Paper 1 Equations Flashcards
1
Q
Distance
A
speed x time
2
Q
acceleration
A
Change in velocity / time
3
Q
force
A
mass x acceleration
4
Q
weight
A
mass x gravitational field strength
5
Q
efficiency
A
total useful output / total input
6
Q
momentum
A
mass x velocity
7
Q
wave speed (if you dont have distance)
A
frequency x wavelength
8
Q
density
A
mass / volume
9
Q
work done
A
force x distance
10
Q
gravitational potential energy
A
mass x gravity x height
11
Q
kinetic energy
A
1/2 x mass velocity^2
12
Q
power
A
energy transferred / time
13
Q
moment
A
force x distance
14
Q
time period
A
1 / frequency
15
Q
critical angle
A
1 / sinθ (critical angle)
16
Q
power of the lense
A
1 / focal length
17
Q
magnification
A
image height / actual height
