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1.7 Energy, work and power

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Question 433

A student uses an elastic catapult to launch a ball horizontally across a room. As the catapult is released, what happens to the elastic potential energy stored in the stretched band?

A

by mechanical working | kinetic energy

B

by mechanical working | gravitational potential energy

C

by heating | kinetic energy

D

by heating | gravitational potential energy

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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