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Speed: the distance an object travels per unit of time

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?. How do you know this boat is in motion?. What can be used as a reference point?. Velocity.

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Speed: the distance an object travels per unit of time

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  1. 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?

  2. How do you know this boat is in motion? • What can be used as a reference point?

  3. 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

  4. Velocity and Acceleration • How does the running back show both speed and acceleration?

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

  6. Acceleration

  7. Units of Measurement • Time - s or hr • Distance -cm, m, km • Speed - m/s, km/hr • Velocity - m/s North, • Acceleration - m/s2, km/hr2

  8. 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?

  9. This graph shows the motion of a helicopter. Use this graph to answer the questions for “Slide 9”

  10. Use this graph to answer the questions on “Slide 10”

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