Numbers

4-13 Concept of Work

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Work is defined as how much force on an object times how much distance the object moves.  In physics, work is only being done when an object is moved a distance by a force.  The farther an object is moved, the more work that is being done.  The formula for work is:

Let's say we move a 20 pound object 40 feet.  The work done would be 20 X 40 = 800.  Work is defined as foot-pounds.  The work done would be 800 foot-pounds of work.  Scientist also use "erg" and "joule."  A joule is about .738 foot-pounds.

Complete the questions below.

 

Work is defined as how much on an object times how much an object moves.

Scientist use a , about .738 foot-pounds to measure work.

The an object is moved, the more work that is done.

If an object, that weights 30 pounds, is moved 30 feet, then  foot-pounds of work will be done.

If an object, that weighs 100 pounds, is move 1 foot, then foot-pounds of work will be done.

 

 

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WORK SPACE
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Work Equals Force Times Distance