Question 49 / 54:  What is the difference between a vector and a scalar physical quantity?
A  The units for vector quantities are different from the units for scalar quantities.
B  The magnitude of a scalar can be negative, whereas the magnitude of a vector quantity is always
positive.
C  Vector physical quantities have a direction in space, whereas scalars do not have a direction
in space.
D  Both B and C
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Introduction to Mechanics MCQ

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Attribution:  Introduction to Mechanics. The Saylor Academy 2014, http://www.saylor.org/courses/phys101/
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