Lesson 001

Which of the following is a scalar quantity?

• Displacement

• Distance

• Velocity

• Acceleration

Which of the following is a vector quantity?

• Distance

• Speed

• Displacement

• Time

What does displacement measure?

• The total path travelled

• The change in position and direction

• The speed of an object

• The time taken to travel

Which of the following best describes a frame of reference?

• The total distance travelled by an object

• The position and motion of the observer

• The speed of the object

• The direction of displacement

If a person walks 3 km east and then 4 km west, what is their displacement?

• 7 km east

• 1 km west

• 1 km east

• 7 km west

Which of the following is NOT needed to describe a vector?

• Magnitude

• Direction

• Unit

• Colour

If two observers are moving at different speeds, what will likely differ between their observations?

• The mass of the object

• The frame of reference

• The colour of the object

• The time of day

Which of the following is true about distance?

• It can be negative

• It is always measured in a straight line

• It is a scalar quantity

• It always equals displacement

A car travels 10 km north and then 10 km south. What is the total distance travelled?

• 0 km

• 10 km

• 20 km

• 5 km

A car travels 10 km north and then 10 km south. What is the displacement?

• 0 km

• 10 km north

• 10 km south

• 20 km north