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Work, Energy and Power Practice Questions - Page 3

Questions 21–30 of 38 · Page 3 of 4

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Questions

38

Solutions

All inline

Q21Which force does not work on a charged particle moving perpendicular to it?MediumSolve →Q22When a spring is stretched, its restoring force is an example of:MediumSolve →Q23The work-energy theorem states:MediumSolve →Q24Which is true about negative work?MediumSolve →Q25A body slides down a rough inclined plane. Which energy is lost?MediumSolve →Q26Which graph correctly represents potential energy vs displacement for a spring?MediumSolve →Q27Which is dimensionally correct?MediumSolve →Q28A car engine of 100 kW power can do how much work in 1 hour?MediumSolve →Q29If you lift an object vertically at constant speed, net work done by you is:MediumSolve →Q30A block is sliding on a rough horizontal surface with initial KE K. Work done by friction before it stops is:MediumSolve →

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