distance & displacement

A person swims 40m North and 15m West. Calculate the total distance travelled

• 40m

• 15m

• 55m

• 55m North West

Identify Pythagoras' theorem:

• a² + b² = c²

• a² - b² = c²

• c² + b² = a²

• c² + a² = b²

Which of following about distance is true?

• it is a measure of magnitude

• it is a scalar quantity

• it can be measured with different units

• all answers are correct

Which of the following about displacement are true (more than 1 may be correct)?

• it is a measure of speed

• it is a scalar quantity

• it is a measurement of magnitude and direction

• it is a vector quantity

An athlete runs exactly 2 laps around a 400m track. Identify the displacement.

• 800m West

• 400m North

• 0m

• 200m South

Bob runs 400m to Jimmy's house, turns around, and runs 400m back home. Identify the total distance Bob travelled.

• 0m

• 400m

• 800m

• 1600m

Georgia is swimming laps from one end of a 50m pool to the other. Going from one end to the other is considered one lap. If she swims four complete laps, which statement is TRUE?

• Her distance and displacement are both zero.

• Her distance is zero, but her displacement is 200m.

• Her distance is 200m, but her displacement is zero.

• Her distance and displacement are both 200m.

A scalar quantity measures:

• magnitude

• direction

• magnitude and direction

A vector quantity measures:

• magnitude

• direction

• magnitude and direction

Jerry walked from home to school, then from the school to the park. What is his total displacement?

• 2 km East

• 5 km East

• 8 km West

• 10 km West