Science

Card Set Information

Author:
Jennyhstar130
ID:
214630
Filename:
Science
Updated:
2013-04-20 12:07:13
Tags:
Science
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Description:
Unit 5: Work, Power, and Energy
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  1. When is work done?
    Work is done when a force causes a change in motion of an object.
  2. What is work?
    is a force that is applied to an object mutiplied by the distance of movement of the object
  3. In order for work to be done, the force must be applied in the _________________________ of the object
    direction of the motion
  4. If we apple a force on an object that does not move.  What is the work being done
    no work
  5. Is sitting and looking at a computer screen work
    no
  6. Tapping on the keyboard and makking the keys move is this work. And if yes why
    yes, because your fingers are moving and applying a force in the direction of motion (down)
  7. What units are work and energy expressed in
    joules
  8. What is power?
    power is the quantity that measures that the rate at which work is done. How fast work is being done.

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