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Work, Energy & Power
NEET Physics • 10 questions • Free on ExamBattle
Practice Questions
Q1
Work done by a force is maximum when the angle between force and displacement is:
- A. 90°
- B. 0°
- C. 45°
- D. 180°
Q2
The work-energy theorem states that the net work done on a body equals:
- A. Change in potential energy
- B. Change in kinetic energy
- C. Total mechanical energy
- D. Change in momentum
Q3
A perfectly inelastic collision is one where:
- A. KE is conserved
- B. Objects stick together
- C. Momentum is not conserved
- D. Objects bounce off elastically
Q4
The coefficient of restitution for a perfectly elastic collision is:
- A. 0
- B. 1
- C. 0.5
- D. >1
Q5
A 60 W bulb is used for 10 hours. The energy consumed is:
- A. 60 J
- B. 2.16 × 10⁶ J
- C. 600 J
- D. 0.6 kWh
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