generating electricity

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  • Created by: ellamcg
  • Created on: 12-05-16 17:53
wave power is...
kinetic energy of the water- electrical energy
1 of 17
solar power is...
light/thermal energy from the sun- thermal energy of the water/ electrical energy for electricity
2 of 17
tidal power is...
kinetic energy of the water- electrical energy
3 of 17
biomass/bio fuels are...
chemical energy- thermal energy in burning
4 of 17
nuclear energy is...
thermal energy of the fast moving particles- electrical energy
5 of 17
geothermal energy is...
thermal energy from underground- thermal energy of the water
6 of 17
wind energy is...
kinetic energy of the wind- electrical energy
7 of 17
hydroelectric power is...
gravitational energy of the raised water- electrical energy
8 of 17
payback time=
cost / savings per year
9 of 17
energy transferred=
power x time
10 of 17
cost=
number of units x cost per unit
11 of 17
power=
energy transferred/ time taken
12 of 17
energy efficiency=
useful output energy/ total input energy
13 of 17
useful and total energy is measured in...
joules
14 of 17
what reduces the efficiency of a machine?
energy losses
15 of 17
what causes energy losses
air resistance, friction, sound, current
16 of 17
what is the wasted form of energy when a TV is turned on?
heat
17 of 17

Other cards in this set

Card 2

Front

solar power is...

Back

light/thermal energy from the sun- thermal energy of the water/ electrical energy for electricity

Card 3

Front

tidal power is...

Back

Preview of the front of card 3

Card 4

Front

biomass/bio fuels are...

Back

Preview of the front of card 4

Card 5

Front

nuclear energy is...

Back

Preview of the front of card 5
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