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# Mini-Quiz: Motion and the Law of Inertia

by Ron Kurtus (28 October 2007)

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

1. If you see something move, what can you assume?

The Law of Inertia no longer works

You are imagining things

A force was applied on the object to move it

2. If moving objects are supposed to continue moving, why do things often slow down and stop?

Newton's laws only apply to certain objects

Often the force of friction causes objects to stop

It inertia caused it to become motionless

3. If things are supposed to go in straight lines, why does a ball you throw curve downward?

The force of gravity changed its direction

Balls are an exception to the rule

No one really can figure the reason for that

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

Keep moving frward with inertia

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