DOKs 2 & 3: Calculating Average Speed Quiz

A car travels 120 kilometers in 3 hours. What is its average speed?

• 30 km/h

• 40 km/h

• 60 km/h

• 90 km/h

If a student walks 2 kilometers in 30 minutes, what is the student's average speed in kilometers per hour?

• 2 km/h

• 3 km/h

• 4 km/h

• 5 km/h

Tags

NGSS.MS-PS3-1

A cyclist covers a distance of 45 kilometers in 1.5 hours. What is the cyclist's average speed?

• 20 km/h

• 25 km/h

• 30 km/h

• 35 km/h

A train travels 150 miles in 2.5 hours. What is the average speed of the train in miles per hour?

• 50 mph

• 55 mph

• 60 mph

• 65 mph

A runner completes a 10 km race in 50 minutes. What is the runner's average speed in km/h?

• 10 km/h

• 12 km/h

• 15 km/h

• 20 km/h

A student records the following data during an experiment: Distance traveled = 200 meters, Time taken = 25 seconds. Calculate the average speed and explain how you arrived at your answer.

• 8 m/s; by dividing distance by time

• 10 m/s; by multiplying distance and time

• 7 m/s; by subtracting time from distance

• 12 m/s; by adding distance and time

During a science investigation, a toy car travels 15 meters in 3 seconds, then 25 meters in 5 seconds. What is the car's average speed for the entire trip? Show your reasoning.

• 4 m/s

• 5 m/s

• 6 m/s

• 8 m/s

Tags

NGSS.MS-PS3-1

A hiker walks 6 km in 1.5 hours, rests for 30 minutes (not moving), then walks another 4 km in 1 hour. What is the hiker's average speed for the entire trip? (Include the rest time in your calculation.)

• 2 km/h

• 3 km/h

• 4 km/h

• 5 km/h

A student is given a graph showing distance versus time for a moving object. The object travels 100 meters in 20 seconds, then remains at rest for 10 seconds, and finally travels another 50 meters in 10 seconds. What is the average speed for the entire motion? Explain your reasoning.

• 5 m/s

• 4 m/s

• 3 m/s

• 2 m/s

Tags

NGSS.MS-PS3-1

A bus travels 60 km in 1 hour, then 90 km in 2 hours. What is the average speed of the bus for the entire journey? Show your calculation process.

• 45 km/h

• 50 km/h

• 60 km/h

• 75 km/h