- Amal Augustine
- December 19, 2025
Kinetic and Potential Energy MCQs Explained: Power-Packed Physics Questions That Build Conceptual Clarity
Understanding kinetic and potential energy MCQs is essential for mastering core physics concepts tested in competitive exams like NEET, JEE, and state board exams. These kinetic and potential energy mcqs questions not only assess formula application but also evaluate conceptual clarity in areas such as energy conservation, collisions, circular motion, equilibrium, and work–energy relationships. By solving this kinetic and potential energy mcqs carefully framed multiple-choice questions, aspirants learn how energy depends on mass, velocity, position, and force interactions.
Kinetic and potential energy MCQs test how energy transforms between motion and position in real physical systems, requiring students to connect mathematical formulas with physical intuition. Many kinetic and potential energy mcqs questions combine these two forms of energy through conservation laws, especially in situations involving falling bodies, circular motion, collisions, and oscillatory systems.
This curated set of kinetic and potential energy MCQs strengthens problem-solving skills and helps students confidently tackle numericals involving momentum, centripetal force, elastic and inelastic collisions, and stable equilibrium.
Kinetic and Potential Energy MCQs (With Answers)
1. A 500 kg car takes a round turn of radius 50 m with a velocity of 36 kmph. The centripetal force acting on the car is
A) 250 N
B) 500 N
C) 750 N
D) 1000 N
Answer-d
2. When the mass and speed of the body are doubled, the kinetic energy of the body
A) Becomes double
B) Becomes four times
C) Becomes eight times
D) Remains unchanged
Answer-c
3. A stationary object breaks into two pieces. If velocities of masses 6 kg and 8 kg are 8 m/s and 6 m/s respectively, the kinetic energy of A is
A) 48 J
B) 192 J
C) 24 J
D) 288 J
Answer-b
4. Shape of the graph between speed and kinetic energy of a body is
A) Straight line
B) Hyperbola
C) Parabola
D) Exponential
Answer-c
5. Momentum is numerically equal to kinetic energy. The velocity is
A) 1 m/s
B) 2 m/s
C) 3 m/s
D) 4 m/s
Answer-b
6. Kinetic energy of an electron accelerated through 100 V is
A) 6.6×10⁻³⁵ J
B) 1.16×10⁻¹⁷ J
C) 418.6 J
D) 1.6×10⁻¹⁷ J
Answer-d
7. Correct statement about KE and momentum
A) KE can change without changing momentum
B) KE cannot change without momentum
C) Momentum cannot change without KE
D) Body cannot have energy without momentum
Answer-a
8. KE of a light body and heavy body is same. Correct statement
A) High velocity body has more momentum
B) Heavy body has greater momentum
C) Both same
D) Light body has more momentum
Answer-b
9. Two bodies collide and stick together. Correct statement
A) KE conserved (inelastic)
B) KE conserved (elastic)
C) Momentum conserved (inelastic)
D) Momentum conserved (elastic)
Answer-c
10. Potential energy increases if work is done
A) Upon system by non-conservative force
B) By system against conservative force
C) By system against non-conservative force
D) Upon system by conservative force
Answer-b
11. V(x) = x² − 3x. Equilibrium position
A) 1.5 m
B) 2 m
C) 3 m
D) 1 m
Answer-a
12. Speed vs kinetic energy graph is
A) Parabola
B) Ellipse
C) Straight line (+ slope)
D) Straight line (− slope)
Answer-a
13. Inelastic collision
A) KE conserved
B) PE conserved
C) Momentum not conserved
D) Momentum conserved
Answer-d
14. Momentum = kinetic energy. Velocity is
A) 2 m/s
B) √2 m/s
C) 1 m/s
D) 0.2 m/s
Answer-a
15. Same KE → momentum maximum for
A) Electron
B) Proton
C) Deuteron
D) α-particle
Answer-d
16. U = A − Bx² → force ∝
A) Constant
B) x
C) x²
D) 1/x
Answer-b
17. Constant power → constant
A) Speed
B) Acceleration
C) KE
D) Rate of change of KE
Answer-d
18. Stable equilibrium has
A) Max PE
B) Min PE
C) Min KE
D) Max KE
Answer-b
19. 5 kg falls from 30 m. Heat produced
A) 1400 cal
B) 700 cal
C) 350 cal
D) 175 cal
Answer-c
20. KE of body with m = 2 kg, p = 2 Ns
A) 1 J
B) 2 J
C) 3 J
D) 4 J
Answer-a
21. Uniform circular motion → unchanged
A) Velocity
B) Acceleration
C) Direction of velocity
D) Kinetic energy
Answer-d
22. PE of molecule increases at surface because
A) Higher gravitational PE
B) Repulsive force
C) Work against attraction of molecules
D) Higher temperature
Answer-c
23. Gas expands 0.25 m³ at constant pressure 10 N/m². Work done
A) 250 N
B) 250 W
C) 250 J
D) 2.5 erg
Answer-c
24. PE of surface molecule is
A) Zero
B) Lesser
C) Equal
D) Greater
Answer-d
25. KE under constant force ∝
A) m
B) √m
C) 1/√m
D) Independent of m
Answer-d
26. KE = 4 × momentum → velocity
A) 2 m/s
B) 4 m/s
C) 8 m/s
D) 16 m/s
Answer-c
27. KE gain = 1 J, displacement = 0.4 m → Fx
A) 1.5 N
B) 2.5 N
C) 3.5 N
D) 4.5 N
Answer-b
28. Freely moving particle has
A) KE always > 0
B) PE > 0, KE < 0
C) PE < 0, KE > 0
D) PE = 0, KE < 0
Answer-a
29. Velocity at same height while falling
A) 2u
B) −u
C) u
D) −2u
Answer-b
30. Man jumps into trolley → initial velocity
A) 6 m/s
B) 10 m/s
C) 5 m/s
D) 3 m/s
Answer-a
Conclusion
Solving kinetic and potential energy MCQs builds a deep understanding of how energy behaves in motion, collisions, circular paths, and equilibrium conditions. These kinetic and potential energy mcqs questions highlight the distinction between conserved and non-conserved quantities, clarify the role of mass and velocity in energy relations, and strengthen intuition about real-world systems. Mastery of such kinetic and potential energy mcqs ,numericals improves accuracy, speed, and conceptual confidence—making them indispensable for physics exam success and applied problem-solving.
By solving kinetic and potential energy MCQs, aspirants learn to distinguish between situations where momentum is conserved but kinetic energy is not, and cases where both quantities remain conserved. This distinction is crucial in collision-based problems frequently asked in competitive exams.
Kinetic and potential energy MCQs also strengthen graphical interpretation skills, as students relate parabolic, linear, or constant relationships between energy, displacement, and velocity. These kinetic and potential energy mcqs questions train candidates to extract physical meaning from equations rather than relying on memorization.
Amal Augustine is the founder of ExQuizMe, a dynamic learning and quiz platform built to make education engaging, competitive, and fun. A passionate learner and an academic achiever, Amal completed his schooling at Government HSS Manjapra, graduating with 92.5% in Computer Science. He later earned his degree from St. Stephen’s College, University of Delhi, one of India’s most prestigious arts and science institutions.
Currently, Amal is pursuing his Master’s degree at National Sun Yat-sen University, Taiwan, where he continues to deepen his interest in research and technology. Throughout his school and college years, he won 50+ national-level interschool and collegiate quiz competitions, was
Beyond academics, Amal Augustine is an avid reader of science journals, a dedicated research student, and a technology enthusiast who loves programming and exploring the world of Computer Science. Through ExQuizMe, he aims to make learning accessible, enjoyable, and empowering for students across the globe.