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Electricity

P = V x I.    Power = Voltage x Current.  

      V = I x R.    Voltage = Current x Resistance.

Q = I x t.     Charge = Current x time.     

E = V x Q.     Energy = Voltage x Charge.

       E = V x I x t.     Energy = Voltage x Current x time.


Transformer Equation
Transformer Equation

Total Cost(Not required)  =  Number of Units x Cost per Unit.


Energy

           Efficiency (%)  =  (useful energy out ÷ total energy in) x 100.

GPE = mgh.      GPE = mass x gravity x height.      

       KE  =  ½mv2.     Kinetic Energy = 0·5 x mass x velocity2.

W = F x d.      Work done = Force x distance.   

      W = E.      Work done = Energy transferred.

P = E ÷ t.      Power = Energy ÷ time.            

E = c x m x .   Energy = specific heat capacity x mass x change in temperature.


Forces and Motion

s = d ÷ t.     speed = distance ÷ time.  

               a = (v-u) ÷ t.      acceleration = change in velocity ÷ time.

   F = m x a.      Force = mass x acceleration.

w = m x g.     weight = mass x gravity.      

   p = m x v.     momentum = mass x velocity.

   (mv - mu) = F x t.     change in momentum = Force x time.

d = m ÷ v.     density = mass ÷ volume.     

                            m = F x d.    moment = Force x perpendicular distance from pivot.

p = F ÷ a.                pressure = Force ÷ area.    


Waves

   v = f x l.     velocity  =  frequency wavelength.

Atomic number
Aircraft Equations of Motion
Aircarft height units
Amperes
Acceleration
Current
Coulomb
Charge
Density
Distance of flight in nautical miles
Energy
Electricity
Frequency
Gravity
Engine efficiency
Force
Heat
Height
Hertz
Mass
Mass number
Momentum
Motion
Moment
Power
Pressure
Resistance
Ramp weight of an Aircraft
Rate of fuel burn of an Aircraft
Speed
Specific gravity
Temperature
Velocity
Voltage
Weight
Wavelength
36 topics