Scalars/Vectors

The students are arguing over the differences between speed and velocity. One student says, “Speed is a vector because it describes how fast an object traveling. Velocity is a scalar because it tells how fast and what direction an object is traveling.” Which of the following statements is correct?

• The students' understanding of all four terms (speed, velocity, scalar, and vector) is correct.

• The students' understanding of all four terms (speed, velocity, scalar, and vector) is incorrect.

• The students' understanding of speed and velocity is incorrect but their

  understanding of scalar and vector is correct.

• The students’ understanding of speed and velocity is correct but their understanding of scalar and vector is incorrect.

which of the following is a vector?

• velocity

• discance

• position

• speed

How do scalars and vectors differ?

• scalers have units

• scalers have direction

• vectors have units

• vectors have direction

Tags

CCSS.HSN.VM.A.1

Solve the sum:

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A deer running 15 meters per second due west.Vector or scalar?

• Scalar
• Vector

Distance and direction of an object's change in position from a starting point

• displacement
• distance
• motion
• reference point

 Amy runs 2 miles south, then turns around and runs 3 miles north. What is displacement?

• 5 miles
• 1 mile 
• 2 miles south
• 1 mile north 

If a boomerang is thrown 20 m in a straight line and returns exactly to the spot it was thrown what is its displacement?

• 20m
• 40m
• 0m
• -20m