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1.7.1a Energy stores and energy transfers

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Question 9

An object, initially at rest, is dropped from a height of 15.0 m. The change in gravitational potential energy when it falls to the ground is 750 J.

The frictional forces are negligible.

What is its speed when it hits the ground?

A

5.10 m s−15.10\text{ m s}^{-1}5.10 m s−1

B

17.2 m s−117.2\text{ m s}^{-1}17.2 m s−1

C

50.0 m s−150.0\text{ m s}^{-1}50.0 m s−1

D

294 m s−1294\text{ m s}^{-1}294 m s−1

Markscheme

1.7.1a Energy stores and energy transfers Questions

  1. IGCSE
  2. /Physics
  3. /1.7.1a Energy stores and energy transfers

229 exam-style questions on CIE IGCSE Physics 1.7.1a Energy stores and energy transfers. Each one has a worked solution and a mark scheme showing where the marks go.

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