# 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