Chapter 5.3: Collisions and Energy Transfer Flashcards
1
Q
Define energy
A
Energy is the capacity to do work
2
Q
Define work
A
The force applied onto an object over the distance
3
Q
Define kinetic energy
A
Energy which a body possesses by virtue of being in motion
4
Q
Define gravitional potential energy
A
Energy possessed by an object due to gravity
5
Q
Define elastic potential energy
A
Energy possessed by an object due to elasticity
6
Q
State the Law of Conservation of Energy
A
Energy can neither be created nor destroyed - only converted from one form of energy to another.
7
Q
Explain why the energy efficiency of a transformation is rarely 100%
A
Energy is usually lost as heat, sound or other means
