1.8 Work Done, Potential And Kinetic Energy Flashcards
1
Q
Work done equations
A
Wd=FxS
Wd=1/2mv^2-1/2mu^2
2
Q
GPE equation
A
GPE=mgh
#GPE=mg#h
3
Q
Ke equation
A
Ke=1/2mv^2
4
Q
Conservation of energy
A
Energy cannot be created or destroyed merely transferred from one form to another
5
Q
Gpe and Ke linked equation
A
Loss in gravitation pe= gain in ke
mg#h=1/2mv^2-1/2mu^2
6
Q
Power equations
A
P=Wd/T
P=FV
7
Q
Efficiency equations
A
Eff=useful power output/total power output
Eff=total energy input in a given time
