Chapter 7.3 -science Flashcards

1
Q

Turbines

A

Turbines: wheels that, when turned, drive electrical generators. Steam or water are often used to turn turbines.

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2
Q

Wind energy

A

Wind energy: a renewable energy derived from the wind (caused by uneven heating of the Earth and its oceans by the sun), for example by the use of wind turbines in a wind farm

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3
Q

Biomass:

A

material produced by living organisms

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4
Q

Ocean wave energy:

A

Ocean wave energy: a renewable energy created by converting the mechanical energy of ocean waves to electrical energy

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5
Q

Tidal energy

A

Tidal energy: a renewable energy that can be harvested from the tides in the ocean through the use of large underwater turbines placed in areas of high tidal movement

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6
Q

Geothermal:

A

Geothermal energy: heat energy transferred from rocks below the Earth’s surface

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7
Q

Hydro-electric

A

Hydro-electric: power produced by the energy of falling water

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8
Q

Nuclear energy:

A

Nuclear energy: the energy stored at the centre of atoms, the tiny particles that make up all substances. Nuclear energy can be released from the radioactive metals uranium or plutonium and transformed into electrical energy in a nuclear power station

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