Speed. Distance, Time, Position

A hot air balloon is floating in the atmosphere. If a burst of hot air were blown up into the balloon, which would most likely occur?

• The balloon would rise.

• The balloon would descend.

• The balloon would travel sideways.

• The balloon would remain in the same place.

Maria pulled an empty cart to the library. When she leaves the library, the cart is full of books. How does the force of friction on the cart change?

• The force of friction increases because there is more mass.

• The force of friction decreases because there is more air pressure.

• The force of friction increases because the force of gravity decreases.

• The force of friction stays the same because Maria is still pulling the cart with the same force.

This graph show the motion of an object. How long did it take the object to travel to a position of 30 meters?

• 1 second

• 2 seconds

• 3 seconds

• 4 seconds

Allison roller skated around her neighborhood. The graph below shows her position over time. Which statement BEST describes her motion?

• Allison traveled faster between hours 0–1 than between hours 3–4.

• Allison traveled faster between hours 3–4 than between hours 0–1.

• Allison traveled farther between hours 1–2 than between hours 2–3.

• Allison traveled farther between hours 0–1 than between hours 2–3.

Click on the picture to read the poblem and see the graph.

• The rabbit was always 10 meters ahead of the fox.

• The fox caught the rabbit 80 seconds after the chase started.

• The fox chased the rabbit but gave up after 60 meters and turned around.

• The dog laughed to see such fun.

Click on the graph to read the problem and solve using the graph.

• Josh won the race.

• Mandy won the race.

• Mandy ran less distance than Josh.

• Josh ran the race in less time than Mandy.

A train travels at a constant speed of 60 miles per hour. How many miles will the train travel in 4 hours? (distance = speed × time)

• 15 miles

• 56 miles

• 180 miles

• 240 miles

Rebekah and Sarah raced each other over a distance of 100 meters. Rebekah and Sarah reached the end of the 100 meters at the same time. Which best describes the motion of the girls?

• Rebekah ran faster than Sarah.

• Sarah ran faster than Rebekah.

• The girls ran in different directions.

• The girls ran at the exact same average speed.

Arturo ran a 3,000-meter race. His running time from start to finish was 10 minutes. What was Arturo’s average speed?

• 5 m/s

• 50 m/s

• 100 m/s

• 300 m/s

Which information is needed to determine how fast a truck is traveling?

• direction and mass

• distance and time

• size and speed

• time and weight