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1.7 Energy, work and power

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Question 429

A student suggests several ways to transfer energy to a stationary block of copper resting on a table:

  1. Place it in contact with a hotter block of metal.
  2. Hammer it repeatedly.
  3. Shine a laser beam on it.

Which of these suggestions are correct?

A

1 and 2 only

B

1 and 3 only

C

2 and 3 only

D

1, 2, and 3

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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