Chapter 5 Work Energy And Power Flashcards
(6 cards)
1
Q
Work done
A
Well done by a force on a body is the product of the force and the displacement in the direction of the force
W = Fscosθ
2
Q
Work done by a gas
A
P∆V
3
Q
Energy
A
Ability or capacity of a body to do work on another body
4
Q
Elastic potential energy
A
1/2 kx^2
5
Q
Principle of conservation of energy
A
Energy can neither be created nor destroyed, but it can be transformed from one form to another
6
Q
Efficiency of a device
A
Ratio of useful energy output to the energy input expressed as a percentage
