1 / 8

Friction

Friction. Instructor: Shelia Chase. Definition. Friction Force ( Ffrict ): The force exerted by a surface as an object moves across it. There are at least two types of friction force - sliding and static friction.

elon
Télécharger la présentation

Friction

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. Friction Instructor: Shelia Chase

  2. Definition Friction Force (Ffrict): The force exerted by a surface as an object moves across it. There are at least two types of friction force - sliding and static friction.

  3. The friction force often opposes the motion of an object. For example, if a book slides across the surface of a desk, then the desk exerts a friction force in the opposite direction of its motion. Friction results from the two surfaces being pressed together closely, causing intermolecular attractive forces between molecules of different surfaces.

  4. Friction depends upon the nature of the two surfaces and upon the degree to which they are pressed together. The maximum amount of friction force that a surface can exert upon an object can be calculated using the formula: Ffrict = µ • Fnorm

  5. Friction On Inclined Planes and Other Types of Friction Eureka! Mechanical Advantage and Friction

  6. Practice

  7. Homework Print off the Friction Lesson 22 worksheet, complete and we will review them together during the next lesson.

  8. Physics is fun!

More Related