AQA GCSE Physics Equations & Formulae (specification 8463 ...

AQA GCSE Physics ¨C 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

¡Á mass ¡Á speed2

2

EK =

1

mv 2

2

density =

mass

volume

?=

?

?

GPE = mass ¡Á gravitational field strength ¡Á height ?? = ???

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 ¡Á

specific heat capacity ¡Á temperature change

?? = ????

thermal energy for a change in state =

mass ¡Á specific latent heat

? = ??

power =

?=

? ?

=

?

?

^ for a gas: pressure ¡Á volume = constant

1

elastic potential energy = 0.5 ¡Á spring constant x

?? = ?? 2

(extension)2

2

change in thermal energy = mass ¡Á

?? = ????

specific heat capacity ¡Á temperature change

Unit 6: Waves

1

frequency

image height

^ magnification =

object height

time period =

Equations to Learn

charge flow = current ¡Á time

?=??

potential difference = current ¡Á resistance

?=??

total resistance = resistance of component 1 +

resistance of component 2

??

= ?1 + ?2

power = current ¡Á potential difference

?=??

?=??

final velocity-initial velocity

time taken

? = ??

?=

?

?

? = ??

?=

=

¦¤?

?

???

?

resultant force = mass ? acceleration

? = ??

* momentum = mass ? velocity

? = ??

Equations given in the exam

Unit 7: Magnetism and Electromagnetism

?=???

Equations given in the exam

^ (final velocity)2 ¨C (initial velocity)2 =

2 ? acceleration ? distance

? 2 ? ?2

= 2??

power = (current) ¡Á resistance

?= ? ?

energy transferred = power ¡Á time

? = ??

?

energy transferred = charge flow ¡Á

potential difference

? = ??

2

1

?

??????

?=

???????

?=

=

change in velocity

time taken

? = ??

* ^ Pressure = height of column ? density of

liquid ? gravitational field strength

* Force = magnetic flux density ? current ?

length of conductor in magnetic field

^ Separate Physics only

moment of a force = force ? distance

(perpendicular to the direction of the force)

force normal to a surface

pressure =

area of that surface

acceleration =

Equations given in the exam

Unit 2: Electricity

* Higher tier only

force = spring constant ? extension

Equations to Learn

wave speed = frequency ? wavelength

? =??

work done = force ¡Á distance

? = ??

(moved along the line of action of the force)

distance travelled = speed ? time

Equations given in the exam

2

??

= ????????

weight = mass ¡Á gravitational field strength

change in momentum

time taken

? = ???

* ^ Force =

potential difference across primary coil

=

potential difference across secondary coil

number of turns in primary coil

number of turns in secondary coil

??

??

=

??

??

Unit 4: Atomic Structure & Unit 8: Space

* ^ p.d across primary ? current in primary =

p.d. across secondary x current in secondary

?=

? ¦¤?

?

There are no equations in these sections of the course

?? ?? = ?? ??

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