A-Level Physics Formula List
Below is a list of the essential formulae not provided to students during A-Level
physics examinations.
speed =
distance
time
s=
F = ma
force = mass × acceleration
acceleration =
density =
d
t
change in velocity
time taken
mass
volume
a=
∆v
t
ρ=
m
V
momentum = mass × velocity
ρ = mv
work done = force × distance moved in
direction of force
W = Fs
power =
energy transferred work done
=
time taken
time taken
P=
W
t
weight = mass × gavitational field strength
W = mg
kinetic energy = 1 2 × mass × velocity 2
E k = 1 2 mv 2
change in potential = mass × gravitational field × change in
∆Ep = mg ∆h
energy
pressure =
strength
height
force
area
p=
F
A
pressure × volume = number of × molar gas × absolute
moles
constant
temperature
pV = n R T
charge = current × time
q = It
potential difference = current × resistance
V = IR
electrical power = potential difference × current
P=VI
potential difference =
resistance =
energy transferred
charge
resitivity × length
cross − sectional area
W
q
V =
R=
ρl
A
energy = potential difference × current × time
E =V It
wave speed = frequency × wavelength
v= fλ
mass × velocity 2
centripetal force =
radius
capacitance =
charge stored
potential difference
voltage across coil 1 number turns coil 1
=
voltage across coil 2 number turns coil 2
electrostatic force = k
gravitational force =
q1 q 2
r2
G m1 m2
r2
mv 2
F=
r
C=
q
V
V1
N1
=
V2
N2