Do you know machines?

1. Complete the table.

What forces you know?  What these forces can do?
   
   
   
   

2. Why do we need machines?..................................................................
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3. What simple machines do you see in the picture.
3-5-15-4.jpg (66277 bytes)

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4. What kind of simple machines make a faucet?
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5. Draw a combined machine.

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