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Physics > P3 > Flashcards

P3 Flashcards

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1
Q

2 types of energy resources

A

Non-renewable
Renewable

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2
Q

Renewable definition -

A

Unlimited supply of energy from natural resources

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3
Q

Renewable advantages

A

Never run out
Environmentally friendly as don’t produce greenhouse gases or acid rain
Does not create radioactive waste products

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4
Q

Renewable disadvantages

A

Don’t supply as much energy
Unreliable
Expensive

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5
Q

What are wind turbines?

A

Electricity generator on top of tall tower which turns to produce electricity

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6
Q

Wind turbine disadvantage

A

Noisy
Unsightly

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7
Q

How does wave energy work

A

Water turns a floating generator

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8
Q

How does hydroelectric power produce energy ?

A

Generators turned by water running downhill

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9
Q

How does tidal power produce energy ?

A

Traps high tides and use them to turn generators

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10
Q

How does geothermal power produce energy ? + method

A

Energy is released by radioactive substances in the earth

Water pumped into hot rocks underground which produces steam to drive turbine at the earths surface that generate electricity

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11
Q

How does biofuel power produce energy ?

A

Fuel taken form living or recently living organisms

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12
Q

Solar cell panels

A

Sunlight absorbed and used to make electricity

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13
Q

Solar heating panel

A

Sun light is used to heat water

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14
Q

Solar energy disadvantages

A

Expensive
Unreliable
Large area needed

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15
Q

Hydroelectric dams disadvantage

A

Could result in flooding

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16
Q

Tidal wave power disadvantage

A

Affects habitats of creatures and plants

17
Q

Renewable cost to install

A

Expensive

18
Q

Renewable cost to run

A

Cheaper

19
Q

Nonrenewable cost to install

A

Cheap

20
Q

Nonrenewable cost to run

A

More expensive

21
Q

Nonrenewable energy definition

A

Limited supply of energy resources

22
Q

Two types of Nonrenewable energy resources

A

Fossil fuels and nuclear power

23
Q

Three types of fossil fuels

A

Oil coal gas

24
Q

Fossil fuel advantages

A

Reliable
Produces a lot ofEnergy
Cheap

25
Q

Fossil fuel disadvantages

A

Releases carbon dioxide which leads to global warming and climate change
Releases sulphur dioxide which can cause acid rain
Will run out

26
Q

Nuclear power definition

A

Energy taken from atoms by nuclear fission

27
Q

What two types of fuel can be used in nuclear power

A

Uranium or plutonium

28
Q

Advantages of nuclear power

A

Produced no greenhouse gases
Produces more energy than fossil fuels

29
Q

Disadvantages of nuclear power

A

Radioactive waste is produced
Can be dangerous if there is an explosion as radioactive waste would spread over a wide area

30
Q

Features that could result in a very of energy demand

A

Time of day
Time of year

Physics (7 decks)

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