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1.7 Energy, work and power

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Question 196

Which of the following situations describes a case where no mechanical work is done and no energy is transferred?

A

A roller coaster car climbing a steep hill

B

A massive concrete block sitting stationary on a flat platform

C

A runner accelerating from rest along a track

D

A parachuted skydiver descending through the air at constant speed

Markscheme

1.7 Energy, work and power Questions

  1. IGCSE
  2. /Physics
  3. /1.7 Energy, work and power

533 exam-style questions on CIE IGCSE Physics 1.7 Energy, work and power, covering 1.7.1a Energy stores and energy transfers, 1.7.1b Conservation of energy, 1.7.1c Kinetic and gravitational potential energy, 1.7.2 Work done, 1.7.3 Energy resources, 1.7.3a Energy resources and electricity generation, 1.7.3b Nuclear fusion as an energy source, 1.7.3c Efficiency of energy transfer, and 1.7.4 Power. Each one has a worked solution and a mark scheme showing where the marks go.

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