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GCSE Science Key Word > AQA PHYSICS Key Equations > Flashcards

AQA PHYSICS Key Equations Flashcards

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1
Q

Ek = ½ mv2

A 
Ek = kinetic energy
m = mass
v = speed
Ek = J (joules)
m = kg (kilograms)
v = m/s (meters per second)
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2
Q

Ee = ½ ke2

A 
Ee = elastic potential energy
k = spring constant
e = extension
Ee = J (joules)
k = N/m (newtons per meter)
e = m (meters)
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3
Q

Ep = mgh

A 
Ep = gravitational potential
energy
m = mass
g = gravitational field strength
h = height
Ep = J (joules)
m = kg (kilograms)
g = N/kg (newtons per kilogram)
h = m (meters)
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4
Q

ΔE = mcΔθ

A 
ΔE = change in thermal energy
m = mass
c = specific heat capacity
Δθ = temperature change
ΔE = J (joules)
m = kg (kilograms)
c = J/kg˚C (joules per kilogram
degree Celsius)
Δθ = ˚C (degree Celsius)
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5
Q

P = E/T

A 
P = power
E = energy transferred
t = time
P = W (watts)
E = J (joules)
t = s (seconds)
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6
Q

P = W/T

A 
P = power
W = work done
t = time
P = W (watts)
E = J (joules)
t = s (seconds)
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7
Q

Efficiency

A

Efficiency = useful energy out/ total energy in

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8
Q

Efficiency

A

Efficiency = useful power out/total power in

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9
Q

Q = It

A 
Q = Charge
I = Current
t = Time
Q = C (coulombs)
I = A (amps)
t = s (seconds)
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10
Q

V = IR

A 
V = Potential difference
I = Current
R = Resistance
V = V (volts)
I = A (amps)
R = Ω (ohms)
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11
Q

P = VI

A 
P = Power
V = Potential difference
I = Current
P = W (watts)
V = V (volts)
I = A (amps)
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12
Q

P = I^2 R

A 
P = Power
I = Current
R = Resistance
P = W (watts)
I = A (amps)
R = Ω (ohms)
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13
Q

E = Pt

A 
E = Energy
P = Power
t = Time
E = J (joules)
P = W (watts)
t = s (seconds)
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14
Q

E = QV

A 
E = Energy
Q = Charge
V = Potential difference
E = J (joules)
Q = C (coulombs)
V = V (volts)
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15
Q

ρ = m/V

A 
ρ = density
m = mass
V = volume
ρ = kg/m3
(kilograms per meter
cubed
m = kg (kilograms)
V = m3
(meters cubed)
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16
Q

ΔE = mcΔθ

A 
ΔE = change in thermal energy
m = mass
c = specific heat capacity
Δθ = temperature change
ΔE = J (joules)
m = kg (kilograms)
c = J/kg˚C (joules per kilogram
degree Celsius)
Δθ = ˚C (degree Celsius)
17
Q

E = mL

A 
E = Energy
m = mass
L = specific latent heat
E = J (joules)
m = kg (kilograms)
L = J/kg (joules per kilogram)
18
Q

pV = constant

A 
p = pressure
V = volume
p = Pa (pascals)
V = m3
(meters cubed)
19
Q

W = mg

A 
W = weight
m = mass
g = gravitational field strength
W = N (newton’s)
m = kg (kilograms)
g = N/kg (newtons per
kilogram)
20
Q

W = Fs

A 
W = work done
F = force
s = distance
W = J (joules)
F = N (newtons)
s = m (meters)
21
Q

F = ke

A 
F = force
k = spring constant
e = extension
F = N (newtons)
k = N/m (newtons per meter)
e = m (meters)
22
Q

Ee = ½ ke2

A 
Ee = elastic potential energy
k = spring constant
e = extension
Ee = J (joules)
k = N/m (newtons per meter)
e = m (meters)
23
Q

M = Fd

A 
M = moment
F = force
d = distance
M = Nm (newton-meters)
F = N (newtons)
d = m (meters)
24
Q

p = F/A

A 
p = pressure
F = force
A = area
p = Pa (pascals)
F = N (newtons)
A = m2
(meters squared)
25
Q

p = hρg

A 
p = pressure
h = height
ρ = density
g = gravitational field strength
p = Pa (pascals)
h = m (meters)
ρ = kg/m3
(kilograms per meter
cubed
g = N/kg (newtons per
kilogram)
26
Q

s = vt

A 
s = distance
v = speed
t = time
s = m (meters)
v = m/s (meters per second)
t = s (seconds)
27
Q

a = Δv/t

A 
a = acceleration
Δv = change in velocity
t = time
a = m/s2
(meters per second
squared)
Δv = m/s (meters per second)
t = s (seconds)
28
Q

v^2– u^2 = 2as

A 
v = final velocity
u = initial velocity
a = acceleration
s = distance
v = m/s (meters per second)
u = m/s (meters per second)
a = m/s2
(meters per second
squared)
s = m (meters)
29
Q

F = ma

A 
F = force
m = mass
a = acceleration
F = N (newtons)
m = kg (kilograms)
a = m/s2
(meters per second
squared)
30
Q

p = mv

A 
p = momentum
m = mass
v = velocity
p = kg m/s (kilograms metre per
second)
m = kg (kilograms)
v = m/s (meters per second)
31
Q

F = m Δv / Δt

A 
F = force
m = mass
v = velocity
t = time
F = N (newtons)
m = kg (kilograms)
v = m/s (meters per second)
t = s (seconds)
32
Q

Period = 1 / Frequency

A 
Period = s (seconds)
Frequency = Hz (hertz)
33
Q

T = 1 / F

A 
T = Period
f = frequency
T = s (seconds)
f = Hz (hertz)
34
Q

v = fλ

A 
v = velocity
f = frequency
λ = wavelength (lambda)
v = m/s (meters per second)
f = Hz (hertz)
λ = m (meters)
35
Q

Magnification = ?

A

Magnification = image height / object height

Ratio, so has no units

36
Q

F = BIl

A 
F = force
B = magnetic flux density
I = Current (i)
l = length (L)
F = N (newtons)
B = T (tesla)
I = A (Amps or Amperes)
l = m (meters)
37
Q

VsIs = VpIp

A 
Vp = potential difference across
the primary coil
Vs = potential difference across
the secondary coil
np = number of turns on the
primary coil
ns = number of turns on the
secondary coil
Vp = V (volts)
Vs = V (volts)
np and ns have no units as they are
just numbers

GCSE Science Key Word (3 decks)

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