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What is a screw? Give two examples where screws are used.

Important Questions on Force and Machine

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Science>Physics>Force and Machine>Types of Simple Machines
In what ways is a screw better than a nail?
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Science>Physics>Force and Machine>Types of Simple Machines
The spiral groove in a screw is called thread.
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Science>Physics>Force and Machine>Types of Simple Machines

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The above-shown figure is of which simple machine: _____. [pulley/screw/wedge]

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Science>Physics>Force and Machine>Types of Simple Machines
Which of these is an example of a screw?
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Science>Physics>Force and Machine>Types of Simple Machines
A _____ is a machine which looks like a nail with grooves cut into it.
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Science>Physics>Force and Machine>Types of Simple Machines

Give reason.

A screw's strength depends on its threads.   

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Science>Physics>Force and Machine>Types of Simple Machines
What is the screw? Mention its uses.
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Science>Physics>Force and Machine>Types of Simple Machines
A _____ looks like a nail with grooves cut into it.
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Science>Physics>Force and Machine>Types of Simple Machines

A screw is a long nail with a spiral _____  (lever/screw) type of simple machine.

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Science>Physics>Force and Machine>Types of Simple Machines
A modification of inclined plane that has threads _____.
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Science>Physics>Force and Machine>Types of Simple Machines
A screw is used for holding objects together.
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Science>Physics>Force and Machine>Types of Simple Machines
Define screw.
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Science>Physics>Force and Machine>Types of Simple Machines
Give two examples where screws are used.
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Science>Physics>Force and Machine>Types of Simple Machines
What is a screw?
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Science>Physics>Force and Machine>Types of Simple Machines
Which of these is a modification of an inclined plane?
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Science>Physics>Force and Machine>Types of Simple Machines
What is a screw's power depended on?    
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Science>Physics>Force and Machine>Types of Simple Machines

Write, draw and colour two examples of screw.

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Science>Physics>Force and Machine>Types of Simple Machines

Join the dots. Identify the simple machine and write its name in the space provided. 

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Science>Physics>Force and Machine>Types of Simple Machines
What does a screw's power depend on?
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Science>Physics>Force and Machine>Types of Simple Machines
Why is a screw better than a nail to join two objects?