I/GCSE Physics Section 4 : Energy Resources and Energy Transfer

Work & Power

· physics,IGCSE Physics,IGCSE,energy,power

Work done

  • In I/GCSE physics, work done = force x distance
  • Work done is equal to energy transferred
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Power

  • Power = work done / time taken
  • The rate of energy transfer as it is where a lot of energy is transferred in a short period
  • It is measured in watts
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Gravitational Potential Energy

  • It is the energy stored in an object before it falls in I/GCSE physics
  • Gravitational potential energy = mass x g x height
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Kinetic Energy

  • Kinetic energy = ½ x mass x speed2
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Conservation of energy

  • Kinetic energy gained = gravitational potential energy lost
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End of this topic!

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