See all the NECO Physics Questions and Answers 2025 | Objective and Essay
If you are a candidate of the 2025 NECO examination and you have come across this post, then you should know that you are very lucky. Here everything that you require to make an excellent result in NECO Physics has been made available. Make sure that you read carefully to the end to maximise the content of this article.
In this article, a complete compilation of the NECO Physics questions and answers for the 2025 SSCE has been explained in detail. It is one of the best preparation materials that you can make use of if you really desire to have an A in the subject. From the testimonies of those who have read this article, it is confirmed that most of the questions revealed here do reappear in physics every year. Pay attention as you continue to read so that you will join those that will testify when the result is out.
Complete NECO Physics Questions and Answers 2025
The following is a complete answer for NECO Physics 2025:
NECO Physic Objectives
1-10: BCBBACACBD
11-20: DEADBCDAEE
21-30: DAACAADEAC
31-40: BADEDCAEAB
41-50: EBDDDDAEEB
51-60: BBEAABBCBC
NECO Physics Theory Answers:
PARTI Answer BIX Questions From This Part (No 1 and any other FIVE)
(1a) (Plok Any TWO)
(1) Solar Electric Power Generation
(II) Solar Cooking
(III) Solar Thermal Power Production
(iv) Solar-distillation
(1b) A natural satellite is a celestial body in space that orbits a larger body, such as the Moon, which moves around the Earth. Artificial satellite is a machine of human creation that is sent to the space or the orbit of the Earth for the collection of data and communication other hands
(10) The applicable relationship is Ne/Np = Vs/Vp meaning the ratio of secondary voltage to primary voltage is equal to the ratio of secondary turns to primary turns No = turns Nc/Np=Vs/Vp Np=Nc[Vp/Vc) Np= 200 A (80/300) Np200 A 0.2 Np= 40 turns 300V, Np?, Vp=80V
(2a) oroe is an agent that changes or tends to change the state of rest or of uniform motion in a straight line of a body
(2b) Contact force is a force which is in contact with the body to which they not require contact with the body to which are applied Field force sources do
(3a) Maximum range (R) is defined as when the angle of the projection (1) is equal to 46, R = Usin 80° and = 46, R = U cos 90° and sin 90° = 1, Rmax = U Fig
(3b)
(1) stable Equilibrium – A cone resting on its base
(II) Unstable Equilibrium – A cone resting on its apex or vertex
(4a) It means that the glycerine, which is in solid state, will require a heat of 13°c to change to liquid state
(4b)
(i) The S.I unit of mass is in kilogram (kg) while that of weight is in Newton (N)
(ii) Mass is the quantity of matter in a body, while weight is the earth’s pull on a body
(iii) Mass is a scaler quantity, while weight is a vector quantity
(5) The lower fixed point is determined by placing the thermometer upright in pure melting ice contained in a glass funnel as shown below:
PLEASE DRAW THE DIAGRAM HERE, THEN CONTINUE BELOW.
When the mercury level remains steady, a mark is made on the stem of the thermometer at this level which represents the lower fixed point
(6) Constructive interference is formed when the wave amplitudes reinforce each other, building a wave of even greater amplitude. Destructive interference is formed when the wave amplitudes oppose each other, resulting in waves of reduced amplitude.
(7) DRAWING
(8a) Faraday’s law states that the induced e.m.f. in a conducting circuit is directly proportional to the rate of change of magnetic flux linkage, Î, with the circuit.
(8b)
(i) Induction motors
(ii) Electric generators
(9a) Electric field acts on charges (Q) while Gravitational field acts on masses (m)
Emf = 12v
(9b) 1=?
r=0.451©
R = 5.01©
I = Emf/R + r
1=12/5+0.45=12/5.45
1=2.20A
(11) ADVANTAGE:
(Pick Only ONE)
(i) It is used in generating heat energy required to generate electricity
(ii) It can be operated non-stop with the same nuclear capacity
DISADVANTAGES:
(Pick Only TWO)
(i) The plant set up is capital intensive
(ii) Principal raw material (uranium) is not easily available.
(iii) Careless exposure to raw material affects the cell tissues due to radiation effects.
PART II
Answer Any FOUR Questions From This Part
(12a)
Centripetal force and centrifugal force
(12b)
DRAWING
(12ci)
Archimedes’s principle states that when a body is totally or partially immersed in a fluid, it experience an upthrust which is equal to the weight of the fluid displaced.
(12cii)
eo = 4Ã-108 kg/m³ Mo = 0.4kg Vo = ? eL = 1.2A-103 kg/m³ Where, eo = Density of object Mo mass of object Vo = volume of object eo = Mo/Vo VoMo/eo = 0.4/4A-108 Vo = 0.00001m² Mo in the liquid = eL Ä- Vo 1.2A-10A-Vo Ä-3/4 (1.2A-10 A- 0.00001A-3)/4 = 0.0009kg = 9A-10-20 kg Reading of the spring = 9Ä-10-2 A-10=9A-10-3 N
(13a)
Examples of renewable energy are:
(i) solar energy
(ii) Wind energy
(13b)
Radius of the wheel = B
Radius of the axle = O
V. R = Distance moved by effort / Distance moved by load
Effort moves through a distance is equal to the circumference of the wheel (21€B), and at the same time interval, the load moves through the axle (21€D).
V.R-21€B/2Ï€D=B/D
(13ci)
It breaks because ice is less dense than water and water expands when it is frozen
(13cii)
Evaporation takes place at all temperature while boiling takes place at a particular temperature (100°c)
(13d) m * 1 = 200kg u * 1 = 16.7m/sV * 2 = 0.5 m/s m * 2 = 200kg m1u1 + m2V2 = (m1+m2)V 200 tilde A – 16.7 + 200 tilde A – 0.5 = (200 + 200) * V V = 3340 + 100/400 = 3440/400 V = 8.6m / s
(14ai)
A wave is a disturbance which travels through a medium, transferring energy from one point to another without causing any permanent displacement of the medium
(14aii)
Tabulate
– Light wave:
(i) It is an electromagnetic wave
(ii) It can be polarized
– Sound wave:
(i) It is a mechanical wave
(ii) It can can not be polarized
(14b) Long sight (hypermetropia) can be corrected with converging lens
(14c) F = 440Hz L1 = 18.8cm L2 = 57.8 cm
(14ci)
At resonance L+c= 1/4 Where C is the end correction. Assuming the end correction C is negligible, then L1 = 1/4, 4L1 = 4 A – 18.8 = λ 4A – 4A-18.8/100-0.752m
(14cii)
First position L1=1> Second position L2 =1> Hence, L2-L1 = 1/4 V= fi» or f=V/I> V = 2f(L2-L1) V=2A-440(0.5733 -0.188) V= 880(0.385) V=338.8m/s
(14ciii) Overtime = 51>»/4 5A-0.752/4 = 3.76/4 = 0.94m or 94cm
(15a) Electric field intensity is the measure of intensity or strength of electrical force per unit charge at any given point in the electric field. It is denoted by the letter E and its Unit is Newton per Coulomb (N/C). Where
F is force (N)
Q is Change (C)
(15bi)
A lead accumulator is charged by passing direct current (d.c.) through it in the opposite direction to that which it supplies. The positive terminal of the d.c. is connected to the positive terminal of the lead accumulator, and the negative terminal of the d.c. is connected to the negative terminal of the accumulator.
(15bii)
Electrolyte in battery is a solution of SO₄’ and H₂O and, over time, can be lost by slight spills and evaporation. Using distilled water, it is free from additional minerals that can be find in tap water and these minerals can significantly decrease the life of batteries
(15ci)
Faraday’s law of electrolysis states that the chemical deposition due to the flow of current through an electrolyte is directly proportional to the quantity of electricity (coulombs) passed through it. i.e. mass of chemical deposition.
(15cii) Area = 50cm² => 510-2 M² 1=7A t = 4560(s) T = thickness M = zit, m = 3.3 * 10^-7 * 784560 =>6.237 10-3 kg P=m/v 8.910 kg/m³ = 6.237 10-3/V 6.237 10-3/8.910 => 7.00810 -> m² Thickness = volume/area 7.00810^-7/510-=> 1.40*10^20m
(16ai)
Binding energy is the minimum energy or work required to separate the nucleons of an atom
(16aii)
() it is used in medicine as a radiotherapy
(ii) It is used in industry to study the defects in metals and welded joints
(16bi)
The intensity of x- ray can be increased in x-ray tube by increasing the voltage, which results to an increase intensity of an electron
(16bii)
(i) Both are electromagnetic waves
(ii) Both are high energy photography
(16ci)
W=2.2510^-19J i»=3.010^-7m fo=? W= hfo 2.2510^-19 6.610^-34fo fo= 2.2510^-19/6.610^-34 = 2.25/6.6 *10^-19 +34 =0.341* 10^15Hz =3.41*10^14
(16cii)
Max energy liberated = E = hc/λ – W
=(6.6A-10^-34 A-3A-10^8/3.0A-10^-7) -2.28A-10^-19
(6.6A-10^-19)-(2.25A-10^-19)
4.35A-10^-19 J
See also:
NECO Civic Education Questions and Answers for 2025 | Essay and Objectives
NECO Biology Questions and Answers for 2025 | Essay and Objectives
NECO Government Questions and Answers for 2025 | Essay and Objectives
NECO Biology Practical Specimen, Questions And Answers 2025 | Complete Specimen And Solutions
NECO Home Management Questions And Answers 2025 | Essay And Objectives
NECO Mathematics Questions And Answers For 2025 | Theories And Objectives
NECO Agric Questions And Answers 2025 | Essay And Objectives
NECO Marketing Questions And Answers 2025 | Theories & Objectives
How to Score an “A” in NECO Physics Examinations
I have discovered that a lot of candidates do find it difficult to answer NECO Physics examination questions, thereby contributing to their general poor performance in the examination for every year.
That is the reason why I have decided to include this vital section to the article you have been reading. For you to perform excellently in NECO Physics Examination there are certain things that you must do.
In this section of the article, I will be showing you some tips that are very essential for you to score an “A” in Physics at the end of the examination. Those things that you should include the following:
1. Cover your Syllabus
For you to make an “A” in NECO Physics examination, it is a pre-requisite that you must finish the NECO syllabus on Physics. This will enable you to have good courage as you go ahead to write your examinations. This, in turn will guarantee your good success at the end of your examination.
2. Follow Instruction
Once you get into the examination venue and you have gotten your question paper and answer booklets, you have to read the given instructions carefully before you can start answering the questions.
After reading the instruction, ensure that you follow every given instruction strictly to the end to avoid being penalized for lack of adherence to instructions.
3. Complete your questions
Before you submit your answer booklets, ensure that you have answered completely and accurately all the required questions. For example, if you are required to answer five questions, make sure that you do not answer less than or above that number.
Failure to do adhere to this rule will attract a punishment that might lead to your poor performance at the end of your examination. To add to that, do not submit your booklet without proper reviewing your answers.
Get more tips: How to Pass your NECO Examination at One Sitting
Make sure you put every instructions given in article into practice and you will come out with a flying colours. If you have any other questions about NECO Physics Questions and Answers 2025, kindly make use of the comment below.
Goodluck!