paper 1 Flashcards
1
Q
work done=
A
force x distance
2
Q
kinetic energy=
A
1/2 x mass x speed^2
3
Q
gravitational potential energy=
A
mass x gravity x height
4
Q
power using work done
A
work done / time
5
Q
power using energy=
A
energy / time
6
Q
efficiency=
A
useful output / input
7
Q
charge=
A
current x time
8
Q
potential difference=
A
current x resistance
9
Q
power using potential difference=
A
potential difference x current
10
Q
power using resistance=
A
current^2 x resistance
11
Q
energy transfer= (electricity stuff)
A
charge flow x potential difference
12
Q
density =
A
mass / volume
