Energy year 7 Flashcards
Name 4 renewable resources.
.Solar
.Wind
.Hydroelectric
.Biofuel
Name 8 energy stores ;)
Thermal Kinetic Nuclear Magnetic Chemical Gravitational potential Elastic Electrical
Where does conduction happen?
Solids!!
Where does convection happen?
Liquids and gases :0
What is the unit of energy?
JOULES
Name 4 non-renewable resources
.Coal
.Oil
.Gas
.Nuclear
How do calculate the efficiency of an energy transfer?
Useful energy out divided by total energy….
Where does radiation happen?
A vacuum
What source absorbs heat in infra-red radiation?
Black surfaces
Which surface reflects light?
White or black surfaces?
White
Which surface emits heat first?
Black
Why are fossil fuels called this?
Because they are dug up from the ground like fossils (like coal)
To make water evaporate you need to take energy out/in
Take energy out :(
What does finite energy
Energy that will eventually run out
