Phy U2Q2

A scalar quantity has . . .

• magnitude only

• direction only

• both magnitude and direction

• neither

Tags

2.1

Which of the following measurements is a vector measurement?

• Time

• Distance

• Speed

• Velocity

Tags

2.1

A 2500 kg car was sitting in the last parking space on the second floor of a parking garage. In this case, is the car's mass a scalar or a vector?

• Vector

• Scalar

Tags

2.1

Scalar or Vector? The object displaced toward the Earth for 22 meters.

• Scalar

• Vector

Tags

2.1

A car travels 90 meters due north in 15 seconds. Then the car turns around and travels 40 meters due south. What's the car's displacement?

• 40 meters, South

• 50 meters, South

• 50 meters, North

• 40 meters, North

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2.2

Jerry walked from home to school, then from the school to the park. What is his total distance?

• 2 km

• 5 km

• 8 km

• 10 km

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2.2

Liza is swimming laps from one end of a 50 meter pool to the other. Going from one end to the other is considered one lap. If she swims four complete laps, which statement is TRUE?

• Her distance and displacement are both zero.
• Her distance is zero, but her displacement is 200 meters.
• Her distance is 200 meters, but her displacement is zero.
• Her distance and displacement are both 200 meters.

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2.2

A cat walks 3.0 meters due east toward a dot made by a laser pointer. Upon seeing a mouse in the kitchen, the cat then jumps 5.0 meters due south of the laser dot. What's the magnitude of the displacement of the cat?

• 3.0m

• 5.0m

• 8.0m

• 5.8m

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2.2

When was Marie driving the fastest?

• C to D

• D to E

• E to F

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2.3

What could account for Marie’s motion at 27 minutes?

• She was late so she broke the speed limit

• She forgot something at home and ran back to get it

• She was stopped at a red light

• She was driving across the top of a hill

Tags

2.3