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Physics GCSE Y11 (F) > Units & Equations > Flashcards

Units & Equations Flashcards

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1
Q

What is the unit for density?

A

g/cm3 or kg/m3

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2
Q

What is the unit for charge flow?

A

Columbs, C

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3
Q

What is the equation relating pressure, force and area?

A

pressure = force / area

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4
Q

What is the unit for resistance?

A

Ohms

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5
Q

What is the equation relating power, work done and time?

A

Power = work done / time or Work done = power x time

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6
Q

What is the unit for speed?

A

m/s

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7
Q

What is the equation relating power, current and resistance?

A

Power = current^2 x resistance

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8
Q

What is the unit for gravitational potential energy?

A

J

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9
Q

What is the unit for mass?

A

kg

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10
Q

What is the unit for force?

A

Newtons

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11
Q

What is the unit for moment?

A

Nm

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12
Q

What is the equation for efficiency?

A

efficiency = useful power/energy / total power/energy

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13
Q

What is the unit for weight?

A

N (it is a force)

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14
Q

What is the unit for momentum?

A

kgm/s

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15
Q

What is the equation relating wave speed, frequency and wavelength?

A

wave speed = wavelength x frequency

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16
Q

What is the equation relating power, energy transferred and time?

A

Power = energy transferred / time

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17
Q

What is the equation that relates energy transferred, power and time?

A

Energy transferred = power x time

18
Q

What is the equation relating charge flow, current and time?

A

Charge flow = current x time

19
Q

What is the equation for gravitational potential energy?

A

G.P.E = mass x gravity x height

20
Q

What is the unit for acceleration?

A

m/s2

21
Q

What is the equation relating work done, force and distance?

A

work done = force x distance

22
Q

What is the unit for pressure?

A

N/m2 or Pa

23
Q

What is the equation relating force, mass and acceleration?

A

force = mass x acceleration

24
Q

What is the unit for wavelength?

A

m

25
Q

What is the unit for potential difference?

A

Volts, V

26
Q

What is the equation relating potential difference, current and resistance?

A

Potential difference = current x resistance

27
Q

What is the unit for work done?

A

J or Nm

28
Q

What is the unit for wave speed?

A

m/s

29
Q

What is the equation relating acceleration, change in velocity (speed) and time?

A

acceleration = change in speed / time taken

30
Q

What is the equation relating force in a spring. spring constant and extension?

A

force = spring constant x extension

31
Q

What is the equation that relates moment, force and distance?

A

Moment = force x distance

32
Q

What is the equation relating momentum, speed and mass? (Higher Tier Only)

A

momentum = speed x mass

33
Q

What is the unit for power?

A

Watt, W

34
Q

What is the equation relating weight, mass and gravitational field strength?

A

weight = mass x gravitational field strength

35
Q

What is the equation that relates energy transferred, potential difference and charge flow?

A

Energy transferred = potential difference x charge flow

36
Q

What is the unit for current?

A

Amps, A

37
Q

What is the unit for frequency?

A

Hz

38
Q

What is the equation relating power, potential difference and current?

A

Power = potential difference x current

39
Q

What is the unit for kinetic energy?

A

J, Joules (all energy has units Joules)

40
Q

What is the equation that relates density, mass and volume?

A

density = mass / volume

41
Q

What is the equation relating speed, distance and time?

A

Distance = speed x time or Speed = distance / time

42
Q

What is the equation for kinetic energy?

A

kinetic energy = 1/2 x mass x speed^2

Physics GCSE Y11 (F) (9 decks)

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