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Flashcards in Energy Deck (24):
1

What is energy measured in

Joules

2

What is the principle of conservation of energy

Can can not be created or destroyed, but can change from one form to another

3

What is 1J

Lofting an apple 1m into the air

4

Where does heat energy go

Dissipated into the atmosphere

5

Renewable energy

Energy from sources that will never run out or which are naturally replenished within a human lifetime

6

Non renewable energy

Has a finite supply and will run out

7

Nuclear power stations

Use fission reactions.
Nuclear is non renewable because uranium supply’s won’t last forever

8

Energy changes
Thermocouple

Heat - electrical

9

Steam engine

Chemical - heat - kinetic

10

Dynamo

Kinetic - electrical

11

Loudspeaker

Electrical - sound

12

Electrical bell

Electrical - magnetic - Kinetic - sound

13

Natural Gas

🤬Nonrenewable

🤬Global warming

🤬slow response to change

🤬expensive

🙂reliable

14

Coal

🤬Nonrenewable

🤬Global warming

🤬slow response to change

🤬expensive

🙂reliable

15

Oil

🤬Nonrenewable

🤬Global warming

🤬slow response to change

🤬expensive

🙂reliable

16

Nuclear

🤬Nonrenewable

🤬Radioactive Waste

🤬slow response to change

🤬moderate fuel costs

🙂reliable

17

Solar

🙂Renewable

🙂no fuel costs

🤬not reliable

🤬expensive to construct

18

Wind

🙂Renewable

🙂no fuel costs

🤬not reliable

🤬visual pollution

🤬expensive to construct

19

Tidal

🙂renewable

🙂no fuel costs

🤬destroys habitats for wading birds

🤬not reliable

20

Hydroelectric

🙂renewable

🙂reliable

🙂fast response to change

🙂no fuel costs

🤬floods river

🤬expensive to construct

21

Wave

🙂renewable

🙂no fuel costs

🤬damage habits

🤬not reliable

🤬damage bad weather condition

22

Geothermic

🙂renewable

🙂reliable

🙂no fuel costs

🤬some toxic gas release

🤬only some locations

23

Biomass

🙂renewable

🙂reliable

🤬land use for fuel instead of food

🤬slow response to change

🤬fuel costs

24

Explain how the energy stores in fossil fuels can be traced back to the sun

The energy stored in the fossil fuels originally came from sunlight. Plants used light energy from the Sun for photosynthesis to make their chemicals. This stored chemical energy was transferred to stored chemical energy in animals that ate the plants. When the living things died, they were gradually buried by layers of rock. The buried remains were put under pressure and chemical reactions heated them up. They gradually changed into the fossil fuels.