Energy & Electricity Flashcards
The cells in a battery have the ability to produce energy. What kind of reaction is happening in the battery for it to produce energy?
A Chemical reaction.
The chemicals in the cell react with each other
Plastic is a good INSULATOR, why do we say this?
Plastic does not allow electricity to pass through
General knowledge: What is the name of the Nuclear power station in the Western Cape?
The Koeberg Nuclear Power Station
General knowledge: What fuel does Koeberg Nuclear Power Station use to create energy?
URANIUM is the fuel Koeberg Nuclear Power Station uses, because it has lots of stored energy.
How can we use wind to create energy?
Wind Turbines on a wind farm create energy from the wind. wind blows against the blades that makes them move to produce energy.
General knowledge: What number volt electricity does ESKOM supply to our homes?
240V
When wood is burnt what type of energy is released?
Heat energy - for warmth & cooking
Light Energy - to see in the dark
The energy in ………………. makes cars able to move.
Petrol
What is the difference between renewable energy & non renewable energy?
Renewable energy can be replaced & non renewable energy can not?
What type of energy is wind energy?
Kinetic energy
What is the main source of heat energy for all living things?
The sun
What type of energy do we get from the sun, the moon, fire etc
Light energy
Is wood a renewable energy source?
yes it is because trees can be regrown
Is coal a renewable energy source?
No it is not because coal will eventually run out and can not be replaced.
What is potential energy?
This is when energy is stored and can be used later.
eg a wound up elastic band, wind up a toy
