Formulas Flashcards
Average Speed
Average Speed = Distance/Time
Average Velocity
Average Velocity = Displacement/Time
Acceleration
Acceleration = Final velocity - Initial Velocity/Time
Work
Work = Force x Distance moved
Power
Power = Work/Time
Gravitational Potential Energy
GPE = Mass x Gravity x Height
Efficiency
Efficiency = useful power output/total power input x 100
Efficiency = useful ENERGY output/total energy input x 100
Current
Current = Charge/Time
Power
Power = Current x Voltage
Resistors in series
Resistors in series : Total Resistance = R1 + R2…
Resistors in parallel
Resistors in parallel: 1/R1 + 1/R2…
Resistance
Resistance = Resistivity x Length/Area
Potential difference
P.d (joules per coulomb) = E/Q
Pressure and forces
F = P x A
Force
F = Mass x Acceleration