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1.7 Energy, work and power

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Question 188

Which of the following movements will require the greatest amount of work to be done?

A

a force of 20 N20\text{ N}20 N moving an object a distance of 4.0 m4.0\text{ m}4.0 m

B

a force of 15 N15\text{ N}15 N moving an object a distance of 6.0 m6.0\text{ m}6.0 m

C

a force of 30 N30\text{ N}30 N moving an object a distance of 2.5 m2.5\text{ m}2.5 m

D

a force of 25 N25\text{ N}25 N moving an object a distance of 3.5 m3.5\text{ m}3.5 m

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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