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CAIE A-Level Physics AS 5.2.1 W Fs the Formula Ep Mg H for Gravitational Potential Energy Changes in Questions

Calculate work done and changes in gravitational potential energy using W = Fs and ΔEP = mgΔh.

Syllabus
2028–2030
Course
Physics 9702
Level
AS

Exam points

  • Calculate work done and changes in gravitational potential energy using W = Fs and ΔEP = mgΔh.

CAIE A-Level Physics AS 5.2.1 W Fs the Formula Ep Mg H for Gravitational Potential Energy Changes in Questions question 1

[Maximum number: 1]

The change in gravitational potential energy ΔE\Delta E of an object of mass m when moving through height Δh\Delta h near the surface of the Earth is given by the equation shown.

ΔE=mgΔh\Delta E=m g \Delta h

Which equation is needed as part of the derivation of this expression?

A

kinetic energy =12×=\frac{1}{2} \times mass ×( speed )2\times(\text { speed })^{2}

B

moment = force × distance

C

weight = mass × acceleration of free fall

D

work done = power × time

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