2 Scalars and Vectors

You are taking a Physics class and hear about a speed that is 35 miles per hour (mph). What is a magnitude and what is the magnitude of 35 mph?

• A numeric value, 35 is the 'amount' and is followed by units of measurement as miles per hour

• A direction, 35 mph identifies a direction, so it is a vector

A scalar is a magnitude _____.

• With direction.
• Without direction.

How do scalars and vectors differ?

• scalers have units

• scalers have direction

• vectors have units

• vectors have direction

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Distance is which of the following?

• Vector

• Scalar

Displacement is which of the following?

• Vector

• Scalar

Which statement describes a vector?

• It has magnitude but no direction
• It has direction but no magnitude
• It has both direction and magnitude
• It has constant magnitude but no
   direction

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Which of these is not a vector quantity? 

• displacement 
• time
• velocity 
• acceleration

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

• Scalar

• Vector

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

• 5 miles

• 1 mile

• 2 miles south

• 1 mile north

Sara walks from Point A to Point B. Which is true?

• Distance and displacement are EQUAL
• Distance is less than displacement