Physics 11 Diagnostic Test: Vector

What do you know about vector quantities?

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What do you know about scalar quantities?

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Which one is vector, and which one is scalar? Explain your reason.

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A man walks 46.5 m east, then another 20 m east.

Calculate his displacement relative to where he started. 

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A man walks 46.5 m east, then another 20 m west.  Calculate his displacement relative to where he started.

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A man travels 120 km east, then 160 km north.  Calculate his resultant displacement.

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Which of the following are vector quantities?
i.The velocity of a frisbee
ii.The width of a crater made by an asteroid
iii.The speed of a car on the highway
iv.The displacement of a billiard ball after it is struck by the cue ball

• i only

• i and ii

• ii and iii

• i and iv

Which of the following groups are vector quantities?

• Velocity, Displacement, Energy

• Momentum, Acceleration, Work

• Weight, Momentum, Displacement

• Power, Force, Acceleration

Steve walks from Point P to Point Q. The curved part of his path is a semicircle. What is the magnitude of his displacement from point P to point Q?

• 5

• 15

• 10

• 20

A Physics teacher, Susan, drove to her high school which is located 15km East from her house. After school, she drove to her children's elementary school which is 10 km South from her high school. Then, she drove to a grocery store, located 15km West from the elementary school. Finally, she drove back to home with her kids and several grocery bags. Choose a true statement from the following:

• The total distance she traveled from her house to elementary school is 18 km.

• The magnitude of the displacement vector from the high school to the grocery store is 25 km

• The magnitude of the displacement vector for the whole trip is 50 km.

• The magnitude of the displacement vector from her house to the grocery store is 10 km