In this machines worksheet, students are given a list of 13 actions that simple machines perform and they must find a tool that completes each action in the list.
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Why Don't Perpetual Motion Machines Ever Work?
It turns out that some laws were definitely not meant to be broken! A short illustrative video explains why the first and second laws of thermodynamics prevent perpetual motion machines from actually moving perpetually — and why...
6 mins 6th - 12th Science CCSS: Adaptable