Work, Energy, Power Flashcards
1
Q
What is work done?
A
Work Done by force is defined as the product of the force and displacement in the direction of the force. (W=Fcosx)
2
Q
When is work positive/ negative?
A
Positive when displacement is parallel to force
3
Q
What is potential energy?
A
Stored energy available to do work
4
Q
What is GPE?
A
Gravitational PE is the potential energy possessed by a mass due to its position in the field of another mass
5
Q
What is Elastic PE?
A
Elastic PE of a system is due to its deformation
6
Q
What is power?
A
Work Done per unit time
7
Q
Average Power?
A
Work Done/ Time Taken
8
Q
Instantaneous Power?
A
P=Fv
