1 / 7

Intro to linear motion

Intro to linear motion. What is a rate?. A rate tells us how fast something happens, or how much something changes in a certain amount of time. For example, a quantity divided by time (miles per hour -- mph). Speed. Speed is a rate.

amaya-bradshaw
Download Presentation

Intro to linear motion

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. Intro to linear motion

  2. What is a rate? • A rate tells us how fast something happens, or how much something changes in a certain amount of time. • For example, a quantity divided by time (miles per hour -- mph)

  3. Speed • Speed is a rate. • Speed – a measure of how fast something is moving. It is the rate at which distance is covered. • Units: miles/hr, m/s, km/hr

  4. Instantaneous vs average • Instantaneous speed is the speed at a given instance. • For ex: The speed on a car’s speedometer • Average speed does not indicate variations in the speed that may take place during a trip. Instead, it is the total distance covered divided by the total time.

  5. Average speed Average speed = Total distance covered Time interval

  6. Speed vs. Velocity • The ball is passed to you during a football game. What do you do? • Velocity is speed plus direction.

  7. Constant & Changing Velocity • Constant velocity is when both the speed and direction are constant. • If either the speed or direction (or both) are changing, then the velocity it changing.

More Related