Vectors

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

• acceleration

• mass

• volume

• temperature

Displacement is a

• base quantity

• derived quantity

• scalar quantity

• vector quantity

Identify the following quantities as scalar or vector: the mass of an object, the number of leaves on a tree and wind velocity.

• vector, scalar, scalar

• vector, scalar, vector

• scalar, scalar, vector

• scalar, vector, vector

If two forces 20 N towards North and 12 N towards South are acting on an object. What will be the resultant force?

• 32 N North

• 20 N South

• 32 N South

• 8 N North

Find the displacement a hiker walks if he travels 9.0 km north, and then turns around and walks 3.0 km south?

• 0.5 km

• 3.0 km

• 6.0 km

• 12.0 km

Which of the following is the definition of vector?

• a quantity that has only magnitude

• a quantity that has both magnitude and direction

• a quantity that has only one direction

• a quantity that has magnitude but may or may not have direction

Which of the following answer contains two scalar quantities and one vector quantity?

• mass, displacement, time

• momentum, velocity, acceleration

• temperature, displacement, force

• time, length, mass

A student adds two displacement vectors with magnitudes of 3 m and 4 m respectively. Which one of the following could be a possible choice for the resultant?

• 1.3 m

• 3.3 m

• 5 m

• 6.8 m

How to add vectors graphically?

• put them in line

• put them tail to tail

• put them tip to tip

• put them tip to tail

Which of the following answer contains two vector quantities and one scalar quantity?

• mass, displacement, time

• momentum, velocity, acceleration

• temperature, displacement, force

• time, length, mass