Quick picks on vectors

Exercise and reference answers

Questions

1. Question

   A quantity with magnitude alone is a:

   Choices

   1. Scalar
   2. Vector
   3. Matrix

   Correct choice

   Scalar

2. Question

   The cosines of the direction angles are the:

   Choices

   1. Direction ratios
   2. Direction cosines
   3. Scalar components

   Correct choice

   Direction cosines

3. Question

   A vector of magnitude one unit is a:

   Choices

   1. Zero vector
   2. Free vector
   3. Unit vector

   Correct choice

   Unit vector

4. Question

   AC = AB + BC is the:

   Choices

   1. Triangle law
   2. Section formula
   3. Dot product

   Correct choice

   Triangle law

5. Question

   The dot product of two vectors returns a:

   Choices

   1. Vector
   2. Scalar
   3. Ratio

   Correct choice

   Scalar

Instructions

Tap the correct answer before the round moves on.

Explanation