Smooth Moves: Energy and change. Stage 2

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Australian Academy of Science, 2009 - Force and energy - 57 pages
Why do balls roll? Why do apples fall from trees? Why do some things slide across ice but not on carpet? What makes our bikes stop when we brake? We use all types of forces including friction, gravity and pushes and pulls when we exercise, ride bicycles and drive cars. Engineers and scientists use their knowledge of forces and motion to design things for our homes, work and school. The Smooth moves unit provides students with the opportunity to explore forces and motion. Through hands-on activities students identify forces that act at a distance and those that act in direct contact and investigate how different-sized forces affect the movement of objects.

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