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1.7 Energy, work and power

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Question 431

To calculate the kinetic energy of a moving car, the mass of the car must be known.

What else needs to be known to calculate its kinetic energy?

The speed of the carThe direction in which the car is traveling
A✓\checkmark✓✓\checkmark✓
B✓\checkmark✓×\times×
C×\times×✓\checkmark✓
D×\times××\times×

Key:

  • ✓\checkmark✓ = needed
  • ×\times× = not needed
A

Row A

B

Row B

C

Row C

D

Row 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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