the DNA in cells and increase the risk of cancer. Exposure to high doses of X-rays can also cause radiation sickness, which can lead to nausea, vomiting, and hair loss. (ii) Skin burns: X-rays can cause skin burns if the skin is exposed to a high dose of radiation. The severity of the burn depends on the dose of radiation and the duration of exposure. (11b) (i) Soft X-rays have lower energy levels, while hard X-rays have higher energy level (ii) Soft X-rays are commonly used in scientific research, such as studying atomic structures and electronic properties while Hard X-rays are more prevalent in medical and industrial applications, like diagnosing fractures, inspecting welds, or examining luggage at airports for security purposes. (iii) Soft X-rays are more easily absorbed by matter than hard X-rays. As a result, softer X-rays are used to examine lighter elements, while harder X-rays are preferred for studying heavier elements in samples.

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NECO 2022 Timetable For Nigeria Students (PDF)

The NECO exam is fast approaching, and candidates are getting ready for the exam.

Many candidates are asking whether the NECO exam timetable is out or not.

If you are searching for the NECO 2022 exam timetable, you are in the right place.

But first, let's quickly answer the question you've been longing to know.

RECOMMENDED: NECO Registration 2022: All You Need To Know

Is NECO 2022 Timetable Out?

Absolutely yes, the 2022 NECO timetable is finally out. 

The National Examination Council (NECO) management has released the official timetable for this year.

NECO 2022/2023 Timetable For Nigeria

The NECO timetable covers all Science, Art, and Commercial subjects. 

NECO 2022 Registration Closing Date (Deadline)

The West Africa Examinations Council (WAEC) has announced that there won’t be an extension of the registration for the 2022 WAEC candidates. 

The deadline for the 2022 WAEC exam will be on the 30th of April, 2022. Candidates should register for the exam before the deadline.

READ ALSO:   10 Powerful Ways To Improve Your Academic Performance

Is NECO 2022 Syllabus Out?

Yes, the WAEC 2022 syllabus for all the subjects offered in Senior Secondary School is out. Candidates should get the syllabus and start preparing for the exam.

You can easily download the WAEC 2022 syllabus PDF file on google.

How Much Is NECO 2022 Registration Fee?

Before you can be qualified as a candidate to sit for the WAEC 2022 exam you are expected to pay a registration fee of Eighteen Thousand Naira (N18,000) at any WAEC Registration centre near you or your chosen school.

NB:  Registration fee varies in different schools (private) if you are a school candidate.

Kindly share this post with your friends. If you have any questions, drop them in the comment box. I wish you success in your exam.

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NECO Agric Questions and Answers 2022/2023 (Obj, Essay & Theory)

• March 29, 2022

Do you need the real NECO Agricultural science obj and essay questions and answers for 2021?

If yes, then you have come to the right place. Disregard ant website telling you to pay a certain amount to get the NECO 2021 Agric answers because you’re going to get it free of charge here.

In case you’re here for the practical instead, See; NECO Agric Practical Specimen & Answers

The NECO Agric Science paper is supposed to hold on the 30th of July 2021.

According to the timetable;

Friday 30th July 2021 . Paper III & II: Objective & Essay – Agricultural Science 10:00am – 12:30pm.

NECO Agric Science (Essay / Theory) Answers 2021 .

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Please check back in 5 minutes. Or you can click here to refresh NECO Agric answers.

NECO Agriculture Objective Answers (2020 Answers)

1-10: AEAAECDCCB

11-20: DECECAABDD

21-30: CCBAAAACCB

31-40: EEBDABCCCC

41-50: DCAEBDCEAB

51-60: BBCCEDCADB

How to pass NECO Agric Science

You can actually score grade A1 in your agric science for NECO this year by following this guide.

If you want to pass NECO agric science, you must:

• Before the exam, read and practice previous questions to learn how to recognize organisms and their physical characteristics.
• Bring your drawing tools and a pen inside the examination room.
• Pay attention to what the teacher and examiner are saying.

If you have any challenges loading the NECO Agric answers, Please kindly let us know using the comment section below.

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2022 NECO Physics (OBJ & Essay) Answers [29th July, 2021]

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NECO 2023: Physics Objectives And Essay Questions with Solutions

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