A-LEVEL PHYSICS: 4.6.4: Conservation of Energy (SaveMyExams) Flashcards
1
Q
The Principle of Conservation of Energy:
A
Energy cannot be Created nor Destroyed, only Transferred.
2
Q
No Energy Transfer is ___ ___.
A
100% Efficient
3
Q
When Energy is Transferred, some of the Energy is ___ to the surroundings.
A
Dissipated.
4
Q
Dissipated Energy is usually regarded as ___ Energy.
A
Wasted.
5
Q
Any Energy not Transferred for a Useful purpose is…
A
Wasted Energy
6
Q
Give all the Energy Transfers for a falling object:
A
Gravitational Potential Energy —–> Kinetic Energy (—–> Sound & Thermal Energy)
7
Q
Kinetic Energy = …
A
Ek = 1/2mv^2
8
Q
Gravitational Potential Energy = …
A
Egpe = mgΔh
9
Q
Elastic Potential Energy = …
A
Eepe = 1/2ke^2
