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Flashcards in 3 Deck (16)
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1
Q

Stores of energy

A
  • heat
  • electrical
  • light
  • sound
  • chemical
  • GPE
  • EpE
  • nuclear
  • Kinetic
2
Q

Efficiency equation

A

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

3
Q

Keeping warm in the house

A
Double glazed windows 
Insulation 
Expanding foam 
Tin foil behind radiators 
Carpet 
Curtains
4
Q

Ways that heat gets out or into other objects

A
  • conduction (physically touching)
  • convection (heat rises, and falls when its cold)
  • radiation. (Disperses in all directions)
5
Q

Non renewable energy sources

A

Coal, oil, natural gas, nuclear power plants

6
Q

Renewable energy sources

A
Wind
 Solar 
Geothermal 
Wave 
Tidal 
Biomass 
HEP
7
Q

How coal, natural gas and oil give us energy

A

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
Q

Ads of non renewable energy.

A

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

9
Q

Disads to non renewable energy

A

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

10
Q

Nuclear power ads and disads

A

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

11
Q

Solar energy

A

Uses solar panels
Can be unreliable
Renewable

12
Q

Wind energy

A

Wind turbine turns generator
Unreliable
Costly to set up
Renewable

13
Q

Tidal energy

A
Water turbines when tide comes in and out they turn 
Only occurs twice a day 
Reliable 
Costly to set up 
Renewable
14
Q

Biomass

A

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

15
Q

Geothermal

A

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

16
Q

HEP

A

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