Equations

• What is the word equation for weight?

  Weight = mass × gravitational field strength
• What is the symbol equation for weight?

  W = mg
• What is the word equation for work done?

  Work done = force × distance
• What is the symbol equation for work done?

  W = Fs
• What is the word equation for force applied to a spring?

  Force applied to a spring = spring constant × extension
• What is the symbol equation for force applied to a spring?

  F = kx
• What is the word equation for the moment of a force?

  Moment of a force = force × distance
• What is the symbol equation for the moment of a force?

  M = Fd
• What is the word equation for pressure?

  Pressure = force normal to a surface
• What is the symbol equation for pressure?

  p = F/A
• What is the word equation for distance travelled?

  Distance travelled = speed × time
• What is the symbol equation for distance travelled?

  s = vt
• What is the word equation for acceleration?

  Acceleration = change in velocity
• What is the symbol equation for acceleration?

  a = Δv/t
• What is the word equation for resultant force?

  Resultant force = mass × acceleration
• What is the symbol equation for resultant force?

  F = ma
• What is the word equation for momentum?

  Momentum = mass × velocity
• What is the symbol equation for momentum?

  p = mv
• What is the word equation for kinetic energy?

  Kinetic energy = 0.5 × mass × (speed)²
• What is the symbol equation for kinetic energy?

  Ek = ½mv²
• What is the word equation for gravitational potential energy?

  Gravitational potential energy = mass × gravitational field strength × height
• What is the symbol equation for gravitational potential energy?

  Ep = mgh
• What is the word equation for power?

  Power = energy transferred
• What is the symbol equation for power in terms of energy transferred?

  P = E/t
• What is the symbol equation for power in terms of work done?

  P = W/t
• What is the word equation for efficiency?

  Efficiency = useful output energy transfer
• What is the symbol equation for efficiency?

  efficiency = useful power output / total power input
• What is the word equation for wave speed?

  Wave speed = frequency × wavelength
• What is the symbol equation for wave speed?

  v = fλ
• What is the word equation for charge flow?

  Charge flow = current × time
• What is the symbol equation for charge flow?

  Q = It
• What is the word equation for potential difference?

  Potential difference = current × resistance
• What is the symbol equation for potential difference?

  V = IR
• What is the word equation for power in terms of potential difference?

  Power = potential difference × current
• What is the symbol equation for power in terms of potential difference?

  P = IV
• What is the word equation for power in terms of current?

  Power = current² × resistance
• What is the symbol equation for power in terms of current?

  P = I²R
• What is the word equation for energy transferred?

  Energy transferred = power × time
• What is the symbol equation for energy transferred?

  E = Pt
• What is the word equation for pressure due to a column of liquid?

  Pressure due to a column of liquid = height of column × density of liquid × gravitational field strength