Chapter 5 Work, Energy and Power Flashcards
1
Q
What is meant by gravitational potential energy and what is the equation?
A
Gravitational energy is the energy stored in an object at a height
GPE= mass x gravity x change in height
2
Q
Define work done by a force?
A
Force x distance moved in the direction of the force
3
Q
Define Watt
A
1 joule of energy per second
4
Q
State the principle of conservation of energy?
A
Mass cannot be created or destroyed, only transferred between stores
total energy in a closed system remains constant
5
Q
Example of where elastic potential energy is displayed?
A
‘Stretched’ rubber band
