1
Q
Speed =
A
Speed = distance/time. s = d/t
2
Q
Acceleration =
A
Acceleration = change in velocity/time a = (v-u)/t
3
Q
Force =
A
Force = mass x acceleration.
F=ma
4
Q
Weight =
A
Weight = mass x gravitational field strength W = mg
5
Q
Charge Q =
A
Charge = current x time Q = It
6
Q
Wave Speed =
A
Wave Speed = frequency x wavelength
7
Q
frequency =
A
frequency = 1/time period f = 1/T
8
Q
Efficiency =
A
Efficiency = useful energy output/total energy input
9
Q
Density =
A
Density = mass/volume p = m/v
10
Q
Pressure =
A
Pressure = Force/Area
11
Q
Pressure in a liquid =
A
Pressure in a liquid = depth x density x gravitational field strength
P = hpg
