WHILE THIS PLAYER DRIBBLES HIS BASKETBALL, THE BALL EXPERIENCES A COMPLEX ENERGY TRANSFER AS IT HITS THE FLOOR AND BOUNCES BACK UP

• Work is the transfer of energy that occurs when a force makes an object move.

• Two conditions have to be satisfied for work to be done on an object. One is that the object has to move.

Work=Force X Distance

Units- Newtons, Meters, and Joules

• Everyday example is picking up a book.

Sample Problem:

You move a 75kg refrigerator 35m. This requires a force of 90N. How much work, in joules, was done while moving the refrigerator?

F=90N W=(90N)(35m)=3150J
d=35m
W=?

www.en.wikipeia.org/wiki/mechanical_work

WestlakeHS, science, IPC, Web2.0, work & machines, work

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