1. Motion

2. How do we know something is moving?

7. Frame of Reference  To tell an object is moving we must compare the object to something else.  A reference point is an object used to determine another objects motion.

10. Motion  Motion is the change in position of an object over time.

11. Speed/Rate and Velocity  Speed/Rate is the distance an object moves in a certain period of time.  Velocity is the speed of an object in a specific direction.  To solve for speed, take the distance and divide the time.

12.  Stevenson Digs Tacos

13. Graphing Motion  Line Graph-Time vs. Distance  The slope of two points on the graph will tell you the speed.

15. Solving For Speed  If Mr. Cleland runs 10 meters in 2 seconds, what is his speed?  5 m/s  If Mr. Parke throws a baseball 12 meters in 4 seconds, what is the speed of the ball?  3 m/s

16.  Time=distance/speed  Distance=time x speed  If Mr. Whiting runs 15 meters at a speed of 3 m/s, how long does it take him?  5 seconds  If Ms. Hetrick runs for 5 seconds at a speed of 4 m/s, how far has she ran?  20 meters

17. Acceleration  The rate speed/rate at which velocity changes.  If speed or direction change.  Acceleration is final speed – starting speed divided by time.

18.  If Mrs. Greiser is driving and accelerates from 10 m/s to 16 m/s in 3 s, what is her acceleration?  2 m/s^2

19. Graphing Acceleration  Line Graph-Time VS Speed