page 34 physics efficiency of machines

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  • Created by: Waldron16
  • Created on: 17-11-13 19:13
Give the energy transfers of the device batteries.
chemical energy- electrical and heat energy
1 of 5
Give the energy transfers of firing a bow and arrow.
Elastic potential energy-kinetic and heat energy
2 of 5
What is the most wasted energy in a device
heat
3 of 5
What units should efficiency be given in.
percentage or decimal
4 of 5
What makes a device efficient?
The less energy that is "wasted", the more efficient the device is said to be.
5 of 5

Other cards in this set

Card 2

Front

Give the energy transfers of firing a bow and arrow.

Back

Elastic potential energy-kinetic and heat energy

Card 3

Front

What is the most wasted energy in a device

Back

Preview of the front of card 3

Card 4

Front

What units should efficiency be given in.

Back

Preview of the front of card 4

Card 5

Front

What makes a device efficient?

Back

Preview of the front of card 5

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