scale, blood flows in arteries and veins while ions migrate across the nervous system.

In this unit we are going to describe motion in ways that just about anyone can understand. to work. Let's begin with the idea of position as a first step in understanding motion. Then we'll develop some ways to think about what happens when an object's position changes.

Part $1$ of $5-$ Position

To talk about motion, we must first consider an object's position.

Simply put, a position tells us where an object is located. my house," or "the glass is $5$ inches to the right of the center of the table."

Which one of the following is a valid position?

Los Angeles is $358$ miles away.

Los Angeles is $358$ miles west of Phoenix.

Los Angeles is $358$ miles from Phoenix.

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