1. Chapter 5 Section 1
Motion

2. Motion
Reference point – a point used to compare the distance of an object to
Motion – when an object changes its position from a reference point
Position – measure of length away from a reference point
Distance – measure of length traveled along a path from a reference point

3. Speed Speed – rate at which an object changes its distance distance
time

4. Units
miles per hour
SI Units

5. Velocity Velocity – speed + direction Sign indicates direction
on a graph:
- negative = towards reference point
+ positive = away from reference point

6. in real life: - negative = + positive = south, west, down, left
north, east, up, right

7. Resultant Velocity
Resultant velocity – total velocity of an object moving within another moving object.
1) Change directions to positive and negative signs
2) Plug numbers into equation
3) Change sign back to direction

8. Acceleration
acceleration – rate at which an object changes its velocity.
final velocity
initial velocity
acceleration
time

9. Units miles per hour per second SI Units meters per second per second=