P6.1 Energy Revision Cards

What are the 5 main energy stores?
Chemical, Thermal, Kinetic, Gravitational Potential and Elastic Potential
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What is meant by conservation of energy?
No energy is lost or gained. No energy can be created or destroyed.
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How is power calculated?
power (w) = work done/ time
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How is Gravitational Potential energy calculated?
GPE = mass (kg) x gravitational field strength ( n / kg) x height (m)
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How is kinetic energy calculated?
Ek = 0.5 x mass (kg) X speed (m/s) *squared*
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What is the unit for energy?
Joules (J)
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What is the difference between a non-renewable and renewable energy resource?
Renewable resources will not run out whereas non-renewable resources will.
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What makes an energy resource reliable?
The ability for an energy resource to provide constant and expected levels of energy
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What is produced by coal, oil and gas power stations?
They generate electricity (whilst also producing CO2 emissions and lots of pollution).
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How is efficiency calculated?
efficiency = useful power output / total power output
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If a material has a higher thermal conductivity what does this mean?
1. It can conduct heat easily and quickly. 2. It is dense which makes it easier for the heat to conduct through it.
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Other cards in this set

Card 2

Front

What is meant by conservation of energy?

Back

No energy is lost or gained. No energy can be created or destroyed.

Card 3

Front

How is power calculated?

Back

Preview of the front of card 3

Card 4

Front

How is Gravitational Potential energy calculated?

Back

Preview of the front of card 4

Card 5

Front

How is kinetic energy calculated?

Back

Preview of the front of card 5
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