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1.7 Energy, work and power

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Question 48

An object has kinetic energy of 350 J.

A constant resultant force of 210 N is applied in the direction of its motion through a distance of 8 m.

What is the final kinetic energy of the object?

A

560 J560\text{ J}560 J

B

1330 J1330\text{ J}1330 J

C

2030 J2030\text{ J}2030 J

D

2800 J2800\text{ J}2800 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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