Physics has to do with simple machines

[amandamolegir]

Homework Statement

1.) What are the five uses of simple machines?

2.) A bicycle is a combination of simple machines. What are at least three things that can be done to increase the efficiency of a bicycle?

3.) Give an example of a device that is a lever that increases force, but does not change direction of the force?

4.) Give an example of a device that is a wheel and axle
a,) that increases the output speed
b.) that increases the output force
5.) In using a screwdriver, what is the advantage of using one that has a really fat handle?

6.) In using a screwdriver, what is the disadvantage of using one that has a really fat handle?

 

[mgb_phys]

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