Physics Equations Sheet

Physics Equations Sheet GCSE Physics (8463)

FOR USE IN JUNE 2022 ONLY

HT = Higher Tier only equations

kinetic energy = 0.5 ? mass ? (speed)2 elastic potential energy = 0.5 ? spring constant ? (extension)2

gravitational potential energy = mass ? gravitational field strength ? height

change in thermal energy = mass ? specific heat capacity ? temperature change

power

=

energy transferred time

power

=

work done time

efficiency

=

useful output energy transfer total input energy transfer

efficiency

=

useful power output total power input

charge flow = current ? time

potential difference = current ? resistance

power = potential difference ? current

power = (current)2 ? resistance

energy transferred = power ? time

energy transferred = charge flow ? potential difference

density =

mass volume

k

1 2

2

e

1 2

k

e2

p = m g h

E = m c

P =

E t

P =

W t

Q= I t

V= I R

P= V I

P = I2 R

E= P t

E= Q V

=

m V

Physics Equations Sheet - GCSE Physics (8463) FOR USE IN JUNE 2022 ONLY

Turn over

thermal energy for a change of state = mass ? specific latent heat

E= m L

For gases: pressure ? volume = constant

p V = constant

weight = mass ? gravitational field strength

W= m g

work done = force ? distance (along the line of action of the force)

W= F s

force = spring constant ? extension

F= k e

moment of a force = force ? distance (normal to direction of force)

pressure

=

force normal to a surface area of that surface

HT

pressure due to a column of liquid = height of column ? density of liquid ? gravitational field strength

M = F d

p =

F A

p= h g

distance travelled = speed ? time

acceleration

=

change in velocity time taken

(final velocity)2 ? (initial velocity)2 = 2 ? acceleration ? distance

s = v t

a =

v t

v2 ? u2 = 2 a s

resultant force = mass ? acceleration

F= m a

HT

momentum = mass ? velocity

HT

force

=

change in time

momentum taken

period

=

1 frequency

wave speed = frequency ? wavelength

p= m v

F

=

m v t

T =

1 f

v=f

magnification

=

image object

height height

HT

force on a conductor (at right angles to a magnetic field) carrying a current = magnetic flux density ? current ? length

HT

potential difference across primary coil potential difference across secondary coil

=

number of turns in primary coil number of turns in secondary coil

HT

potential difference across primary coil ? current in primary coil = potential difference across secondary coil ? current in secondary coil

F= B I l

Vp Vs

=

np ns

Vp Ip = Vs Is

Physics Equations Sheet - GCSE Physics (8463) FOR USE IN JUNE 2022 ONLY

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