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© Boardworks Ltd 20131 of 7. © Boardworks Ltd 20132 of 7 This is an excerpt from the “What is Energy” presentation in Boardworks Science for Australia,

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Presentation on theme: "© Boardworks Ltd 20131 of 7. © Boardworks Ltd 20132 of 7 This is an excerpt from the “What is Energy” presentation in Boardworks Science for Australia,"— Presentation transcript:

1 © Boardworks Ltd 20131 of 7

2 © Boardworks Ltd 20132 of 7 This is an excerpt from the “What is Energy” presentation in Boardworks Science for Australia, which contains 221 presentations in total.

3 3 of 7© Boardworks Ltd 2013 What is energy?

4 4 of 7© Boardworks Ltd 2013 Energy can be defined as the ability to do work. It exists in many forms and can be changed from one form to another. What is energy? What other energy transfers can you think of? Chemical energy in food is converted to thermal energy and kinetic energy by our bodies. Gravitational potential energy in a ball is converted to kinetic energy when it falls to the ground. In all these transfers the energy is not lost, it is conserved. Energy cannot be destroyed or created. For example:

5 5 of 7© Boardworks Ltd 2013 Can you think of examples of each type of energy? There are many different types of energy: thermal light sound elastic gravitational kinetic electrical chemical nuclear Different types of energy

6 6 of 7© Boardworks Ltd 2013 Different types of energy

7 7 of 7© Boardworks Ltd 2013 Converting energy


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