NECO Physics past questions and answers are simply questions from previous exams, along with their correct solutions, used to help students prepare better. They give you a clear idea of how the exam is set and the types of questions you should expect.
When you study them, you not only understand Physics topics better, but you also learn how to answer questions correctly and manage your time in the exam. In short, they are a very useful guide for anyone who wants to do well in NECO Physics.
NECO physics past questions and answers
1. The unit of work is
A. Newton
B. Joule
C. Watt
D. Pascal
Answer: B
2. A body is said to be in equilibrium when it
A. Moves with constant acceleration
B. Has zero resultant force
C. Is at rest only
D. Moves in a straight line
Answer: B
3. Which of the following is a vector quantity?
A. Speed
B. Distance
C. Velocity
D. Energy
Answer: C
4. The force that opposes motion between two surfaces is called
A. Gravity
B. Friction
C. Tension
D. Pressure
Answer: B
5. The SI unit of pressure is
A. Pascal
B. Newton
C. Joule
D. Watt
Answer: A
6. Energy possessed by a moving object is
A. Potential energy
B. Heat energy
C. Kinetic energy
D. Light energy
Answer: C
7. The acceleration due to gravity on Earth is approximately
A. 9.8 m/s²
B. 10 m/s²
C. 8.9 m/s²
D. 7.8 m/s²
Answer: A
8. The instrument used to measure temperature is
A. Barometer
B. Thermometer
C. Hygrometer
D. Ammeter
Answer: B
9. The rate of doing work is called
A. Energy
B. Force
C. Power
D. Pressure
Answer: C
10. Which wave does not require a medium?
A. Sound wave
B. Water wave
C. Light wave
D. Mechanical wave
Answer: C
11. The unit of electric current is
A. Volt
B. Ampere
C. Ohm
D. Watt
Answer: B
12. The resistance of a conductor depends on
A. Length
B. Area
C. Material
D. All of the above
Answer: D
13. A device used to measure voltage is
A. Ammeter
B. Voltmeter
C. Galvanometer
D. Thermometer
Answer: B
14. The bending of light as it passes from one medium to another is
A. Reflection
B. Refraction
C. Diffraction
D. Dispersion
Answer: B
15. The image formed by a plane mirror is
A. Real
B. Inverted
C. Virtual
D. Diminished
Answer: C
16. The unit of frequency is
A. Hertz
B. Newton
C. Joule
D. Watt
Answer: A
17. The distance between two consecutive crests is called
A. Amplitude
B. Wavelength
C. Frequency
D. Velocity
Answer: B
18. The speed of light in vacuum is
A. 3 × 10⁸ m/s
B. 3 × 10⁶ m/s
C. 3 × 10⁴ m/s
D. 3 × 10² m/s
Answer: A
19. Which lens is used to correct short-sightedness?
A. Convex
B. Concave
C. Cylindrical
D. Plane
Answer: B
20. The turning effect of a force is called
A. Work
B. Energy
C. Torque
D. Pressure
Answer: C
NECO physics past questions and answers
21. The SI unit of mass is
A. Gram
B. Kilogram
C. Newton
D. Tonne
Answer: B
22. The motion of a body along a straight line is
A. Circular motion
B. Random motion
C. Linear motion
D. Oscillatory motion
Answer: C
23. Heat transfer without a medium is
A. Conduction
B. Convection
C. Radiation
D. Reflection
Answer: C
24. The boiling point of water is
A. 0°C
B. 50°C
C. 100°C
D. 200°C
Answer: C
25. Which gas is used in electric bulbs?
A. Oxygen
B. Nitrogen
C. Hydrogen
D. Carbon dioxide
Answer: B
26. The unit of electrical resistance is
A. Ohm
B. Volt
C. Ampere
D. Watt
Answer: A
27. Sound travels fastest in
A. Air
B. Water
C. Vacuum
D. Solid
Answer: D
28. A concave mirror forms a real image when the object is
A. At focus
B. Beyond focus
C. At infinity
D. Very close
Answer: B
29. The property of matter that resists change in motion is
A. Inertia
B. Density
C. Volume
D. Mass
Answer: A
30. The SI unit of energy is
A. Watt
B. Joule
C. Newton
D. Pascal
Answer: B
31. The process of converting solid directly to gas is
A. Evaporation
B. Condensation
C. Sublimation
D. Melting
Answer: C
32. The charge of an electron is
A. Positive
B. Neutral
C. Negative
D. Variable
Answer: C
33. The unit of power is
A. Watt
B. Joule
C. Newton
D. Volt
Answer: A
34. Which instrument measures pressure?
A. Barometer
B. Thermometer
C. Hygrometer
D. Ammeter
Answer: A
35. The force acting on a unit area is
A. Work
B. Pressure
C. Energy
D. Power
Answer: B
36. A body moving in a circle experiences
A. Linear force
B. Centripetal force
C. Frictional force
D. Gravitational force
Answer: B
37. The unit of momentum is
A. kg m/s
B. N/m
C. J/s
D. kg/m
Answer: A
38. The mirror used in shaving is
A. Convex
B. Concave
C. Plane
D. Cylindrical
Answer: B
39. The resistance decreases when length
A. Increases
B. Decreases
C. Doubles
D. Remains same
Answer: B
NECO physics past questions and answers
40. Which is not a form of energy?
A. Heat
B. Light
C. Force
D. Sound
Answer: C
41. The SI unit of density is
A. kg/m³
B. g/cm
C. kg/m
D. N/m
Answer: A
42. A body at rest has
A. Kinetic energy
B. Potential energy
C. Heat energy
D. Light energy
Answer: B
43. The frequency of a wave is the number of
A. Vibrations per second
B. Waves per meter
C. Cycles per hour
D. Motions per minute
Answer: A
44. The device used to convert electrical energy to mechanical energy is
A. Generator
B. Motor
C. Transformer
D. Battery
Answer: B
45. The SI unit of time is
A. Minute
B. Hour
C. Second
D. Day
Answer: C
46. The density of water is
A. 1000 kg/m³
B. 100 kg/m³
C. 10 kg/m³
D. 1 kg/m³
Answer: A
47. Which law states action and reaction are equal?
A. First law
B. Second law
C. Third law
D. Law of gravity
Answer: C
48. The unit of force is
A. Joule
B. Newton
C. Watt
D. Pascal
Answer: B
49. Which is a renewable energy source?
A. Coal
B. Oil
C. Solar
D. Gas
Answer: C
50. The bending of waves around obstacles is
A. Reflection
B. Refraction
C. Diffraction
D. Dispersion
Answer: C
51. The instrument used to measure humidity is
A. Hygrometer
B. Thermometer
C. Barometer
D. Ammeter
Answer: A
52. The SI unit of electric charge is
A. Coulomb
B. Ampere
C. Volt
D. Ohm
Answer: A
53. The distance covered per unit time is
A. Velocity
B. Speed
C. Acceleration
D. Displacement
Answer: B
54. The device used to step up voltage is
A. Motor
B. Transformer
C. Generator
D. Battery
Answer: B
55. Which of the following is a non-metal?
A. Iron
B. Copper
C. Oxygen
D. Aluminium
Answer: C
56. The SI unit of temperature is
A. Celsius
B. Kelvin
C. Fahrenheit
D. Joule
Answer: B
57. The energy stored in a stretched spring is
A. Kinetic energy
B. Chemical energy
C. Potential energy
D. Heat energy
Answer: C
58. The force of attraction between masses is
A. Magnetic
B. Electric
C. Gravitational
D. Frictional
Answer: C
59. The unit of voltage is
A. Volt
B. Ampere
C. Ohm
D. Watt
Answer: A
60. The law relating V, I, and R is
A. Newton’s law
B. Ohm’s law
C. Boyle’s law
D. Hooke’s law
Answer: B
61. A body starts from rest and accelerates uniformly at 3 m/s² for 5 seconds. What is its final velocity?
A. 10 m/s
B. 15 m/s
C. 20 m/s
D. 25 m/s
Answer: B (15 m/s)
62. A resistor of 6 Ω is connected to a 12 V battery. What is the current in the circuit?
A. 1 A
B. 2 A
C. 3 A
D. 4 A
Answer: B (2 A)
63. A wave has a frequency of 25 Hz and a wavelength of 4 m. What is the speed of the wave?
A. 50 m/s
B. 75 m/s
C. 100 m/s
D. 125 m/s
Answer: C (100 m/s)
64. A force of 15 N moves an object through a distance of 4 m in the direction of the force. What is the work done?
A. 30 J
B. 45 J
C. 60 J
D. 75 J
Answer: C (60 J)
65. A body of mass 10 kg is moving with a velocity of 5 m/s. What is its momentum?
A. 25 kg·m/s
B. 50 kg·m/s
C. 75 kg·m/s
D. 100 kg·m/s
Answer: B (50 kg·m/s)
NECO physics past questions and answers
1. Define force and state its unit.
Force is any push or pull that can change the state of rest or motion of a body. Its SI unit is Newton (N).
2. Explain inertia.
Inertia is the property of a body that makes it resist any change in its state of rest or uniform motion.
3. State Newton’s First Law of Motion.
A body remains at rest or in uniform motion unless acted upon by an external force.
4. Define work and give its formula.
Work is done when a force moves an object through a distance. Work = Force × Distance.
5. What is energy?
Energy is the ability to do work.
6. Define power.
Power is the rate at which work is done.
7. Explain velocity.
Velocity is the rate of change of displacement with time and has direction.
8. Define acceleration.
Acceleration is the rate of change of velocity with time.
9. What is density?
Density is mass per unit volume.
10. State Ohm’s Law.
The current through a conductor is directly proportional to the voltage across it at constant temperature.
11. Define pressure.
Pressure is force per unit area.
12. What is reflection of light?
Reflection is the bouncing back of light when it hits a surface.
13. Define refraction.
Refraction is the bending of light when it passes from one medium to another.
14. What is a wave?
A wave is a disturbance that transfers energy from one place to another.
15. Define frequency.
Frequency is the number of vibrations per second.
16. What is current?
Current is the flow of electric charge.
17. Define resistance.
Resistance is the opposition to the flow of current.
18. What is heat?
Heat is a form of energy transferred due to temperature difference.
19. Define momentum.
Momentum is the product of mass and velocity.
20. State the law of conservation of energy.
Energy cannot be created or destroyed but can be transformed from one form to another.