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Physics Neco 2025

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Question 1 of 60
1. Question
Which of the following pairs of quantities are both derived?
Acceleration and length
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Force and density
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Time and electric current
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Volume and mass
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Work and temperature
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Question 2 of 60
2. Question
In which of the following does streamlining not apply?
Aeroplane
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Motor car
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Parachute
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Rocket
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Ship
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Question 3 of 60
3. Question
A car travels at an average speed 110 kmh. What distance does it cover in 12 minutes?
1320.00 km
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550.00 km
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22.00 km
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9.17 km
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0.36 km
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Question 4 of 60
4. Question
A body with an initial velocity u, accelerates non-uniformly to attain a velocity v after a time t. Which of the following velocity time graphs represents its motion?

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Correct Incorrect Correct answer

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Question 5 of 60
5. Question
A force of 20 N is applied to a block of wood at an angle of 35° to the horizontal. Calculate its vertical component.
34.87 N
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28.56 N
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16.38 N
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14.00 N
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11.47 N
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Question 6 of 60
6. Question
A car moved from point A with a velocity u and its velocity doubled when it reached point B. If the distance between A and B is d, which of the following expressions represents the magnitude of its acceleration?
u/2d
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u²/2d
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u²/d
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3u²/2d
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2u/d
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Question 7 of 60
7. Question
Two men of weights 500 N and 750N sat at the ends of a 4 m long sea-saw. If the sea-saw balanced horizontally, calculate the distance of the pivot from the 500 N man.
1.6 m
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2.0 m
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2.4 m
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2.5 m
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3.1 m
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Question 8 of 60
8. Question
On which of the triangular plates, of weight W, represented below is the centre of gravity correctly located?

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Question 9 of 60
9. Question
The path of a projectile is
elliptical
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helical
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horizontal
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parabolic
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spherical
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Question 10 of 60
10. Question
A spring makes 40 oscillations in 15 s, calculate its angular velocity. [π =3.14]
251.20 rads⁻¹
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16.75 rads⁻¹
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6.28 rads⁻¹
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2.36 rads⁻¹
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0.43 rads⁻¹
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Question 11 of 60
11. Question
A ball of mass 7 kg falls from a height of 120 m. Calculate its kinetic energy after falling through a distance of 70 m. [g=10 ms⁻²]
13.3 kJ
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11.9 kJ
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8.4 kJ
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4.9 kJ
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3.5 kJ
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Question 12 of 60
12. Question
Which of the following sets comprises first, second and third order levers respectively?
Bottle opener, forearm, plier
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Bottle opener, plier, forearm
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Forearm, bottle opener, plier
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Plier, bottle opener, forearm
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Plier, forearm, bottle opener
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Question 13 of 60
13. Question
Nuclear energy is classified as non-renewable energy resource because
it has high economic importance
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it is a product of nuclear reactions.
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it is not easily generate
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it will be exhausted over time
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the substances for its production are not readily available
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Question 14 of 60
14. Question
A 4 kg gun placed horizontally on a flat surface is used to fire a bullet of mass 0.03 kg. If the bullet moves off with a velocity of 520 ms⁻¹, calculate the recoil velocity of the gun.
516.13 ms¹
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20.80 ms¹
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15.60 ms¹
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3.96 ms¹
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3.87 ms¹
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Question 15 of 60
15. Question
A metal of length 17.02 m was heated till its temperature increased by 80° If its new length is 17.06 m, calculate its linear expansively.
2.93×10⁻⁵ K⁻¹
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2.94×10⁻⁵ K⁻¹
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8.51×10⁻⁵ K⁻¹
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1.25×10⁻² K⁻¹
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1.88×10⁻⁴ K⁻¹
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Question 16 of 60
16. Question
Alcohol is preferred to mercury as a thermometric liquid in the arctic region because it
has a lower boiling point.
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has a lower freezing point.
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has higher expansivity.
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is odourless
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wets glass.
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Question 17 of 60
17. Question
An iron beam of heat capacity 670 JK⁻¹ was heated till its temperature changes from 44 °C to 94 °C. Calculate the quantity of heat supplied to the beam.
93.29 kJ
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63.54 kJ
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33.80 kJ
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29.74 kJ
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0.01KJ
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Question 18 of 60
18. Question
The saturated vapour pressure of water vapour is 15 mmHg at 25 °C and 9 mmHg at 8 °C. If the average air temperature is 250 °C and the dew point is 8 °C, calculate the percentage relative humidity of the air.
100%
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60%
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32%
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15%
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9%
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Question 19 of 60
19. Question
A fixed mass of gas was heated at constant pressure from 27 °C to 57 °C.
633.33 cm³
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333.33 cm³
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330.00 cm³
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272.73 cm³
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142.11 cm³
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Question 20 of 60
20. Question
The following are steps involved when charging an electroscope by induction:
I. The rod is removed
II. A negatively charged rod is brought near the cap
III. The cap is touched by a finger
IV. The finger is removed. The correct sequence is
I, II, III and IV.
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II, III, I and IV.
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II, III, IV and I.
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II, I, II and IV.
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IV, III, II and I.
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Question 21 of 60
21. Question
A radio station broadcasts at a frequency of 1 50 kHz, calculate the wavelength of the wav/ [c=3.0×10⁸ ms⁻¹]
5.0×10⁻⁴ m
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2.0×10³ m
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2.0×10⁶ m
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4.5×10¹⁰ m
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4.5×10¹⁰ m
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Question 22 of 60
22. Question

3000 ms⁻¹
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1500 ms⁻¹
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60 ms⁻¹
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50 ms⁻¹
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30 ms⁻¹
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Question 23 of 60
23. Question
An object of height 80 cm is placed in front of a pin-hole camera of length 12cm, if the magnification of the image produced is 0.4, calculate the image height.
200.0cm
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48.0cm
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32.0cm
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30.0cm
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4.8cm
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Question 24 of 60
24. Question
The critical angle of a semi-circular glass block is given as43° if a ray of light is incident in the glass at 42° to the normal, what is the nature of the refracting ray(s)?
Strong refracted along the glass surface
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Strong refracted ray and strong reflected ray
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Strong refracted ray and weak reflected ray
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Weak reflected ray along the normal
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Weak refracted ray and weak reflected ray
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Question 25 of 60
25. Question
In an experimental set-up for the production of a pure spectrum, what is the function of the converging lens placed next to the light source? It
converges the light rays on the screen.
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converges the light rays onto the prism.
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separates the light rays into its component colours.
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makes the light to shine brighter.
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Produces parallel rays incident on the prism.
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Question 26 of 60
26. Question
Which of the following is not a similarity between gamma rays and ultraviolet rays? Both
are electromagnetic waves.
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are transverse waves.
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can be detected by human skin.
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Can be polarized
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travel at the same speed
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Question 27 of 60
27. Question
The part of the human eye that serves the same purpose as the aperture of a camera is
ciliary muscle
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iris.
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Optical nerve
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pupil
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retina
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Question 28 of 60
28. Question
In an experiment to determine the frequency of the note produced by a disc siren, the counter counts 200 revolutions in 2 minutes. If the disc has 40 holes in its ring, calculate the frequency of the note emitted
8000.0 Hz
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4000.0 Hz
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400.0 Hz
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66.7 Hz
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13.3 Hz
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Question 29 of 60
29. Question
An air column in a closed pipe is set into vibration to produce a note of fundamental frequency 220 Hz. If the pipe is 37.5 cm long, determine the speed of the sound
Neglect end correction.
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11000 ms⁻¹
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3300 ms⁻¹
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2063 ms⁻¹
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330 ms⁻¹
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Question 30 of 60
30. Question
Which of the following sets consists of stringed instruments only?
Flute, clarinet and cymbal
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Guitar, pipe organ and gong
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Piano, tuning fork and pipe organ
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Saxophone, xylophone and piano
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trumpet Violin, guitar
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Question 31 of 60
31. Question
Which of the following statements is correct about electric and magnetic field? Electric field
has north and south poles while magnetic field has position and negative charges
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is measured in tesla while magnetic is produced by moving charges while magnetic field is measured in volt per metre
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is produced by moving charges while magnetic field is produced by stationary charges
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lines ends on negative charge while magnetic field lines end on north pole
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lines start on positive charge while magnetic field lines start on north pole
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Question 32 of 60
32. Question
Calculate the gravitational potential at a point on the earth's surface, if the mass of the earth is 6.0x1024 kg. [Radius of the earth = 6.38×106 m, G = 6.7×10-11 Nm2kg-2]
3.8x1012 Jkg-1
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5.9×1023 Jkg-1
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6.3×107 Jkg-1
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9.8×107 Jkg-1
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7.1×1024 Jkg-1
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Question 33 of 60
33. Question
Three lamps rated 60 W, 220 V each are connected in parallel across a 220 V source. Calculate the magnitude of the current in the lamps.
4.01 A
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3.90 A
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0.82 A
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0.27 A
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0.09 A
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Question 34 of 60
34. Question
A galvanometer connected in series to a battery can be used to measure the battery's voltage by connecting to it a/an
capacitor in series.
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Inductor in parallel.
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Resistor of low resistance in parallel.
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Voltmeter in parallel.
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wire of high resistance in series.
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Question 35 of 60
35. Question
The effective capacitance of an arrangement of four capacitors is 5 µF. Which of the circuit diagrams below represents the arrangement?

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Correct Incorrect Correct answer

Correct Incorrect Correct answer

Correct Incorrect Correct answer

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Question 36 of 60
36. Question
An industrial method of making magnet is
divided touch
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Electrical
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heating
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Mechanical
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single touch.
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Question 37 of 60
37. Question
Electromagnets are used in the following devices except in
electric bell
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Loudspeaker
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magnetic relay.
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microphone
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telephone earpiece
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Question 38 of 60
38. Question
Eddy current loss and heat loss in a transformer are
due to leakage of magnetic flux
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Due to magnetization
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in form of heat
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reduced by laminations
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reduced by using special alloys
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Question 39 of 60
39. Question
An alternating current is represented by the relation I = 2 sin 700πt. The value for peak current and frequency are
700 A, 1400 Hz.
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700 A, 702 Hz.
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2 A, 700 Hz.
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2 A, 698 Hz.
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2 A, 350 Hz.
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Question 40 of 60
40. Question
An alternating current with a peak value of 3 A passes through a resistor of resistance 10 Ω. Calculate the time rate at which energy is expended in the resistor.
300 W
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90 W
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78 W
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45 W
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30 W
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Question 41 of 60
41. Question
Figure 3.1 is a representation of the earth, showing different points on its surface.
Which of the sets of points stated below have equal acceleration due to gravity?
I and II
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II and III
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II and IV
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III and V
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IV and VI
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Question 42 of 60
42. Question
The forces acting on a ball of mass m, falling with an acceleration a, through a viscous liquid are represented in Figure 3.2.
Which of the following expressions correctly represents the weight W, of the ball?
ma-(v+u)
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ma + (v-u)
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ma -v+ u
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v +u -ma
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v+u+ma
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Question 43 of 60
43. Question
The rate of diffusion in solid, liquid and gas decreases from
gas to liquid to solid
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gas to solid to liquid
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liquid to solid to gas.
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Solid to gas to liquid
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solid to liquid to gas.
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Question 44 of 60
44. Question
The following statements are correct about Bohr's model except that it
explained that atoms are unstable
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explained the existence of line spectra
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gave an explanation for absorption spectra
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predicted ionization energy for hydrogen
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proposed that the ground state is the lowest energy state
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Question 45 of 60
45. Question
Two radioactive materials A and B with M and N numbers of atoms have half-life of 5 and 15 days respectively. Express the fraction of the remaining atoms of A to B after 15 days.
4M/7M
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7M/4N
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M/16N
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M/4N
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M/N
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Question 46 of 60
46. Question
A radioactive element 23892X emits two α-particles and two β-particles to form an element Y. The mass and atomic numbers of Y will be
234 and 91.
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234 and 90.
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230 and 90.
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230 and 88.
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228 and 88.
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Question 47 of 60
47. Question
A radioactive isotope of thorium has a half-life of 24 days, calculate its decay constant.
2.89×10-5s-1
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1.20×10-1s-1
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1.93×10-4s-1
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2.00×10-5s-1
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3.34×10-7s-1
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Question 48 of 60
48. Question
4.6×10-41 J
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9.6×10-40 J
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2.9×10-33 J
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9.6×10-26 J
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2.9×10-19 J
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Question 49 of 60
49. Question
1.56×10-49 J
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5.11×10-19 J
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8.60×10-19 J
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1.21×10-18 J
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1.37×10-18 J
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Question 50 of 60
50. Question
The particle nature of light can be used to explain which of the following pairs of phenomena?
Compton effect and refraction
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Diffraction and photoelectric effect
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Photoelectric effect and polarization
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Reflection and diffraction
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Thermionic emission and Compton effect
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Question 51 of 60
51. Question
A car engine is rated 5000 h.p. Calculate its power in kilowatt. [1 h.p. = 746 watts]
3730000
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37300
Correct Incorrect Correct answer

3730
Correct Incorrect Correct answer

373
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37
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Question 52 of 60
52. Question
The function of a condenser in a slide projector is to
absorb and dissipate the heat from the light source
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collect and converge light onto the slide
Correct Incorrect Correct answer

focus sharp image on the screen.
Correct Incorrect Correct answer

make the image appear upright on the screen.
Correct Incorrect Correct answer

produce enlarged image on the screen.
Correct Incorrect Correct answer

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Question 53 of 60
53. Question
A compound microscope with objective and eyepiece lenses of focal lengths 4.0 cm. and 5.0 cm respectively is used to view an object. If the final image is formed at a distance Y from the eyepiece lens, express the distance of the first image from the eyepiece lens in terms of the given parameters.
5Y/Y-5
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5Y/5-Y
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Y-5/5Y
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5-Y/5Y
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4Y/Y-4
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Question 54 of 60
54. Question
In electroplating an iron spoon with gold in a voltammeter, the
electrolyte is made of iron salt solution.
Correct Incorrect Correct answer

Electrolyte is made of silver solution.
Correct Incorrect Correct answer

Gold is made the cathode
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spoon is made the anode
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spoon is made the cathode
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Question 55 of 60
55. Question
Which of the following components is not common to a d.c generator and an a.c generator?
Brush
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Commentator
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Copper coil
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Magnet
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Soft iron core
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Question 56 of 60
56. Question
The correct route of electricity transmission from the power station to the consumers is through
high tension cables, step up transformer and step down transformer.
Correct Incorrect Correct answer

Step down transformer, high tension cables and step up transformer.
Correct Incorrect Correct answer

step down transformer, step up transformer and high tension cables.
Correct Incorrect Correct answer

step up transformer, high tension cables and step down transformer.
Correct Incorrect Correct answer

step up transformer, step down transformer and high tension cables
Correct Incorrect Correct answer

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Question 57 of 60
57. Question
Machines
1. Make work to be done faster.
II. Multiply effort.
III. Make work to be done conveniently.
Which of the statements above is/are correct?
I only
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II only
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III only
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II and III only
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I, II and III
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Question 58 of 60
58. Question
When generating electricity from a dam, the following processes are involved:
I. The rotating dynamo produces electricity
II. Water flows out of the dam through a narrow opening
III. The turbine is rotated by the falling water.
Which of the processes stated above occur first and last respectively?
I and II
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I and III
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II and I
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II and III
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III and I
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Question 59 of 60
59. Question
A component of rockets is
fins
Correct Incorrect Correct answer

Gyroscope
Correct Incorrect Correct answer

radio antenna
Correct Incorrect Correct answer

solar panel
Correct Incorrect Correct answer

star tracker
Correct Incorrect Correct answer

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Question 60 of 60
60. Question
Information obtained from Nigeria Sat-1 is used for
communication.
Correct Incorrect Correct answer

distance curing of diseases.
Correct Incorrect Correct answer

Electronic commerce
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planning the location of telecommunication network.
Correct Incorrect Correct answer

Television broadcast.
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