Formulas Flashcards
Wave speed
Wave speed = frequency x wavelength
3 equations for Energy transferred (work done)
Energy transferred (work done) = power x time
Energy transferred (work done) = charge flow x potential difference
Energy transferred (work done) = Force x distance
Charge
Charge = current x time
2 equations for potential difference
Potential difference = work done / charge
Potential difference = current x resistance
3 equations for power
Power = energy transferred / time
Power = potential difference x current
Power = current^2 x resistance
Speed
Speed = distance / time
Acceleration
Acceleration = Change in speed / time
Resultant force
Resultant force = Mass x Acceleration
Kinetic energy
KE = 1/2mv^2
Momentum
Momentum = mass x velocity
Weight
Weight = mass x gravitational field strength
Turning moment
Turning moment = Force x Distance
Gravitational potential energy
Gravitational potential energy = Mass x Gravitational field strength x height