In KS2 D and T children are taught about the moving parts in machines. This is a broad topic covering pneumatic, linkage, cam and pulley systems, as well as more simple moving parts - for example, a slider in a children's book
Moving parts are those parts in a machine that are not fixed, and they can seem to make products come alive. There are different systems which make parts move - diggers can use pneumatic or hydraulic systems, a pulley is used to lift heavy weights, and cams can change a circular motion into an up and down one. Machines comprise both moving and fixed parts. There are many moving parts in a car which enable us to drive it.
Test yourself on pneumatic, linkage, cam and pulley systems. Can you get all 10 questions right?
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