Key Words (Mr Kay) Flashcards
1
Q
closed system
A
an object/ group of objects where the total energy is constant.
2
Q
conservation of energy
A
energy cannot be created or destroyed.
3
Q
dissipated energy/ dissipation of energy
A
energy that is not usefully transferred and stored in less useful ways.
4
Q
efficiency
A
useful energy transferred by a device ÷ total energy supplied to the device.
5
Q
Hooke’s Law
A
the extension of a string is directly proportional too the fprce applied, as long as its limit of proportionality is not exceeded.
6
Q
input energy
A
energy supplied to a device.
