What is the SI unit of work?
Calculus III: The Dot Product (Level 11 of 12)

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9th - 10th Grade
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Watt
Joule
Pascal
Newton
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the US customary system, what is the unit of work?
Pound-force
Joule
Newton-meter
Foot-pound
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When a force is applied at an angle to the displacement, which component of the force is used to calculate work?
Vertical component
Parallel component
Total force
Perpendicular component
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which form of the dot product is more commonly used in textbooks to calculate work?
Scalar form
Geometric form
Projection form
Component form
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the example where an object is pulled 10 feet with a force of 85 pounds at 60 degrees, what is the work done?
450 foot-pound
400 foot-pound
500 foot-pound
425 foot-pound
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the angle used in the example where a force acts North 50 degrees West?
40 degrees
60 degrees
30 degrees
50 degrees
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the example of a box pushed up a ramp, what is the work done if the force is 25 pounds and the ramp is 10 feet long?
200 foot-pound
235 foot-pound
250 foot-pound
220 foot-pound
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