Energy Flashcards

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1
Q

What is energy and electricity measured in?

A

Energy-Joules

Electricity-Watts

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2
Q

What are the uses for energy?

A

To power lights, stoves and machines.

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3
Q

Name 3 types of energy.

A

Solar energy, wave energy and geothermal energy.

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4
Q

What’s the difference between non-renewable energy and renewable energy?

A

You can’t get non-renewable energy back once you have used it, but renewable energy (e.g. solar energy) can be used forever.

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5
Q

What are the 3 fossil fuels?

A

Oil, natural gas and coal.

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6
Q

How are fossil fuels created?

A

When a plant dies and decomposes, leaves and dirt come in top of it, until the immense heat and pressure turn it into coal, oil or natural gas.

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7
Q

How is a fossil fuel used?

A

Once either coal, oil or natural gas has been formed and found, it is burned to create energy.

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8
Q

Why are fossil fuels a bad source of energy?

A

They contribute to global warming.

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9
Q

Why are energy sources such as solar power and wind power better for us than fossil fuels?

A

Because they are renewable and environmentally friendly.

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10
Q

Name 5 energy stores.

A

Electrical energy, thermal energy, wave energy, light energy and kinetic.

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