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A toothbrush is not a simple machine, it does not work on the principle of levers, effort, and load.

It's not a machine at all in mathematical terms. A "machine" is that which performs "work", i.e. transfers or converts energy.

You arm moving the toothbrush is a machine by this definition, however.

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Wiki User

9y ago
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Wiki User

12y ago

i think it is a lever

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Q: What kind of simple machine is a toothbrush?
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