Potential Energy — JEE Main Physics MCQs with Solutions
Free JEE Main Physics Potential 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 — Potential Energy · easy · numerical
A 50 kg person climbs 40 stairs, each 0.25 m high. The gain in potential energy is:
A. 5000 J ✓ Correct
B. 2500 J
C. 500 J
D. 10000 J
Solution: h = 40×0.25 = 10 m; ΔU = 50×10×10 = 5000 J.
Q2 — Potential Energy · medium · numerical
A pump raises 100 kg of water to an overhead tank at a height of 10 m. The potential energy given to the water is:
A. 1 kJ
B. 100 kJ
C. 10 J
D. 10 kJ ✓ Correct
Solution: ΔU = mgh = 100×10×10 = 10⁴ J = 10 kJ.