Energy Flashcards
1
Q
What is energy need for?
A
To make things happen
2
Q
What is energy measured in?
A
Joules or kilojoules
3
Q
What does the law of conservation of energy say?
A
That energy cannot be created or destroyed, only transferred
4
Q
What is the total energy before a change always equal to?
A
The total energy after a change
5
Q
What different energy stores can energy be in?
A
Chemical - to do with food, fuels and batteries
Thermal - to do with hot objects
Kinetic - to do with moving objects
Gravitational potential - to do with the position in a gravitational field
Elastic potential - to do with changing shape, squashing and stretching
