P1 - Energy Transfers - Pendelum, Bungee Jumper

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8 Terms

1
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define thermal energy

energy associated with the temperature of an object

2
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what is the law of conservation of energy

Energy cannot be created or destroyed, only transferred usefully, stored, or dissipated

3
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what is a system

An object or group of objects

4
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what happens in a closed system

no energy can enter or leave

5
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what causes energy to be transffered to the thermal store

friction

6
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what does dissipated mean

Energy that is not usefully transferred ; it's spread out and lost/wasted

7
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how do we reduce unwanted energy transfers

by reducing friction

8
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what are ways to reduce friction

lubrication