SP8 Work and power Flashcards
1
Q
When is energy transfered?
A
when things happen or when a force makes something move
2
Q
What is work done?
A
energy transfered by a force
3
Q
what is the equation for work done?
A
work done (J) = force (N) x distance in the direction of force (m)
4
Q
what is the letter equation for work done?
A
E=Fxd
5
Q
what is power?
A
the rate at which energy is transferred
6
Q
A
7
Q
What do you measure power in?
A
watts (w)
8
Q
how many watts is one jule of work done per second?
A
1
9
Q
what is the equation for power?
A
power (W) = work done (J) / time taken (s)
10
Q
what is the letter equation for power?
A
P = E/t
