Energy Flashcards

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0
Q

What are the 2 pros of solar energy

A

1) never runs out

2) no pollution

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1
Q

Name the 3 types of renewable energy

A

1) solar
2) wind
3) hydroelectric

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2
Q

What are the 4 cons about solar energy

A

1) batteries wear out
2) panels and batteries are expensive
3) needs sunlight
4) currently solar panels cannot produce enough energy to meet all of our needs

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3
Q

What is the pro for wind energy

A

1) no pollution, very environmentally friendly

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4
Q

Name the 2 cons for wind energy

A

1) costly compared to other energy sources

2) take up large areas

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5
Q

What are the 2 non-renewable energy sources

A

1) fossil fuels (coal,oil,gas)

2) nuclear

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6
Q

What is the pro for fossil fuels

A

1) produces heat

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7
Q

What are the cons for fossil fuels

A

1) gives off pollution (greenhouse gases)

2) non-renewable

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8
Q

What are the pros for nuclear energy

A

1) produces almost no pollution
2) uses a small amount of land
3) makes lots of electricity

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9
Q

What are the cons for nuclear energy

A

1) creates radioactive waste which is very dangerous and won’t disappear for thousands of years
2) very expensive
3) radiation can pollute the environment
4) waste can be used to make nuclear bombs

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10
Q

Name the pros for hydroelectric energy

A

1) cheap electricity
2) does not pollute
3) creates jobs
4) irrigates land

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11
Q

Name the cons for hydro electric energy

A

1) the reservoir created by the dam could flood a large area of land
2) any flooding will displace people and animals

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12
Q

What is the law of conservation

A

1) Energy can never be destroyed

2) Energy is transferred from one object to another

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13
Q

What is energy

A

1) power

2) ability to do work

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14
Q

What are the 2 forms of energy

A

1) potential energy

2) kinetic energy

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15
Q

What is potential energy

A

Energy that is stored to be used later

16
Q

What is kinetic energy

A

Energy that is represented with movement

17
Q

What are the sources of energy

A

1) resources

18
Q

What are resources

A

Items that are found in our environment that are used to make other things

19
Q

What are two types of resources

A

1) renewable

2) nonrenewable