What is the unit for density?

g/cm3 or kg/m3

What is the unit for charge flow?

Columbs, C

What is the equation relating pressure, force and area?

pressure = force / area

What is the unit for resistance?

Ohms

What is the equation relating power, work done and time?

Power = work done / time or Work done = power x time

What is the unit for speed?

m/s

What is the equation relating power, current and resistance?

Power = current^2 x resistance

What is the unit for gravitational potential energy?

J

What is the unit for mass?

kg

What is the unit for force?

Newtons

What is the unit for moment?

Nm

What is the equation for efficiency?

efficiency = useful power/energy / total power/energy

What is the unit for weight?

N (it is a force)

What is the unit for momentum?

kgm/s

What is the equation relating wave speed, frequency and wavelength?

wave speed = wavelength x frequency

What is the equation relating power, energy transferred and time?

Power = energy transferred / time

What is the equation that relates energy transferred, power and time?

Energy transferred = power x time

What is the equation relating charge flow, current and time?

Charge flow = current x time

What is the equation for gravitational potential energy?

G.P.E = mass x gravity x height

What is the unit for acceleration?

m/s2

What is the equation relating work done, force and distance?

work done = force x distance

What is the unit for pressure?

N/m2 or Pa

What is the equation relating force, mass and acceleration?

force = mass x acceleration

What is the unit for wavelength?

m

What is the unit for potential difference?

Volts, V

What is the equation relating potential difference, current and resistance?

Potential difference = current x resistance

What is the unit for work done?

J or Nm

What is the unit for wave speed?

m/s

What is the equation relating acceleration, change in velocity (speed) and time?

acceleration = change in speed / time taken

What is the equation relating force in a spring. spring constant and extension?

force = spring constant x extension

What is the equation that relates moment, force and distance?

Moment = force x distance

What is the equation relating momentum, speed and mass? (Higher Tier Only)

momentum = speed x mass

What is the unit for power?

Watt, W

What is the equation relating weight, mass and gravitational field strength?

weight = mass x gravitational field strength

What is the equation that relates energy transferred, potential difference and charge flow?

Energy transferred = potential difference x charge flow

What is the unit for current?

Amps, A

What is the unit for frequency?

Hz

What is the equation relating power, potential difference and current?

Power = potential difference x current

What is the unit for kinetic energy?

J, Joules (all energy has units Joules)

What is the equation that relates density, mass and volume?

density = mass / volume

What is the equation relating speed, distance and time?

Distance = speed x time or Speed = distance / time

What is the equation for kinetic energy?

kinetic energy = 1/2 x mass x speed^2