Term
Speed = Distance Travelled
Time Taken 

Definition
Speed = KPH
Distance Travelled = Kilometres
Time Taken = Hours 


Term
Momentum = Mass x Velocity 

Definition
Momentum = kg m/s
Mass = kg
Velocity = m/s 


Term
Change of Momentum = Resultant Force x Time for which it acts 

Definition
Change of Momentum = kg m/s
Resultant Force = N
Time for which it acts = S 


Term
Changing Units
1 Newton in Kg 

Definition


Term
Changing Units
1kg in Newtons 

Definition


Term
Work Done by a Force = Force x Distance moved by the Force 

Definition
Work Done by a Force = J
Force = N
Distance moved by the Force = m 


Term
Change in Energy = Work Done 

Definition
Change in Energy = J
Work Done = J 


Term
Change in GPE = Weight x Vertical Height Difference 

Definition
Change in GPE = J
Weight = N
Vertical Height Difference = m 


Term
Kinetic Energy = 1 x Mass x [Velocity]^{2}
^{ 2} 

Definition
Kinetic Energy = J
Mass = kg
Velocity = [m/s]^{2} 


Term
Resistance = Voltage
Current


Definition
Resistance = Ω
Voltage = V
Current = Amps(A)



Term

Definition
Vp = Voltage across primary coil
Vs = Voltage across secondary coil
Np = Number of turns on primary coil
Ns = Number of turns on secondary coil 


Term
Energy Transfered(work done) = Power x Time 

Definition
Energy Transfered = J
Power = Watt (W)
Time = s 


Term
Power = Potential Difference x Current 

Definition
Power = Watt(W)
Potential Difference = V
Current = Amps(A) 


Term
Power = Voltage x Current 

Definition
Power = Watt(W)
Voltage = Volts(V)
Current = Amps(A)



Term
Energy Transferred when device is on = Power rating x time 

Definition
Energy Transferred when device is on = J OR KJ
Power Rating = W OR KW
Time = s or h 


Term
Wave Speed = Frequency x Wavelength 

Definition
Wave Speed = m/s OR mm/s
Frequency = Hz
Wavelength = m or mm 

