Work and Power Flashcards
1
Q
what happens when work is done on an object
A
when work is done on an object: a force must act to change the position of the object, energy is tranformed from one form to another OR energy is transferred to another object
2
Q
energy change =
A
work done
3
Q
what is the formula for work and what is it measured in
A
w = F x D joules
4
Q
what is power
A
a measurement of the rate work is done (how fast energy is used)
5
Q
what is the formula for power and what is it measured in
A
work done or energy change OVER time
measured in watts
