Example of Pulley Simple Machine at Home - 搜索视频

Simple Machines: Pulley Craft

Simple Machines: Pulley Craft

For this Simple Machines: Pulley Craft activity, you will need: cardboard bottle top scissors white glue cereal box craft knife (optional) skewer ruler (optional) 2 toothpicks 4 elastic bands string or twine strong glue small ziplock bag hole punch

twinkl.co.uk2019年3月26日

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How Does A Pulley System Work?

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Force on a pulley

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