Power and work done

• Power is the rate at which energy is transferred, or work is done.
• ‘Work done’ refers to the energy transfer that occurs when a force is used to move an object by a certain distance.
• Formula for power..

  P = E / T

  P = W / T
• What are the units of power?

  Watts (W)
• A toaster consumes 40,500 J in 45 s, what is it’s power consumption?

  40,500 / 45 = 900