formulas

Equation that links distance, speed and time

Distance = speed * time

Speed = distance / time

Time = distance / speed

Equation for acceleration

Change in speed / change in time

Equation that links weight, mass and gravity

Weight = mass * gravity

Mass = weight / gravity

Gravity = weight / mass

Equations that link density mass and volume

Mass = density * volume

Density = mass / volume

Volume = mass / density

Equation that links force, mass and acceleration

Force = mass * acceleration

Acceleration = force / mass

Mass = force / acceleration

Formula for kinetic energy

½ x mass x v²

Formula for potential energy

Potential energy = mgh

Equation for change in gravitational potential energy

M * g * change in height

Equations that link work, force and distance

Work = force * distance

Distance = work / force

Force = work / distance

Formula for power

Power = energy / time

Equations that link work done, power and time

Work done = power * time

Power = work done / time

Time = work done / power

Formula for efficiency

Useful energy out / total energy output * 100 or useful power output / total power output * 100

Equations that link pressure, force, and area

Pressure = force / area

Force = pressure * area

Area = force / pressure

The wave equation

Wave speed = frequency * wavelength

Equations that link charge, current, and time

Charge = current * time

Equation that links resistance, voltage and current

Voltage = current * resistance

Equation that links power, current and voltage

Power = current * voltage

Combined resistance in series

R1 + R2

Combined resistance in parallel

1/R1 + 1/R2

Equation for moles

Moles = mass / molar mass