1. Speed Velocity Acceleration
Motion
Speed
Velocity
Acceleration

2. Vocabulary Motion: A change in position Depends on reference point
Is the mom moving relative to the dad?
Is the mom moving if you were on the side of the road?

3. Speed The distance an object moves in a certain amount of time
Formula:

4. Unit for Speed Since the formula is
Then the unit for speed must be a unit of distance divided by a unit of time.
For example:
km/h
m/s

5. Speed
Look familiar?
Knowing any of the 2 variables, you can solve for the 3rd.

6. Calculate Speed
If you went to a Rihanna concert in Boston (100 km away) and it took you 2 hours, what was your average speed?
Use the 5 step method
List formula
List known and unknown values
Plug into formula
Show the math
Circle your answer WITH THE CORRECT UNIT!

7. Velocity
How far an object moves in a given amount of time AND the direction +
What was your velocity to the concert?

8. Acceleration A change in speed OR direction Speeding up Slowing down
Changing direction

9. Graphing Speed Distance (km) 25 50 75 100 125 Time (min) 20 40 60 8045 60 70
Distance (km) 25 40 55 65 75
Time (min) 5 15 30 45 70
Distance (km) 25 50
100
Time (min) 20 30 40 60

10. Interpreting Graphs
The shape, or slope, of the line tells the story!

11. Interpreting a Graph
Now you try!
What does each graph tell you?

12. Tell the Story!
What story does the graph tell you as you ride your bike to your friend’s house?