Distance Time

A helicopter traveled 200 miles in one hour. During the next hour, it traveled another 200 miles. Which best describes the average speed of the helicopter during the second hour?

• slower than the first hour
• faster than the first hour
• about the same as the first hour
• exactly the same as the first hour

A news truck traveled 60 miles in one hour on Thursday and 240 miles in four hours on Friday. Which best describes the average speed of the truck? (speed = distance ÷ time)

• The truck drove more slowly on Friday.
• The truck drove more slowly on Thursday.
• The truck drove the same speed on both days.

Michelle drove 300 miles in 6 hours. What was Michelle’s speed?
(speed = distance ÷ time)

• 30 miles per hour
• 50 miles per hour
• 60 miles per hour
• 80 miles per hour

The Great Smoky Mountain Railroad travels 26 km between Bryson City and Dillsboro. The trip takes 50 minutes. How fast is the train moving?

• 0.52 km/min
• 1.9 km/min
• 24 km/min
• 76 km/min

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NGSS.MS-PS3-1

Which information is needed to determine the speed of an object?

• the weight of the object and the the pull of gravity on the object and the amount of time it travelsdistance it travels
• the pull of gravity on the object and the amount of time it travels
• the inertia of the object and the amount of force that is pushing it
• the distance the object travels and the time it takes to travel that distance

Which tools will be most helpful to a scientist measuring motion?

• a measuring tape, a stopwatch, and a thermometer
• a compass, a stopwatch, and a measuring tape
• a stopwatch, a scale, and a thermometer
• a scale, a compass, and a stopwatch

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NGSS.MS-PS3-1

Car W is traveling at 70 miles per hour. Car X is traveling 65 miles per hour. Which statement is true about the movement of the two cars?

• Car W will travel farther than Car X in the same amount of time.
• Car X will travel farther than Car W in the same amount of time.
• Both Car X and Car W will travel the same distance in the same amount of time.
  

How long would it take a car traveling 60 miles per hour to get from Charlotte, NC to Atlanta, GA if the two cities are 240 miles apart? (speed = distance ÷ time)

• 2 hours
• 4 hours
• 6 hours

Suzy’s trip to the store takes 30 minutes. She stays inside the store for 10 minutes before returning home. She follows the exact same route home, making her total trip time one hour and twenty minutes. Which statement best describes Suzy’s motion?

• She slows down on the return trip.
• She speeds up on the return trip.
• Her speed remains constant.
• Her speed gains momentum.

About how long would it take for an airplane traveling at 500 miles per hour to travel nonstop from San Francisco, CA to Myrtle Beach, SC if the distance between these two cities is 2,800 miles? (speed = distance ÷ time)

• between 5 and 6 hours
• between 3 and 4 hours
• between 1 and 2 hours