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1.7.4 Power

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Question 68

Four hikers of equal weight start at the level of a lake and climb to a scenic lookout platform at the top of a cliff. Each hiker takes a different route to reach the platform. The routes and the times taken by each hiker are described below:

  • Hiker A: runs up a direct flight of stairs in 12 s
  • Hiker B: walks up a long, gentle ramp in 25 s
  • Hiker C: climbs a vertical ladder in 18 s
  • Hiker D: jogs up a winding dirt path in 15 s

Which hiker develops the greatest average power against gravity during the climb?

A

Hiker A

B

Hiker B

C

Hiker C

D

Hiker D

Markscheme

1.7.4 Power Questions

  1. IGCSE
  2. /Physics
  3. /1.7.4 Power

95 exam-style questions on CIE IGCSE Physics 1.7.4 Power. Each one has a worked solution and a mark scheme showing where the marks go.

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