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1.7 Energy, work and power

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Question 8

An object has kinetic energy of 350 J.

A constant resultant force of 240 N is applied in the direction of its motion through a distance of 15 m.

What is the final kinetic energy of the object?

A

590 J590\text{ J}590 J

B

3250 J3250\text{ J}3250 J

C

3600 J3600\text{ J}3600 J

D

3950 J3950\text{ J}3950 J

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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