1. Distance -Time Graphs Position -Time Graphs Linear
d/t graphs

2. Quantities Scalar- A quantity with magnitude only Examples:
Vector- A quantity with magnitude and direction(can be a negative number) Examples:

3. Terms Distance-Separations between two points
Position-Object’s placement with respect to a reference point
Displacement-change in position of an object. Formula(df – di )
Speed-distance an object travels over time
Velocity- is speed and a direction(change in position over time)

4. Information that can be determined from d/t graphs
1. Distance = Just read it off the graph

5. Info continued
2.Slope of a d/t = average speed or velocity. Pay attention to what object is doing….Formula is

8. 3. Instantaneous Speed =Cannot be determined using a position time graph unless object is moving at constant speed.

9. Non Linear d/t Graphs
Distance-Read it off the graph

10. Non Linear d/t graphs Slope must be determined by a tangent to the curve

12. 3. Instantaneous Speed =Can only be done with a tangent to the curve.

13. Fundamental Units in Physics
Mass-
Kilograms
Time-
Seconds
Length –
Meters
Acceleration-
m/s2
Units for speed or velocity
Km/hr-kilometers per hour
m/s- meters per second

14. Calculating Speed (Velocity)

15. Velocity Word Problems
A car travels 6.02m in 3.50sec. What is the car’s velocity?
A dog chases a rabbit at 3.42m/s for 8.63m. How much time did this take the dog?

16. Ms. Polasek travels from her room at 3. 02m/s for 12. 3s
Ms. Polasek travels from her room at 3.02m/s for 12.3s. How far did she travel?