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GCSE - Physics > Physics Equations AQA GCSE 2022 ONLY > Flashcards

Physics Equations AQA GCSE 2022 ONLY Flashcards

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1
Q

What are the units for:

Kinetic energy = 1/2 x mass x speed^2
Ek = 1/2 x m x v^2

A

Kinetic energy = J
Mass = Kg
Speed = m/s

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2
Q

What are the units for:

GPE = mass x gravitational field strength x height 
Ep = m x g x h
A

GPE = J
Mass = Kg
Gravitational field strength = N/kg
Height = m

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3
Q

What are the units for:

Elastic potential energy = 1/2 x spring constant x extension^2
Ee = 1/2 x k x e^2

A

Ee = J
Spring constant = (N/m)
Extension = m

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4
Q

What are the units for:

Power = work done / time
P = W/t
A

Power = W (watts)
Work done = J
Time = s

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5
Q

What are the units for:

Power = energy transferred / time
P = E/t
A

Power = W (watts)
Energy transferred = J
Time = s

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6
Q

What are the units for:

Efficiency = useful energy output / total energy input 
Efficiency = useful power output / total power output
A 
Efficiency = %
Power = W
Energy = J
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7
Q

What are the units for:

Change in thermal energy = mass x specific heat capacity x temperature change
🔺E = m x c x 🔺Ø

A

Change in thermal energy = J
Mass = Kg
Specific Heat Capacity = J/Kg°C
Temp change = °C

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8
Q

What are the units for:

Charge flow = current x time
Q = I x t

A

Charge flow = C (coulomb)
Current = A (amps)
Time = s

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9
Q

What are the units for:

Potential difference = current x resistance
V = I x R

A

Potential difference = V (volts)
Current = A (amps)
Resistance = Ω Ohms

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10
Q

Total resistance equation + units?

Series

A

Total resistance = resistance of component 1 + resistance of component 2

RT = R1 + R2

Resistance = Ω Ohms

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11
Q

Total resistance equation + units?

Parallel

A

1/Rt = 1/R1 + 1/R2 + 1/R3

Resistance = Ω Ohms

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12
Q

What are the units for:

Power = current x potential difference
P =I x V

A

Power = W
Current = A (amps)
Potential difference = V

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13
Q

What are the units for:

Power = current^2 x resistance 
P = I^2 x R
A 
Power = W
Current = A
Resistance = Ω Ohms
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14
Q

What are the units for:

Energy transferred = power x time
E = P x t

A 
Energy = J
Power = W
Time = s
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15
Q

What are the units for:

Energy transferred = charge flow x potential difference
E = Q x V

A

Energy transferred = J
Charge flow = A
Potential difference = V

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16
Q

What are the units for:

Density = mass / volume
P = m / v
A 
Density = g/cm^3
Mass = g
Volume = cm^3

OR

Density = kg/m^3
Mass = kg
Volume = m^3
17
Q

What are the units for:

Change in thermal energy = mass x specific heat capacity x temperature change
🔺E = m x c x 🔺Ø

A

Change in thermal energy = J
Mass = Kg
Specific Heat Capacity = J/Kg°C
Temp change = °C

18
Q

What are the units for:

Thermal energy for a change in state = mass x specific latent heat
E = m x L

A

Thermal energy for state change = J
Mass = kg
Specific latent heat = J / kg

19
Q

Boyles law + units

A

P1 x V1 = P2 x V2

Pressure = Pa (pascal)
Volume = cm^3 OR m^3
20
Q

What are the units for:

For a gas = pressure x volume = constant

A 
Pressure = Pa (pascal)
Volume = cm^3 OR m^3
21
Q

What are the units for:

Wave speed = frequency / wavelength
v = f x

A

Wave speed = m/s
Wavelength = m
Frequency = Hz

22
Q

What are the units for:

Time period = 1 / frequency
T = 1/f

A

Time period = s

Frequency = Hz

23
Q

Be aware of this equation:

Magnification = image height / object image 
M = h-image/ h-object
A

-

24
Q

What are the units for:

Weight = mass x gravitational field strength

A

Weight = N
Mass = kg
Gravitational field strength = N/kg

25
Q

What are the units for:

Work done = force x distance
W = F x s

A 
Work = J
Force = N
Distance = m
26
Q

What are the units for:

Hookes Law
Force = spring Constance x extension
F = k x e

A

Force = N
Spring constant = N/m
Extension = m

27
Q

What are the units for:

Moment of a force = force x distant
M = F x d

A

Perpendicular to the direction of teh force

Moment of a force = Nm
Distance = m
Force = N

28
Q

What are the units for:

Pressure = force normal to a surface / area of that surface
P = F / A
A 
Pressure = N/m^2
Force = N
Area  = m^2
29
Q

What are the units for:

Distance traveled = speed x time

A 
Distance = m
Speed = m/s
Time = s
30
Q

What are the units for:

Acceleration = change in velocity / time taken
a = 🔺v / t
Acceleration = final - initial velocity / time taken
a = v - u / t
A 
Acceleration = m/s^2
Velocity = m/s
Time = s
31
Q

What are the units for:

Resultant force = mass x acceleration
F = m x a

A

Resultant force = N
Mass = kg
Acceleration = m/s^2

32
Q

What are the units for:

Momentum = mass x velocity
P = m x v
A 
Momentum = kg m/s
Mass = kg
Velocity = m/s
33
Q

What are the units for:

Pressure = height of column x density of liquid x gravitational field strength 
p = h x p x g
A 
Pressure = Pa
Height = m
Density = kg/m^3
GFS = N/kg
34
Q

What are the units for:

Final velocity^2 - initial velocity ^2 = 2 x acceleration x distance
V^2-u^2 = 2 x a x s

A 
Velocity = m/s
Acceleration = m/s^2
Distance = m
35
Q

What are the units for:

Force =Change in momentum / time taken
F = m🔺v / t

A 
Force = N
Momentum = kg m/s
Time = s

GCSE - Physics (10 decks)

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