# GCSE equations Flashcards Preview

## Physics GCSE > GCSE equations > Flashcards

Flashcards in GCSE equations Deck (20)
1
Q

what is the unit of acceleration?

A

m/s

2
Q

Acceleration equation

A

change in speed/time taken or (v-u)/time taken

3
Q

what is the equation for working out weight?

A

mass x 9.81 (gfs)

4
Q

Equation to work out force

A

mass x acceleration

5
Q

equation to work out efficiency

A

useful energy used/total input

6
Q

equation to work out momentum(2)

A

mass x velocity

7
Q

equation to work out wave speed

A

distance/time
Or
Wavelength x frequency

8
Q

equation to work out density

A

mass/volume

9
Q

equation to work out work done

A

force x distance moved in direction of force

10
Q

equation to work out change in gravitational potential energy (AGPE) ^

A

mass x gravitational field strength x change in vertical height

11
Q

equation to work out kinetic energy

A

1/2 x mass x (speed squared)

12
Q

equation to work out power

A
• work done/time take

- energy transferred/time taken

13
Q

energy transferred equation

A

charge moved x potential difference

14
Q

charge equation

A

current x time

15
Q

potential difference equation

A

current x resistance

16
Q

electrical power

A

current x voltage

or current squared x resistance

17
Q

force exerted on a spring equation

A

= spring constant x extension

18
Q

Equation to work out moment of a force

A

Force x distance perpendicular to the direction of force

18
Q

Equation to work pressure

A

Force normal to surface/area of that surface

20
Q

Resistance

A

R = v x I
Ravioli
Voltage x current