This video segment from IdahoPTV's D4K shows examples of the 6 simple machines: lever, pulley, wheel and axel, inclined plane, wedge and screw ...
D4K: “Simple Machines"
Visit the D4K companion Web site to learn more about Simple Machines: D4K: “Simple Machines"
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- Find all the simple machines you can see from where you are sitting.
- How does an inclined plane make work easier?
- Which simple machine is used to split things apart or hold a door open?
- Is a door knob a simple machine? Is so, which one?