© Oxford University Press 2011 IP1.12.4 Energy transfers Energy transfers.

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© Oxford University Press 2011 IP Energy transfers Energy transfers

© Oxford University Press 2011 IP Energy transfers Remember energy cannot be created or destroyed. It can only be transferred from one form to another.

© Oxford University Press 2011 IP Energy transfers Here is a list of some of the different forms of energy: electrical kinetic light elastic potential gravitational potential heat wind sound

© Oxford University Press 2011 IP Energy transfers Look at this wind-up torch. Can you explain the energy transfer needed to make it work? kinetic  electrical  light + heat

© Oxford University Press 2011 IP Energy transfers What about this wind turbine? Can you explain the energy transfers that are taking place? kinetic  electrical + heat + sound

© Oxford University Press 2011 IP Energy transfers What energy transfer is taking place in this kettle? Electrical  heat + sound

© Oxford University Press 2011 IP Energy transfers Imagine a ball at the top of a hill. What form of energy does the ball have? Gravitational potential What form of energy is the potential energy transferred to when the ball rolls down the hill? Kinetic

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