Physics P1 2.2 Conservation of energy.

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What is it not possible to do to energy?
Create or destroy it.
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Energy cannot be created or destroyed but what is it possible to do?
Transfer it from one form to another or from one place to another.
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What happens to the total amount of energy?
It always stays the same.
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In all energy transfers the total amount of energy always remains the same, what is this called?
The conservation of energy.
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How does the conservation of energy apply when an object falls?
Gravitational potential energy is transferred to kinetic energy.
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How does the conservation of energy apply when an elastic band is stretched?
Chemical energy is transferred to elastic potential energy.
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How does the conservation of energy apply in a solar cell?
Light energy is transferred to electrical energy.
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How does the conservation of energy apply in a swinging pendulum?
Gravitational potential energy is transferred to kinetic energy and back again as it swings.
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What energy transfers take place when you turn on a torch?
Chemical to electrical to light and transfer by heating.
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In terms of energy, what happens when you burn a fuel?
Chemical energy in the fuel is transferred to the surroundings, which get warmer.
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*CONSERVATION OF ENERGY IS AN EXTREMELY IMPORTANT IDEA IN PHYSICS SO IT WILL OFTEN COME UP IN EXAM QUESTIONS**
**LOOK UP DIAGRAM OF A PENDULUM IN MOTION**
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Card 2

Front

Energy cannot be created or destroyed but what is it possible to do?

Back

Transfer it from one form to another or from one place to another.

Card 3

Front

What happens to the total amount of energy?

Back

Preview of the front of card 3

Card 4

Front

In all energy transfers the total amount of energy always remains the same, what is this called?

Back

Preview of the front of card 4

Card 5

Front

How does the conservation of energy apply when an object falls?

Back

Preview of the front of card 5
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