Name: ________________________________ Period: ________ Date: _______________________
Work Problems
Show all 4 process steps!
Work = Force x Distance
Joule = Newton x meter
1.
Give an example where a force is exerted on an object without doing work on the object.
2.
What are two different units that represent work?
3.
Define Work:
4.
A woman lifts her 100N child up 1m and carries her for a distance of 50m to her bedroom. How
much work does the woman do?
5.
You did 10J of work lifting a 140N backpack. How high did you lift the backpack?
6.
In problem 5, how much did the backpack weigh in pounds? 4.448N = 1 lb
7.
A crane does 62,500J of work to lift a boulder a distance of 25m. How much did the boulder
weigh?
8.
You lift a 45 kg bag of mulch 1.2m and carry it a distance of 10m to the garden. How much
work was done?
9.
It took a 500N ballerina a force of 250J to lift herself upward through the air. She landed a total
of 2.5m to the left after completing her jump. How high did she jump?
10.
A people-moving conveyor belt moves a 600N person a distanced of 100m through the
airport. How much work was done?
11.
Oprah Winfrey weighs 600N. She lifts her 100N Coach carry-on bag from the floor to the overhead bin on an airplane, a height of 2.4m. However, before boarding, Oprah rested the bag on
the people-moving conveyor belt from question 11. In total, how much work was done on the
Coach bag?
Name: ________________________________ Period: ________ Date: _______________________