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1.7 Energy, work and power

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Question 190

To calculate the work done by a constant force, the magnitude of the force must be known.

What else needs to be known to calculate the work done?

Distance that the force moves the object in the direction of the forceTime for which the force acts on the object
A✓\checkmark✓✓\checkmark✓
B✓\checkmark✓×\times×
C×\times×✓\checkmark✓
D×\times××\times×

where ✓\checkmark✓ = needed, ×\times× = not needed.

A

A

B

B

C

C

D

D

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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