1. What is Motion?

2. Motion All matter in the universe is in constant motion
An object is in motion if it changes positions
Relative motion uses a starting point to determine if an object has moved (Reference Point)

3. Distance Distance is how far you have traveled
Displacement is the distance between starting and ending points and the direction traveled
(meters)
Displacement

4. Speed Speed- Distance an object travels in a unit of time
Speed (meter/second)=Distance/Time
S=D/T
Average Speed- Divide the total distance traveled by the total time taken.
Instantaneous Speed- Speed of an object at one instant of time

5. Graphing Motion
Can represent motion of an object with a distance-time graph
Can be used to compare the speeds of objects
Object 1
Object 2

6. Velocity Velocity- Speed of the object and the direction of its motion
Sometimes represented by an arrow
Velocity can change if speed changes, direction of motion changes, or both
3 Different Velocities

7. Acceleration The rate in which velocity changes.
You must calculate the change in speed per unit of time.
Acceleration = Final speed – Initial speed/ Time