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Edexcel GCSE Physics > EQUATIONS > Flashcards

Flashcards in EQUATIONS Deck (21)
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1
Q

average speed =

A

average speed = distance / time

2
Q

force =

A

force = mass x acceleration

3
Q

acceleration =

A

acceleration = change in velocity / time

4
Q

momentum =

A

momentum = mass x velocity

5
Q

density =

A

density = mass / volume

6
Q

work done =

A

work done = force x distance moved

7
Q

energy transferred =

A

energy transferred = work done

8
Q

kinetic energy =

A

1/2 x mass x speed²

9
Q

gravitational potential energy =

A

gravitational potential energy = mass x gravity x height

10
Q

weight =

A

weight = mass x gravitational field strength

11
Q

pressure =

A

pressure = force / area

12
Q

moment =

A

moment = force × perpendicular distance from the pivot

13
Q

charge =

A

charge = current × time

14
Q

voltage =

A

voltage = current × resistance

15
Q

electrical power =

A

electrical power = voltage × current

16
Q

wave speed =

A

wave speed = frequency × wavelength

17
Q

primary voltage
————————– =
secondary voltage

A

primary voltage
————————– = primary turns / secondary turns
secondary voltage

18
Q

refractive index =

A

refractive index = sin i / sin r

19
Q

efficiency =

A

efficiency = useful energy output / total energy output

20
Q

pressure difference =

A

pressure difference = height × density × gravity

21
Q

input power =

A

input power = output power