energy and energy transfer Flashcards
1
Q
Anything moving has what type of energy ?
A
Kinetic
2
Q
What is Density?
A
A measure of the ‘compactness’.
3
Q
What are the units of density?
A
1 g/am3 = 1000 kg/m3
4
Q
How to calculate density?
A
mass(m)/volume(v)
5
Q
Type of energy found in food ?
A
Chemical
6
Q
Something at height has ?
A
Gravitation Potential energy
7
Q
useful energy output / total energy output (times)100% = ??
A
efficiency
8
Q
What does it mean if an energy resource is “renewable”?
A
A renewable energy resources is an energy resource that will not run out
