Card Set Information
Unit 5: Work, Power, and Energy
When is work done?
Work is done when a force causes a change in motion of an object.
What is work?
is a force that is applied to an object mutiplied by the distance of movement of the object
In order for work to be done, the force must be applied in the _________________________ of the object
direction of the motion
If we apple a force on an object that does not move. What is the work being done
Is sitting and looking at a computer screen work
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)
What units are work and energy expressed in
What is power?
power is the quantity that measures that the rate at which work is done. How fast work is being done.