paper 2 Flashcards
1
Q
energy transferred=
A
charge x potential difference
2
Q
work done=
A
force x distance moved in direction of force
3
Q
moment of a force=
A
force x distance normal to the direction of the force
4
Q
power=
A
work done / time taken
p = e / t
5
Q
pressure =
A
force / area of surface
p = f /a
6
Q
force (spring)=
A
spring constant x extension
f = k x x
7
Q
density =
A
mass / volume
8
Q
electric power
A
current x potential difference p=i x v OR current^2 x resistance p = i^2 x r
9
Q
power (energy)=
A
energy transferred / time
p = e / t
10
Q
potential difference =
A
current x resistance
v = i x r
11
Q
charge=
A
current x time
q = i x t
