Conservation of energy applies to all energy changes.
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Card 8
Front
A closed system is an isolated system in which no energy transfers take place out of or into the energy stores of the system.
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Card 9
Front
P1.3 - Energy and work
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Card 10
Front
energy transferred = work done
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Card 11
Front
Work done to overcome friction is transferred as energy to the thermal energy stores of the objects that rub together and to the surroundings.
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Card 12
Front
Gravitational potential energy Ep is the transfer of energy from the chemical energy store in the muscles to the gravitational energy store of the object.
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Card 13
Front
The gravitational potential store of an object increases when it moves up and decreases when it moves down.
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Card 14
Front
P1.4 - Gravitational potential energy stores (2)
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Card 15
Front
The gravitational field strength at the surface of the Moon is less than on the Earth (about a sixth).
