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1.7 Energy, work and power

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Question 58

An object is thrown vertically upwards away from the Earth's surface (ignore air resistance). What happens to the gravitational potential energy and to the kinetic energy of the object as it rises?

A

Gravitational potential energy decreases; kinetic energy decreases

B

Gravitational potential energy decreases; kinetic energy increases

C

Gravitational potential energy increases; kinetic energy decreases

D

Gravitational potential energy increases; kinetic energy increases

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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