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PRO PHYSICS MCQS WITH ANSWERS
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Physics Pro: Mastering Concepts with MCQs and Solutions1. What is the SI unit of force? A) Newton (N) B) Joule (J) C) Watt (W) D) Kilogram (kg)
Answer: A) Newton (N)
2. Which of the following is an example of a vector quantity? A) Temperature B) Speed C)
Distance D) Velocity Answer: D) Velocity
3. What is the formula for calculating kinetic energy? A) ��=12��2KE=21mv2 B)
��=��ℎKE=mgh C) ��=��KE=Fd D) ��=���KE=tmv Answer:
A) ��=12��2KE=21mv2
4. According to Newton's first law of motion, an object will remain at rest or in uniform motion in a
straight line unless acted upon by a(n): A) Unbalanced force B) Balanced force C) External force
D) Gravitational force Answer: A) Unbalanced force
5. Which of the following statements best describes the law of conservation of energy? A) Energy
can neither be created nor destroyed, only transferred or transformed. B) Energy can be created
but not destroyed. C) Energy can be destroyed but not created. D) Energy can only be transferred
but not transformed. Answer: A) Energy can neither be created nor destroyed, only
transferred or transformed.
6. What is the acceleration due to gravity near the surface of the Earth? A) 9.8 m/s^2 B) 6.67 x 10^-
11 m^3/kg/s^2 C) 3 x 10^8 m/s^2 D) 1.6 m/s Answer: A) 9.8 m/s^2
7. Which of the following is true about an object in equilibrium? A) Its velocity is zero. B) Its
acceleration is zero. C) Its net force is zero. D) All of the above Answer: D) All of the above
8. What is the SI unit of electric charge? A) Coulomb (C) B) Ampere (A) C) Ohm (Ω) D) Volt (V)
Answer: A) Coulomb (C)
9. The bending of light as it passes from one medium to another with different refractive indices is
called: A) Diffraction B) Dispersion C) Reflection D) Refraction Answer: D) Refraction
10. Which of the following statements about magnetic fields is true? A) Magnetic field lines only
exist inside a magnet. B) Magnetic field lines always point away from the north pole of a
magnet. C) Magnetic field lines never intersect. D) Magnetic field lines are only influenced by
electric charges. Answer: C) Magnetic field lines never intersect.
11. What is the SI unit of power? A) Joule (J) B) Watt (W) C) Newton (N) D) Ampere (A) Answer:
B) Watt (W)
12. Which of the following is true about the conservation of momentum? A) Momentum is
conserved only in elastic collisions. B) Momentum is conserved only in inelastic collisions. C)
Momentum is conserved in both elastic and inelastic collisions. D) Momentum is conserved only
in perfectly elastic collisions. Answer: C) Momentum is conserved in both elastic and
inelastic collisions.
13. What is the unit of capacitance? A) Ohm (Ω) B) Farad (F) C) Tesla (T) D) Weber (Wb) Answer:
B) Farad (F)
14. The resistance of a conductor depends on which of the following? A) Length of the conductor B)
Temperature of the conductor C) Material of the conductor D) All of the above Answer: D) All
of the above
15. Which of the following is a scalar quantity? A) Velocity B) Force C) Mass D) Acceleration
Answer: C) Mass
16. What is the law that states that the current flowing through a conductor is directly proportional to
the voltage across it, provided the temperature remains constant? A) Ohm's Law B) Newton's
Law C) Coulomb's Law D) Kepler's Law Answer: A) Ohm's Law
, Physics Pro: Mastering Concepts with MCQs and Solutions
17. What is the SI unit of frequency? A) Hertz (Hz) B) Newton (N) C) Pascal (Pa) D) Coulomb (C)
Answer: A) Hertz (Hz)
18. Which of the following is true about nuclear fusion? A) It releases energy by combining atomic
nuclei. B) It releases energy by splitting atomic nuclei. C) It only occurs in stars. D) It is a
naturally occurring process on Earth. Answer: A) It releases energy by combining atomic
nuclei.
19. What is the SI unit of magnetic flux? A) Weber (Wb) B) Tesla (T) C) Henry (H) D) Gauss (G)
Answer: A) Weber (Wb)
20. According to the first law of thermodynamics, what happens to the total energy of an isolated
system? A) It decreases over time. B) It remains constant. C) It increases over time. D) It
fluctuates unpredictably. Answer: B) It remains constant.
21. What is the unit of electric potential difference? A) Ampere (A) B) Volt (V) C) Ohm (Ω) D)
Coulomb (C) Answer: B) Volt (V)
22. Which of the following is NOT a fundamental force in nature? A) Gravity B) Electromagnetism
C) Nuclear force D) Frictional force Answer: D) Frictional force
23. What is the formula for calculating work done by a constant force? A) �=�⋅�W=F⋅d B)
�=�⋅�W=F⋅t C) �=��W=dF D) �=�⋅Δ�W=F⋅Δx Answer: D)
�=�⋅Δ�W=F⋅Δx
24. Which of the following quantities is a measure of the amount of matter in an object? A) Weight
B) Volume C) Density D) Mass Answer: D) Mass
25. What is the principle that states that the total electric charge in a closed system is constant? A)
Gauss's Law B) Coulomb's Law C) Conservation of Charge D) Ampere's Law Answer: C)
Conservation of Charge
26. The phenomenon of an object continuing its state of motion or rest unless acted upon by an
external force is described by which of Newton's laws? A) First law B) Second law C) Third law
D) None of the above Answer: A) First law
27. Which of the following statements is true about sound waves? A) Sound waves cannot travel
through solids. B) Sound waves are transverse waves. C) Sound waves require a medium to
travel. D) Sound waves travel faster in a vacuum. Answer: C) Sound waves require a medium
to travel.
28. What is the SI unit of magnetic field strength? A) Weber (Wb) B) Tesla (T) C) Gauss (G) D)
Henry (H) Answer: B) Tesla (T)
29. The phenomenon of the change in direction of a wave as it passes through a different medium is
called: A) Diffraction B) Dispersion C) Reflection D) Refraction Answer: D) Refraction
30. According to the second law of thermodynamics, which of the following processes is favored?
A) A process that decreases the entropy of the universe B) A process that increases the entropy
of the universe C) A process that maintains constant entropy of the universe D) A process that
has no effect on the entropy of the universe Answer: B) A process that increases the entropy
of the universe
31. What is the SI unit of frequency? A) Hertz (Hz) B) Newton (N) C) Pascal (Pa) D) Coulomb (C)
Answer: A) Hertz (Hz)
32. Which of the following is an example of a non-conservative force? A) Gravity B) Friction C)
Spring force D) Electric force Answer: B) Friction
33. What is the SI unit of angular velocity? A) Radian per second (rad/s) B) Meter per second (m/s)
C) Newton (N) D) Joule (J) Answer: A) Radian per second (rad/s)
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