P1 Flashcards
1
Q
Conservation of energy
A
Energy cannot be created or destroyed
2
Q
Dissipated energy/ dissipation of energy
A
The energy that is not usefully transferred and stored in less useful ways
3
Q
Efficiency
A
Useful energy transferred by a device+ total energy supplied to the device
4
Q
Elastic potential energy
A
Energy strored in an elastic object as a result of it being deformed
5
Q
Hookes law
A
The exntension of a spring is directly proportional to the force applied as long as its limit of proportionality is not exceeded
6
Q
Input energy
A
Energy supplied to a device
7
Q
Power
A
The energy transformed pr transferred per second. Watt
8
Q
Wasted energy
A
Enegy that is not usefully transferred
9
Q
Work
A
The energy transferred by a force. Work done J = foce (N)x distance moved in the direction of the force (m)
