Kinetic Energy — JEE Main Physics MCQs with Solutions
Free JEE Main Physics Kinetic Energy MCQs with step-by-step solutions (2 questions). Part of Work, Power and Energy. Practise online on Prepizo — no login needed.
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Questions with solutions
Q1 — Kinetic Energy · easy · numerical
A 0.5 kg ball is dropped from a height of 20 m. Its kinetic energy just before hitting the ground is:
A. 50 J
B. 100 J ✓ Correct
C. 10 J
D. 200 J
Solution: KE = mgh = 0.5×10×20 = 100 J (all PE converts on a free fall).
Q2 — Kinetic Energy · medium · numerical
A 10 g bullet travels at 400 m/s. Its kinetic energy is:
A. 400 J
B. 1600 J
C. 800 J ✓ Correct
D. 80 J
Solution: KE = ½×0.01×400² = ½×0.01×160000 = 800 J.