work and power n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Work and Power PowerPoint Presentation
Download Presentation
Work and Power

Loading in 2 Seconds...

play fullscreen
1 / 6

Work and Power - PowerPoint PPT Presentation


  • 97 Views
  • Uploaded on

Work and Power. Work is done when a force is exerted on an object and the object moves a distance x. Work = force ·distance W = F · d units: N·m = Joule Work is a scalar quantity. For work to be done, Force exerted must be in same linear plane as distance. Work.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Work and Power' - beverly-bishop


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.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
work and power
Work and Power

Work is done when a force is exerted on an object and the object moves a distance x.

Work = force ·distance

W = F · d

units: N·m = Joule

Work is a scalar quantity. For work to be done, Force exerted must be in same linear plane as distance.

slide2
Work

When you hold something, are you exerting a force on the object?

When you hold something, are you doing work?

If you set the object on a table, does the table exert a force on the object? Does the table do any work?

Yes.

No.

Yes.

No.

When you hold something, then, you are not doing work either.

slide4
Work

Work is only done by a force on an object if the force causes the object to move in the direction of the force.

slide5
Work

When a force is

applied at an angle,

use the component

of the force in the

direction of motion.

W =F cosq(Dx)