# P2 3.2: Gravitational potential energy.

All information was taken directly from the AQA revision guide with only the key points from P2 3.2.

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• Created by: JSpencer
• Created on: 07-03-16 08:46
What is gravitational potential energy?
Energy stored in an object because of it's position in the Earth's gravitational field.
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What happens when a object moves directly upwards?
It gains gravitational potential energy equal to the work done on it byt he lifting force.
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What is the change in gravitational potential energy equation?
Ep = m x g x h
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What does 'Ep' stand for? Units?
Change in gravitational potential energy in Joules, J
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What does 'm' stand for? Units?
Mass in kilograms, kg
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What does 'g' stand for? Units?
Gravitational field strength in newtons per kilograms, N/kg
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What does 'h' stand for? Units?
Change in height in metres, m
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What is Power?
Rate of transfer of energy.
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What is the power equation?
P = E divided by t
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What does 'P' stand for? Units?
Power in watts, W
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What does 'E' stand for? Units?
Energy in Joules, J
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What does 't' stand for? Units?
Time in seconds, s
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## Other cards in this set

### Card 2

#### Front

What happens when a object moves directly upwards?

#### Back

It gains gravitational potential energy equal to the work done on it byt he lifting force.

### Card 3

#### Front

What is the change in gravitational potential energy equation?

### Card 4

#### Front

What does 'Ep' stand for? Units?

### Card 5

#### Front

What does 'm' stand for? Units?