Physics Equations Flashcards
Momentum
momentum = mass x velocity
p=mv
Average Speed
Average speed = total distance / total time
Acceleration
Acceleration = change of velocity / time taken
Force
Force = mass x acceleration F = ma
Impulse
Impulse = mass x (final veloctiy - initial velocity)
Kinetic Energy
Kinetic Energy = 1/2 x mass x final velocity ^2 (squared)
Potential Energy
Potential Energy = mass x gravity x change in height
Efficiency (energy)
Efficiency = useful energy output / energy input
x 100
Efficiency (power)
Efficiency = useful power output / power input
x 100
Work
Work = Force x distance = Change in Energy
Power
Power = Change in Energy / time
Pressure
Pressure = Force / Area
Thermal Capacity
Thermal Capacity = mass x capacity
Energy
Energy = mass x light x change in Temperature
Energy {v2}
Energy = mass x specific latent heat
Wave Velocity
Wave Velocity = Wave Frequency x Wave Length
Critical Angle {v2}
Critical Angle = sin i (Angle of Incidence) / sin r (Angle of Reflection)
Critical Angle
Critical Angle = 1 / sin c (Critical Angle)
Current
Current = Coulomb of charge / time
Resistance
Resistance = Volt / Current
Power {v2}
Power = Current / Volt
Electricity
Electricity = Current x Volt x time
Transformers (/)
Primary Voltage / Secondary Voltage = Primary Number of turns / Secondary Number of turns
Transformers (x)
Primary Current x Primary Voltage = Secondary Current x Secondary Voltage
