AQA GCSE Physics – Equations & Formulae (specification 8463 & 8464)
Unit 1: Energy
Unit 3: Particle Model of Matter
Unit 5: Forces
Equations to Learn
Equations to Learn
Equations to Learn
kinetic energy =
1
× mass × speed2
2
EK =
1
mv 2
2
density =
mass
volume
π=
π
π
GPE = mass × gravitational field strength × height πΈπ = ππβ
Equations given in the exam
work done
energy transferred
=
time taken
time taken
useful energy output
efficiency =
total energy input
useful power output
efficiency =
total power input
change in thermal energy = mass ×
specific heat capacity × temperature change
π₯πΈ = πππ₯π
thermal energy for a change in state =
mass × specific latent heat
πΈ = ππΏ
^ for a gas: pressure × volume = constant
ππ
= ππππ π‘πππ‘
power =
π=
π πΈ
=
π‘
π‘
weight = mass × gravitational field strength
work done = force × distance
π = πΉπ
(moved along the line of action of the force)
force = spring constant ο΄ extension
moment of a force = force ο΄ distance
(perpendicular to the direction of the force)
force normal to a surface
pressure =
area of that surface
distance travelled = speed ο΄ time
Equations given in the exam
1
elastic potential energy = 0.5 × spring constant x
πΈπ = ππ 2
(extension)2
2
change in thermal energy = mass ×
π₯πΈ = πππ₯π
specific heat capacity × temperature change
Unit 6: Waves
acceleration =
Equations to Learn
wave speed = frequency ο΄ wavelength
π£=ππ
Equations given in the exam
Unit 2: Electricity
1
frequency
image height
^ magnification =
object height
time period =
Equations to Learn
charge flow = current × time
π=πΌπ‘
potential difference = current × resistance
π=πΌπ
total resistance = resistance of component 1 +
resistance of component 2
π
π
= π
1 + π
2
power = current × potential difference
π=πΌπ
1
π
βπππππ
π=
βππππππ‘
π=
=
change in velocity
time taken
final velocity-initial velocity
time taken
π = π£π‘
π=
Δπ£
π‘
=
π£−π’
π‘
Equations given in the exam
Unit 7: Magnetism and Electromagnetism
* ^ Pressure = height of column ο΄ density of
liquid ο΄ gravitational field strength
π=βππ
Equations given in the exam
^ (final velocity)2 – (initial velocity)2 =
2 ο΄ acceleration ο΄ distance
π£ 2 − π’2
= 2ππ
change in momentum
time taken
energy transferred = power × time
πΈ = ππ‘
∗
energy transferred = charge flow ×
potential difference
ππ
ππ
=
ππ
ππ
Unit 4: Atomic Structure & Unit 8: Space
πΈ = ππ
potential difference across primary coil
=
potential difference across secondary coil
number of turns in primary coil
number of turns in secondary coil
* ^ p.d across primary ο΄ current in primary =
p.d. across secondary x current in secondary
ππ πΌπ = ππ πΌπ
^ Separate Physics only
πΉ
π΄
π = ππ£
π= πΌ π
* Higher tier only
π=
* momentum = mass ο΄ velocity
* ^ Force =
power = (current) × resistance
π = πΉπ
πΉ = ππ
πΉ = π΅πΌπ
2
πΉ = ππ
resultant force = mass ο΄ acceleration
* Force = magnetic flux density ο΄ current ο΄
length of conductor in magnetic field
2
π =ππ
πΉ=
π Δπ£
π‘
There are no equations in these sections of the course
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