1D Motion

What is the difference between distance and displacement?

• Distance is from point A to point B.
• Displacement is the shortest distance along 2 points and direction matters.
• Displacement is distance and direction matters.
• There is no difference.

How do we measure velocity?

• stopwatch
• distance/time
• time/distance
• displacement/time

A car moved 80 km to the South. What is its displacement?

• 20 km South
• 50 km East
• 80 km South
• 160 km North

A car moved 60 km East and 90 km West. What is the distance?

• 30 km
• 60 km
• 90 km
• 150 km

A car moved 60 km East and 90 km West. What is the displacement?

• 30 km West
• 60 km West
• 30 km East
• 150 km

What are the units speed is measured in?

• m/s²
• m
• hr
• m/s

Average velocity can be calculated by dividing displacement over what?

• time
• distance
• mass
• density

What is the average velocity of a car that moved 60km in 3 hours?

• 10 km/h
• 20 km/h
• 30 km/h
• 60 km/h

What is the average velocity of a car that moved 40 km East and 80 km West in 2 hours?

• 5 km/h
• 10 km/h
• 15 km/h
• 20 km/h

If car A is at 40 km/h and car B is at 10 km/h in the opposite direction, what is the velocity of the car A relative to the car B?

• 10 km/h
• 20 km/h
• 40 km/h
• 50 km/h