Question

The threads of a screw are an inclined plane wrapped around a post. How does a screw make the work of fastening two objects together easier?

Answer 1

A.
The screw changes the direction of a force - it converts rotational force into linear force. It also reduces the force required - the closer the threads, the larger the input force required to get the same output force.

B.
The screw changes the direction of a force - it converts linear force into rotational force. It also reduces the force required - the closer the threads, the larger the input force required to get the same output force.

C.
The screw changes the direction of a force - it converts linear force into rotational force. It also reduces the force required - the closer the threads, the smaller the input force required to get the same output force.

D.
The screw changes the direction of a force - it converts rotational force into linear force. It also reduces the force required - the closer the threads, the smaller the input force required to get the same output force.

Answer 2

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Answer 3

Mass tagging gets you know where....

Answer 4

I would say D. The screw changes the direction of a force - it converts rotational force into linear force. It also reduces the force required - the closer the threads, the smaller the input force required to get the same output force.

Answer 5

But what do you think?

Answer 6

at first i thought it was B. but now that i look at it, i think you're right!

Answer 7

Go for it mate. Good luck.

Answer 8

@fallenangelorchid you were right! Thank you sooooo much!

Answer 9

Anytime lassie, glad I could help. =)