Energy can be transferred usefully, stored or dissipated, but can never be created or destroyed
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When energy is transferred what happens?
Not all energy is transferred usefully into the store that we want it to go to. Some energy is dissipated
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What is energy dissipation?
A process in which energy is wasted because the energy is being stored in a way that isn't useful.
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Give an example of energy dissipation
A phone. When using a phone energy is usefully transferred from the chemical energy store of the battery in the phone however some energy is dissipated to the thermal energy store of the phone
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To calculate the rate of energy transfer what equation would you use?
Energy Transferred= Power x Time
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The efficency for any energy transfer can be worked out by using what equation
efficiency= Useful output energy transfer / Total input energy transfer
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Other cards in this set
Card 2
Front
When energy is transferred what happens?
Back
Not all energy is transferred usefully into the store that we want it to go to. Some energy is dissipated
Card 3
Front
What is energy dissipation?
Back
Card 4
Front
Give an example of energy dissipation
Back
Card 5
Front
To calculate the rate of energy transfer what equation would you use?
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