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Flashcards in 3 Deck (16)
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1

Stores of energy

- heat
- electrical
- light
- sound
- chemical
- GPE
- EpE
- nuclear
- Kinetic

2

Efficiency equation

Efficiency = useful energy out
———————- X100 in percentage
Total energy in

3

Keeping warm in the house

Double glazed windows
Insulation
Expanding foam
Tin foil behind radiators
Carpet
Curtains

4

Ways that heat gets out or into other objects

- conduction (physically touching)
- convection (heat rises, and falls when its cold)
- radiation. (Disperses in all directions)

5

Non renewable energy sources

Coal, oil, natural gas, nuclear power plants

6

Renewable energy sources

Wind
Solar
Geothermal
Wave
Tidal
Biomass
HEP

7

How coal, natural gas and oil give us energy

This is done by the coal (or whatevet from above) being combusted the heat energy this creates heat up nd boils water in which turns to steam. This high pressure steam rises and turns a generator and this generator turns a turbine which then creates the electrical energy.

8

Ads of non renewable energy.

Gives off a lot of energy
Cheap
Easy
Free to collect from earth

9

Disads to non renewable energy

Gives off co2 which does the greenhouse effect.
Other gases it gives off could cause acid rain
Not renewable.

10

Nuclear power ads and disads

Lots of power !!!!
High cost to set up
Waste is radioactive
Non renewable.

11

Solar energy

Uses solar panels
Can be unreliable
Renewable

12

Wind energy

Wind turbine turns generator
Unreliable
Costly to set up
Renewable

13

Tidal energy

Water turbines when tide comes in and out they turn
Only occurs twice a day
Reliable
Costly to set up
Renewable

14

Biomass

Burn all you can find natural and use that as coal
Renewable
Cheap to set up
But have to find materials

15

Geothermal

Water goes far underground then comes up steam amid turns turbines
Reliable
Renewable
Difficult to execute

16

HEP

Water falls down tubes and turns turbines.
Renewable
Reliable
Have to have a damm