Gravitational PE (E = m g h)
AQA GCSE Physics calculation · part of the free Calculation Climb
The energy stored when you lift something: E = m g h (mass × gravitational field strength × height). Joules.
How to do it — step by step
- E = m g h.
- mass in kg, g ≈ 9.8 N/kg, height in m.
Worked example
Lift a 2 kg book 1.5 m, g = 9.8 N/kg.
E = 2 × 9.8 × 1.5 = 29.4 J
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