CP7 Flashcards
1
Q
When is energy transferred?
A
Energy is transferred when a force makes something move.
2
Q
What is the energy transferred by a force called?
A
Work done.
3
Q
What is the formula for work done?
A
Work done (J) = Force (N) x Distance moved in the direction of the force (m)
4
Q
What is the formula for work done in terms of letters (and what do they represent)?
A
E=F x d (E=work done, F=force, d=distance).
5
Q
What is power (and what is it measured in)?
A
The rate at which energy is transferred. It is measured in Watts (W).
6
Q
What is the equation for power?
A
Power (W) = Work done (J)/Time taken (s)
7
Q
What is the formula for power in terms of letters (and what do they represent)?
A
P=E/t (P=power, E=work done, t=time)
