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1.7 Energy, work and power

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Question 378

To calculate the gravitational potential energy gained by a block, the mass of the block must be known.

What else needs to be known to calculate this gravitational potential energy?

A

The gravitational field strength is needed; The vertical height is needed

B

The gravitational field strength is needed; The vertical height is not needed

C

The gravitational field strength is not needed; The vertical height is needed

D

The gravitational field strength is not needed; The vertical height is not needed

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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