Energy Flashcards

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1
Q

Describe what is meant by fossil fuel

A

Energy resources created millions of years ago

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2
Q

Name the greenhouse gas that is produced when fossil fuels burn

A

Carbon dioxide

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3
Q

State the unit do power

A

Watts

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4
Q

State the unit of energy that electricity companies use

A

Kilowatt or joules

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5
Q

State the law of conservation of energy

A

Energy can only be transferred

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6
Q

Name five types of energy store

A
Chemical energy store
Thermal energy store
Kinetic energy store
Gravitational potential energy store
Elastic energy store
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7
Q

State three ways that energy is transferred between stores

A

Electrical current
Radiation (light)
Waves (sound)
Heating

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8
Q

What does dissipation mean

A

Wasting energy

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9
Q

Name two ways to reduce dissipation in a car

A

Energy in the car can be transferred to thermal energy because of its surroundings. The energy in the chemical store transfers into the kinetic store because of contact and non-contact forces

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