1 / 10

Acceleration

Acceleration. unit 6.2 year 10. Introduction. An often confused quantity, acceleration has a meaning much different than the meaning associated with it by sports announcers and other individuals. Acceleration.

powa
Download Presentation

Acceleration

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. Acceleration unit 6.2 year 10

  2. Introduction • An often confused quantity, acceleration has a meaning much different than the meaning associated with it by sports announcers and other individuals.

  3. Acceleration • Acceleration is a vector quantity that is defined as the rate at which an object changes its velocity • An object is accelerating if it is changing its velocity.

  4. Acceleration • Teacher demonstration • As an object fall it accelerates due to the force of gravity.

  5. Constant acceleration • Sometimes an accelerating object will change its velocity by the same amount each second. This is referred to as a constant acceleration since the velocity is changing by a constant amount each second.

  6. Calculating the Average Acceleration [ vav] • The average acceleration (a) of any object over a given interval of time (t) can be calculated using the equations

  7. Symbols • Δ is the letter Delta from the Greek alphabet. It means a change in. • Example: Δt = a change in time

  8. Units • Acceleration values are expressed in units of velocity/time. Typical acceleration units include the following: • m/s/s • km/hr/s • ms-2 • m/s2

  9. Acceleration and graphs High acceleration is a rapid increase in speed. The speed–time graph would be a steeper one than if you accelerated at a lesser rate; that is, the slope or gradient of a speed–time graph gives us the rate of acceleration.

  10. Animation • Direction of Acceleration and Velocity

More Related