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Interactive resource

Energy and power

Learn how work and energy are related, and how the energy of systems can be used to solve problems about motion. Identify situations in which mechanical energy is conserved. Calculate the power of moving objects. This resource consists of a video in six sections with a supporting web page containing background material.

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Horsedrawn whim on a gold field at Gympie, 1870-80

This is a black-and-white photograph of the minehead area at a Queensland goldmine. It shows the mine's headframe and a horsedrawn 'whim'. The whim consists of a wooden derrick construction with two large vertically mounted drums at its centre, one with a rope wound around it. The rope is connected at one end to the swivel ...