Vectors and Scalars + Vector Addition

What is a vector quantity?

• A quantity that has only magnitude

• A quantity that has both magnitude and direction

• A quantity that has only direction

• A quantity that has neither magnitude nor direction

What is a scalar quantity?

• A quantity that has only magnitude

• A quantity that has both magnitude and direction

• A quantity that has only direction

• A quantity that has neither magnitude nor direction

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

• Temperature

• Speed

• Force

• Mass

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

• Velocity

• Acceleration

• Displacement

• Distance

When two vectors are added in the same direction, how is the resultant vector calculated?

• By subtracting their magnitudes

• By adding their magnitudes

• By multiplying their magnitudes

• By dividing their magnitudes

When two vectors are added in opposite directions, how is the resultant vector calculated?

• By subtracting their magnitudes

• By adding their magnitudes

• By multiplying their magnitudes

• By dividing their magnitudes

What is the resultant of two vectors of equal magnitude added in opposite directions?

• Zero

• Double the magnitude of one vector

• Half the magnitude of one vector

• The same as the magnitude of one vector

How is the resultant vector calculated when two vectors are perpendicular to each other?

• By adding their magnitudes

• By subtracting their magnitudes

• By using the Pythagorean theorem

• By multiplying their magnitudes

Which of the following statements is true about scalars and vectors?

• Scalars have direction, vectors do not

• Vectors have magnitude, scalars do not

• Scalars have magnitude, vectors have both magnitude and direction

• Vectors have direction, scalars have both magnitude and direction

What is the result of adding two vectors of magnitudes 3 units and 4 units in the same direction?

• 1 unit

• 5 units

• 7 units

• 12 units