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Mini-Quiz: Effect of Friction in Ramps

by Ron Kurtus (29 June 2016)

Take this Mini-Quiz to check your understanding of the lesson material.



1. When does the ideal force mechanical advantage apply?

When the mechanical advantage equals 1

When there is no friction

When friction equals the mechanical advantage

2. How does friction change with increase angle of inclination?

Friction is reduced with an increased angle

Friction is independent of the angle

Friction is increased with an increased angle

3. What happens when the inclined angle is zero?

The mechanical advantage with friction becomes the ideal

It is no longer an inclined ramp and the mechanical advantage is meaningless

The object starts moving by itself

If you got all three correct, you are on your way to becoming a Champion in Understanding Machines. If you had problems, you had better look over the material again.


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