1. Chapter 1-Lesson 1 Position and Motion Vocabulary
Science 8
Chapter 1-Lesson 1
Position and Motion
Vocabulary

2. relative
compared (to)

3. reference point
the starting point you choose to describe the location, or position, of an object
Reference point

4. position
an object’s distance in a certain direction from a reference point

5. positive direction
the reference direction (+)

6. negative direction
direction opposite the reference direction (-)

7. specify
to indicate or identify

8. dimension
distance or length measured in one direction

9. motion
the process of changing position

10. displacement
the difference between the initial (first) position and the final position of an object

11. distance
the length an object moves