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1.7 Energy, work and power

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Question 357

A metal block of weight 60 N falls a vertical distance of 8.0 m from rest.

What is the change in the gravitational potential energy store of the metal block?

A

decrease of 7.5 J7.5\text{ J}7.5 J

B

increase of 7.5 J7.5\text{ J}7.5 J

C

decrease of 480 J480\text{ J}480 J

D

increase of 480 J480\text{ J}480 J

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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