1 / 5

8.2 Speed Vs Velocity

8.2 Speed Vs Velocity. Speed (v): the distance an objects travels over a given time interval scalar quantity, SI unit is m/s Velocity: ( v ) describes the displacement of an object during a given time interval OR how fast an object’s position is changing

uyen
Télécharger la présentation

8.2 Speed Vs Velocity

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 8.2 Speed Vs Velocity Speed (v): • the distance an objects travels over a given time interval • scalar quantity, SI unit is m/s Velocity: ( v ) • describes the displacement of an object during a given time interval OR how fast an object’s position is changing • velocity can be zero, negative or positive • scalar quantity, SI unit is m/s

  2. Position Time Graphs & Average Velocity • The slope of a position time graph = average velocity • The rate of change in position for a time interval of an object • Vector quantity, represented as: Vav • Positive Velocity = object is moving away from the origin with uniform speed • Zero Velocity = object is stationary • Negative Velocity = object is returning to its origin with uniform motion

  3. Velocity • 2 People Racing (text pg. 364) Recall the equation for Average Velocity! = df – di OR = RISE tf – ti RUN

  4. Position Time Graph of Racers Solve the following: • 1. Who is going faster? How do you know? • Who has the greatest velocity?

  5. Converting Units Converting between m/s to km/h • Recall: there are 60 s in 1 min and 3600 s in 1 hr • Recall: there are 1000 m in 1 km Example: 55km x (1000m) x (1 h) = 15 m/s [W] 1 h (1km) (3600s)

More Related