p1 energy Flashcards
1
Q
what is efficienty
A
The ratio of useful OUTPUT energy transfer to total energy INPUT
2
Q
power?
A
The rate at which energy transferred or at which work is done
3
Q
Kinetic energy
A
The store of energy that all moving matter has (it is directly put into the objects mass to the square of its velocity)
4
Q
joule
A
The unit used for energy
5
Q
Spring constant
A
A measure of Springs stiffness
6
Q
Thermal energy
A
Energy due to heat
7
Q
Elastic
A
Energy stored in a stretched object
8
Q
Specific heat
A
The amount of energy required to raise the temperature of 1 kg of a substance by one degree
