Understanding Speed and Velocity

A car travels 150 kilometers in 3 hours. What is the average speed of the car in kilometers per hour?

• 45 km/h

• 50 km/h

• 55 km/h

• 60 km/h

Which of the following statements correctly distinguishes between speed and velocity?

• Speed includes direction, while velocity does not.

• Velocity includes direction, while speed does not.

• Both speed and velocity include direction.

• Neither speed nor velocity includes direction.

A runner completes a 400-meter lap in 50 seconds. What is the runner's average speed in meters per second?

• 6 m/s

• 7 m/s

• 8 m/s

• 9 m/s

If a car travels 100 meters north and then 100 meters south, what is the car's displacement?

• 0 meters

• 100 meters

• 200 meters

• 50 meters

A cyclist travels 30 kilometers in 2 hours. What is the cyclist's average speed?

• 10 km/h

• 15 km/h

• 20 km/h

• 25 km/h

Which graph best represents an object moving at a constant speed?

• A straight horizontal line

• A straight line with a positive slope

• A curved line

• A straight line with a negative slope

Tags

NGSS.MS-PS3-1

A car travels 60 km east and then 80 km west. What is the car's total displacement?

• 20 km west

• 20 km east

• 140 km

• 0 km

A train travels 120 kilometers in 1.5 hours. What is the train's average speed in kilometers per hour?

• 70 km/h

• 80 km/h

• 90 km/h

• 100 km/h

What does the slope of a distance-time graph represent?

• Acceleration

• Velocity

• Displacement

• Speed

A car travels 200 meters in 20 seconds. What is the car's average speed in meters per second?

• 5 m/s

• 10 m/s

• 15 m/s

• 20 m/s