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1.7 Energy, work and power

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Question 340

A skydiver jumps from a hovering helicopter. She free-falls for 15 seconds before deploying her parachute. At which point during her descent is her kinetic energy the greatest?

A

immediately after jumping from the helicopter.

B

immediately before she deploys her parachute.

C

immediately after her parachute has fully deployed.

D

just before she touches the ground.

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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