Equations

• What is the equation that links energy, power and time?

  Power = Energy/Time

  P=E/t
• What is the equation that links current, power and resistance?

  Power= Current^2 × Resistance

  P=I^2R
• What is the equation that links current, power and potential difference?

  Power= potential difference × current

  P=VI
• What is the equation that links charge flow, energy and potential difference?

  Energy=  Charge flow × Potential difference 

  E=QV
• What is the equation that links energy, mass and specific latent heat?

  Energy=  Mass × Specific latent heat (J/kg)

  E=mL
• What is the equation that links charge flow, current and time?

  Charge flow =  current × time 

  (Coulombs,C)

  Q=It
• What is the equation that links current, potential difference and resistance?

  Potential difference= Current × Resistance

  V=IR
• What is the equation that links energy, mass, specific heat capacity and temperature change?

  Energy=  Mass × Specific heat capacity  × Temperature change 

  θE= m×c×Δθ
• What is the equation that links energy, extension and spring constant?

  Energy=  1/2 × Spring constant× Extension ^2

  E= 1/2×k×e^2
• What is the equation that links energy, mass and velocity?

  Energy=  1/2 × Mass × Velocity^2 (m/s)

  E=1/2×m×v^2
• What is the equation that links energy, height, mass and gravitational field strength?

  Energy=  Mass ×  Gravitational field strength (N/kg) × Height 

  E=mgh
• What is the equation that links gravitational field strength, mass and weight?

  Weight = mass x gravitational field strength

  W=mg