Scalars and Vectors Review

What two properties completely specify a scalar quantity?

• Magnitude and direction

• Magnitude and unit

• Direction and unit

• Magnitude and position

Which of the following is an example of a vector quantity?

• Mass

• Speed

• Force

• Time

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What is the magnitude of a unit vector?

• Zero

• One

• Greater than one

• Less than one

What characterizes a null vector?

• It has a magnitude of one and a specific direction.

• It has zero magnitude and its initial and terminal points are the same.

• It can be displaced parallel to itself.

• It represents the position of a point relative to the origin.