# Science

The flashcards below were created by user Jennyhstar130 on FreezingBlue Flashcards.

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.
 Author: Jennyhstar130 ID: 214630 Card Set: Science Updated: 2013-04-20 16:07:13 Tags: Science Folders: Description: Unit 5: Work, Power, and Energy Show Answers: