Do Now Quiz: Intro to Motion

A student is sitting on a moving bus. From their perspective, the trees outside appear to be moving. This observation best illustrates which concept?

• Constant speed
• Instantaneous speed
• Scalar quantity
• Frame of reference

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

• Time
• Acceleration
• Velocity
• Displacement

A vector arrow representing a car's velocity points to the east and has a length of 5 cm. If a longer arrow (10 cm) pointing west represents a second car's velocity, what can be concluded about the second car's motion compared to the first?

• It is moving in the opposite direction with half the magnitude.
• It is moving in the same direction with the same magnitude.
• It is moving in the opposite direction with twice the magnitude.
• It is moving in the same direction with twice the magnitude.

A person walks 5 meters east, then 3 meters north. What is the total distance traveled by the person?

• 8 meters northeast
• 4 meters northeast
• 8 meters
• 2 meters

A person walks 5 meters east, then 3 meters north. What is the magnitude of the displacement of the person from their starting point?

• 8 meters northeast
• Approximately 5.8 meters
• 8 meters
• 2 meters

Two cars travel the same straight road from city A to city B. Car 1 takes a direct route and Car 2 takes a slightly longer, winding route but arrives at the same time. Which statement is true about their motion?

• Both cars have the same average speed and the same average velocity.
• Both cars have the same displacement but different distances.
• Both cars have the same distance but different displacements.
• Both cars have the same distance and the same displacement.

Convert 35 kilometers to meters.

• 35,000 meters
• 350 meters
• 0.035 meters
• 3,500 meters

A bicycle travels 100 meters in 20 seconds. What is its average speed?

• 80 m/s
• 2000 m/s
• 5 m/s
• 0.2 m/s

A car travels 500 meters north in 25 seconds. What is its average velocity?

• 20 m/s north
• 12,500 m/s north
• 20 m/s
• 12,500 m/s

A runner completes one lap around a 400-meter track, returning to their starting position. What is the runner's displacement?

• 400 meters
• Cannot be determined without knowing the time taken.
• 0 meters
• 400 meters in the direction of running