Five machines you find in a house

Pocket Genius Science: Energy and forces – Complex machines

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Facts At Your Fingertips: Energy and forces – Complex machines Simple machines can be combined to make complex machines. A pair of scissors is a complex machine that combines two types of simple machine—the blades as wedges and the handles as levers. The Space Shuttle was probably the most complex machine ever built, with more … Read more

Pocket Genius Science: Energy and forces – Simple machines

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Facts At Your Fingertips: Energy and forces – Simple machines We use simple machines to help us do our work more easily. There are six kinds of simple machine. They change the direction or size of a force, allowing us to use less effort when moving, separating, or keeping heavy objects in place. Inclined planes … Read more