2. Speed: the distance an object travels per unit of time Speed = distance / time Average speed = total distance / total time Solve: A whitetail deer runs 33 meters in 3 seconds. What is its speed?

3. Motion – when the distance from another object is changing. / Reference point – a place or object used for comparison to determine if an object is in motion.

4. Velocity / This occurs when you know both the speed and direction of an object’s motion. / In other words: Speed in a given direction. / Example 25 km/h East / This occurs when you know both the speed and direction of an object’s motion. / In other words: Speed in a given direction. / Example 25 km/h East

5. Acceleration / The change in velocity or speed per unit of time / Three conditions: Increase in speed Decrease in speed Change in direction / The change in velocity or speed per unit of time / Three conditions: Increase in speed Decrease in speed Change in direction Formula: Final speed – Initial speed / Time

6. How is this player accelerating?

7. Acceleration

8. Units of Measurement / Time - s or hr / Distance -cm, m, km / Speed - m/s, km/hr / Velocity - m/s North / Acceleration - m/s 2, km/hr 2 / Time - s or hr / Distance -cm, m, km / Speed - m/s, km/hr / Velocity - m/s North / Acceleration - m/s 2, km/hr 2

9. Solve / A family takes a trip. They travel for an hour at 50 km/hr and then for two hours at 25 km/h. What is their average speed? / Mike’s skateboard accelerates from 6 m/s to 48 m/s in 6 seconds. What is his rate of acceleration? / A football player threw a football 60 m through the air. While in flight, the ball traveled an average speed of 25 m/s. How long did the ball stay in the air? / How far can a turtle travel if its speed is 20 m/hr and its time is 1.5 hr? / A family takes a trip. They travel for an hour at 50 km/hr and then for two hours at 25 km/h. What is their average speed? / Mike’s skateboard accelerates from 6 m/s to 48 m/s in 6 seconds. What is his rate of acceleration? / A football player threw a football 60 m through the air. While in flight, the ball traveled an average speed of 25 m/s. How long did the ball stay in the air? / How far can a turtle travel if its speed is 20 m/hr and its time is 1.5 hr?

10. Read the graph and answer the questions on the study guide. Distance is measured in meters Time is measured in seconds Distance vs. Time of a Person Walking