IGCSE Equations Flashcards
1
Q
speed
A
distance/time taken
2
Q
acceleration
A
change in velocity/time taken
3
Q
force
A
mass x acceleration
4
Q
weight
A
mass x gravitational field strength
5
Q
momentum
A
mass x velocity
6
Q
moment
A
force x perpendicular distance from pivot
7
Q
power
A
current x voltage
8
Q
voltage
A
current x resistance
9
Q
charge
A
current x time
10
Q
energy transferred
A
charge x voltage
11
Q
wave speed
A
frequency x wavelength
12
Q
refractive index
A
sin(angle of incidence)/sin(angle of refraction)
13
Q
efficiency
A
(useful energy output/total energy output) x 100%
14
Q
work done
A
force x distance moved
15
Q
work done
A
energy transferred
16
Q
gravitational potential energy
A
mass x gravitational field strength x height
17
Q
kinetic energy
A
1/2 x mass x velocity^2
18
Q
power
A
work done/time taken
19
Q
density
A
mass/volume
20
Q
pressure
A
force/area
