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1.7 Energy, work and power

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Question 336

Which statement is not correct?

A

impulse=force×time duration of the force\text{impulse} = \text{force} \times \text{time duration of the force}impulse=force×time duration of the force

B

kinetic energy=mass×velocity2\text{kinetic energy} = \text{mass} \times \text{velocity}^2kinetic energy=mass×velocity2

C

momentum=mass×velocity\text{momentum} = \text{mass} \times \text{velocity}momentum=mass×velocity

D

work done=force×distance moved in the direction of the force\text{work done} = \text{force} \times \text{distance moved in the direction of the force}work done=force×distance moved in the direction of the force

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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