Phy U2Q1

What is magnitude?

• A quantity that describes the direction

• A quantity of size

• A unit of measurement

• A quantity of magnification

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2.1

A 150 kg metal ball is pulled up by a rope. In this case is the motion of the ball a Vector or Scalar?

• Scalar
• Vector

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2.1

Wind blowing at 20 mph. Vector or scalar?

• Scalar
• Vector

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2.1

A deer running 15 m/s due west. Vector or scalar?

• Scalar
• Vector

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2.1

 Ray runs 30 feet north, 30 feet west, 30 feet south, and 30 feet east What's the distance of Ray's run?

• 120 feet

• 30 feet
• 60 feet
• 0 feet

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2.2

Scott travels north 5 km and then goes west 3 km before coming straight back south 5 km. If Scott travels an additional 2 km east, what's his displacement?

• 1 km west

• 15 km

• 5 km north

• 7 km south

• 2 km east

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2.2

 Jermaine runs exactly 2 laps around a 400 meter track. What is their displacement?

• 800 m

• 400 m

• 0 m

• 200 m

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2.2

An object starts at the origin and travels 24 km east, then 16 km south, and then 12 km east to reach its final position. At the object's final position, what is the magnitude of its displacement?

• 20 km

• 39 km

• 52 km

• 64 km

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2.2

This graph shows the positions of two students walking in the hallway. Which statement best describes their motion?

• At 3 s, both students have the same speed

• At 3 m, both students have the same speed

• The speed of Student 1 is greater than the speed of Student 2

• The speed of Student 2 is greater than the speed of Student 1

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2.3

During what period of time was Marie stopped?

• 0-5 minutes

• 5-10 minutes

• 10-25 minutes

• 25-30 minutes

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2.3