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Physic Equations - Summer Exam Year 10 - Coggle Diagram
Physic Equations - Summer Exam Year 10
Speed, Distance, Time
D = Distance - measured in m (metres)
S = Speed - measured in m/s (metres/seconds)
D = S x T
T = Time - measured in s (seconds)
Distance = Speed x Time
Acceleration, Change in velocity, Time
a = Acceleration - measured in m/s (metres/seconds )
v = Final velocity - measured in m/s (metres/seconds)
a = (v-u) / t
u = Initial velocity - measured in m/s (metres/seconds)
Acceleration = Change in velocity/Time
t = Time - measured in s (seconds)
Final Speed, Initial Speed, Acceleration, Distance Moved
V = Final speed - measured in m/s (metres/seconds)
U = Initial speed - measures in m/s (metres/seconds)
V = U + (2 x a x s)
a = Acceleration - measured in m/s (metres/seconds )
Final speed = Initial speed + (2 x Acceleration x Distance moved)
s = Distance moved - measured in m (metres)
Force, Mass, Acceleration
F = Force - measured in N (Newtons)
m = Mass - measured in Kg (kilograms)
F = m x a
Force = Mass x Acceleration
a = Acceleration - measured in m/s (metres/seconds )
Weight, Mass, Gravitational Field Strength
W = Weight - measured in N (Newtons)
m = Mass - measured in Kg (kilograms)
W = m x g
g = Gravitational field strength - measured in N/Kg (Newton/kilograms)
Weight = Mass x Gravitational Field Strength
Hooke's Law
F = Force - measured in N (Newtons)
K = Spring constant - measured in N/m (Newton/metres)
F = K x E
E = Extension - measured in m (metres)
Force = Spring constant x extension
Momentum, Mass, Velocity
p = Momentum - measured in Kgm/s (kilogram metres/seconds)
m = Mass - measured in Kg (kilograms)
p = m x v
v = Velocity - measured in m/s (metres/seconds)
Momentum = Mass x Velocity
Force, Change in Momentum, Time Taken
m = Mass - measured in Kg (kilograms)
v = Velocity - measured in m/s (metres/seconds)
f = Force - measured in N (Newtons)
t = Time - measured in s (seconds)
mu = mass x initial velocity
mv = mass x final velocity
f = (mv - mu)/t
Force = Change in Momentum/Time taken
Calculating Power
P = Power - measured in W (watts)
I = Current - measured in A (Amperes)
P = I x V
V = Voltage - measured in V (volts)
Power = Current x Voltage
Moment of a Force, Perpendicular Distance from a pivot
moment - measured in Nm (Newton/metres)
f = Force - measured in N (Newtons)
moment = f x d
d = Distance - measured in m (metres)
Moment = Force x Distance
Energy Transfer
V = Voltage - measured in V (volts)
E = Energy Transferred - measured in J (joules)
E = I x V x t
t = Time -measured in s (seconds)
I = Current - measured in A (amperes)
Energy Transferred = Current x Voltage x Time
Q = Charge - measured in C (coulombs)
V = Voltage - measured in V (volts)
E = Energy Transferred - measured in J (joules)
E = V x Q
Energy Transferred = Voltage x Charge
Resistance
R = Resistance - measured in (ohms)
V = Voltage - measured in V (volts)
R = V/I
I = Current - measured in A (amperes)
Resistance = Voltage/Current
Wave Speed, Frequency, Wavelength
V = Wave speed - measured in m/s (metres/seconds)
f = Frequency - measured in Hz (hertz)
V = f x
= Wavelength - measured in m (metres)
Wave speed = Frequency x Wavelength
Charge
I = Current - measured in A (amperes)
t = Time - measures in s (seconds)
Q = Charge - measured in C (coulombs)
Charge = Current x Time
Q = I x t
Frequency, Time Period
f = 1/t
f = Frequency - measured in Hz (hertz)
Frequency = 1/Time Period
t = Time period - measured in s (seconds)
Refractive Index, Angle of Incidence, Angle of refraction
n = Refractive index - no units
i = Angle of incidence - measured in degrees
n = Sin i/Sin r
r = Angle of refraction - measured in degrees
Refractive Index = Sin (angle of incidence)/ Sin (angle of refraction)
Critical Angle, Refractive Index
Sin (critical angle) = 1/Refractive Index
Sin c = 1/n
c = Critical angle - measured in degrees
n = Refractive Index - no units
Efficiency
Efficiency = Useful Energy Output/Total Energy Input x 100
Work Done, Force, Distance
W = Work done - measured in Nm (Newton/metres) or J (joules)
f = Force - measured in N (Newtons)
W = f x d
d = Distance - measured in m (metres)
Work done = Force x Distance
Gravitational Potential Energy, Mass, Gravitational Field Strength, Height
GPE = m x g x h
GPE = Gravitational potential energy - measured in J (joules)
Gravitational Potential Energy = Mass x Gravitational Field Strength x Height
m = Mass - measured in Kg (kilograms)
g = Gravitational field strength - measured in NKg (Newton/kilograms)
h = Height - measured in m (metres)
Kinetic Energy, Mass, Velocity
KE = Kinetic energy - measured in J (joules)
m = Mass - measured in Kg (kilograms)
KE = 1/2 x m x v
v = Velocity - measured in m/s (metres/seconds)
Kinetic Energy = 1/2 x Mass x Velocity
Power, Work Done, Time Taken
P = Power - measured in W (watts)
w = Work done - measured in J (joules)
P = w/t
t = Time taken - measured in s (seconds)
Power = Work done/Time taken