Work is not what you think it is.

1
Work is not what you think it is.
2
Everybody Works

• Everyday your parents go off to work.
• Your vision of work is anything from out on
  the farm to up in the skyscrapers.
• Work is not what you think it is.

3
What is work?

• Work is the net force exerted on an object
  multiplied by the distance over which the force
  is exerted.

4
For Example

• Say a little boy threw his toy rocket with a
  force of 2N and a distance of 2M. The little boy
  did 4 joules of work.

5
How do we find work?

• The formula for work is force multiplied by
  distance. ( WFxD )
• Work is measured in joules.
• Work is in everything you do. You could do
  anything from brush your hair to run a mile and
  you would still be doing work.

6
What is a joule and where does it come from?

• A joule is the unit of measure for work and
  energy.
• It was named after James Prescott Joule, who
  was a nineteenth-century British physicist.

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Definition Of A Joule

• A joule is a force of one newton acting over a
  distance of one meter.
• The force and distance must be going in the
  same direction.

8
Whats the difference between work and energy?

• Work and energy are very similar, but.
• In order to work, an object must have energy,
  but
• In order to have energy, an object must have
  done work.

9
We love examples

• Say the quarterback threw the ball 30m with a
  force of 20N. How much work did the quarterback
  do.
• Answer 600J

10
My Favorite Type Of Work

• Pretend your laying around on a cool evening,
  but your too lazy to throw your soda can away, so
  you shoot for the garbage can. You throw the can
  3m with a force of 2n.You did 6j of work.

11
Applying work to daily life.

• Your playing a game of volleyball and you jump
  up to spike the ball. You spike the ball 5m with
  a force of 20N. How much work do you think you
  did.
• 100j

12
Watching The Prep Bowl

• Your in Aloha Stadium watching the Prep Bowl.
  A lineman tackles the quarterback and pushes him
  6m with a force of 50N. The linebacker did 300j
  of work.

13
Bibliography

• Now that we have covered the scientific
  version of work, its time to relax and enjoy the
  credits.

14
Bibliography

• Basic Physics A Self Teaching Guide
• Written By Karl F. Kuhn
• Published By John Wiley Sons,Inc.Publishers

15
Bibliography

• The Handy Physics Answer Book
• Written By P. Erik Gunderson
• Published By Visible Ink Press

16
Bibliography

• www.megaspider.com
• www.sportsHIgh.com
• www.google.com
• www.geo.mtu.edu/index5.html