Vectors Scalars Distance Displacement

You drive 2 km to school and then 2 km back home. What is your displacement?

• 0 km. You are back where you started.

• 4 km. 2+2 = 4.

• 5 km. 2+2 = 5.

Ricky-Bobby races in the Indy 500, an oval shaped track that is 2.5 miles per lap. The race is 200 laps long, and he ends up exactly where he started. His displacement over the race is 0 miles, because:

• Displacement is a vector quantity.

• Displacement is a scalar quantity.

Juan rides his bike from point A to point B, then on to point C. What is his displacement?

• 3m

• 4m

• 5m

• 7m

A skier moves from point A to point B, then moves backwards to point C, before travelling forwards again to point D. What is her displacement? (ignore the time listed)

• 40m

• 100m

• 140m

• 420m

Distance and direction of an object's change in position from a starting point

• displacement

• distance

• motion

• reference point

The total length traveled is known as

• distance.

• displacement.

• reference point.

• wrong answer.

A ______________ quantity is fully described by a number and unit alone.

• scalar

• vector

Which of the following is a scalar quantity?

• 2 miles up I-35

• 10 feet closer to your car

• 2 meters

• 1 centimeter to the right

Juan rides his bike from point A to point B, then on to point C. What is the distance he has traveled?

• 3m

• 4m

• 5m

• 7m

A skier moves from point A to point B, then moves backwards to point C, before travelling forwards again to point D. What is the distance that she traveled? (ignore the time listed)

• 40m

• 100m

• 140m

• 420m