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1.7 Energy, work and power

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Question 55

An aircraft with a mass of 400 000 kg400\,000\text{ kg}400000 kg is flying at an altitude of 4000 m with a speed of 150 m/s.

What is the kinetic energy of the aircraft?

A

3.0×104 kJ3.0 \times 10^4\text{ kJ}3.0×104 kJ

B

4.5×106 kJ4.5 \times 10^6\text{ kJ}4.5×106 kJ

C

9.0×106 kJ9.0 \times 10^6\text{ kJ}9.0×106 kJ

D

1.6×107 kJ1.6 \times 10^7\text{ kJ}1.6×107 kJ

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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