Power Flashcards
1
Q
What is power?
A
the rate of transfer of energy
2
Q
What is the equation for power?
A
p = ΔW / Δt = ΔE / t
3
Q
What are the resistive force when a powered object moves at a constant velocity at constant height?
A
equal and opposite
4
Q
What is the equation for power force and velocity?
A
P = Fv
5
Q
What happens when a powered object gains speed?
A
the output force exceed the resistive forces
6
Q
What is the equation for the motive power?
A
motive power = energy per second wasted due to resistive force + gain of kinetic energy gained per secoi
