Topic 2 Test

Look at the distance-time graph. What is the average speed of the object during the first 5 seconds?

• 0 m/s

• 1 m/s

• 5 m/s

• 10 m/s

Tags

NGSS.MS-PS3-1

Velocity is a measure of both ______. Speed is a measure of only ______ something moves. Which terms best complete the sentences?

(a)   ​ (b)   ​

• force and acceleration
• force and direction
• speed and direction
• speed and force
• how fast
• the direction
• the distance

Six friends are playing a game of tug-of-war. They are split evenly into two teams so the same number of people can hold on to each side. A flag is tied to the center of a rope. Each team pulls on one side of the rope and tries to move the flag to their side. As the game of tug-of-war begins, the teams begin to tug, and the flag starts moving toward the team on the right. Which statement best describes what is occurring in relation to Newton’s First Law?

• The team on the right is applying less force to make the forces balanced.

• The team on the right is applying less force to make the forces unbalanced.

• The team on the right is applying more force to make the forces unbalanced.

• The team on the right is applying more force to make the forces balanced.

If both teams pull with equal force, the forces are _______ and the flag will _______. Which terms best complete the sentence?

(a)   ​ (b)  

• balanced
• unbalanced
• move
• not move

Tags

NGSS.3-PS2-1

After 7 minutes of playing, a member from the right side gets tired and stops pulling on the rope. Predict what is likely to happen at this point in the game.

• The right team will win because the left team is applying more force, making the forces balanced.

• The left team will win, because they are applying more force, making the forces unbalanced.

• The right team will win because the left team is applying more force, making the forces unbalanced.

• The left team will win because they are applying more force, making the forces balanced.

Tags

NGSS.MS-PS2-2

What is the speed of a car that travels 30 km in 25 minutes?

• 0.05 km/min

• 0.5 km/min

• 1.2 km/min

• 2.1 km/min

Use the diagram to answer the next three questions. According to the graph, what can you conclude about both Runner 1 and Runner 2?

• The runners began the race at different times.

• The runners took the same time to finish the race.

• The runners ran the race on different tracks.

• The runners returned to the starting point at the end of the race.

Which event would best explain Runners 2’s motion from 1 second to 5 seconds?

• Runner 2 had to go back to the starting line.

• Runner 2 slowed to avoid hitting the other runner.

• Runner 2 sped up to move around an obstacle on the track.

• Runner 2 stopped to shake out a muscle cramp.

Based on the evidence in the graph, which statements are accurate? Select all correct answers.

• Runner 1 won the race.

• Runner 2 ran at different speeds during the race.

• Runner 1 ran at the same speed during the entire race.

• At time 4 s, Runner 1 had run 5.0 m.

• Runner 2 reached a higher speed than Runner 1.

Tags

NGSS.MS-PS3-1

A turtle travels 1 km/hour for 10 hours. The turtle then stops to rest for 2 hours. After that, it continues to travel at 1 km/hour for 4 hours. The graph shows the motion of the turtle. The graph has four points that mark a change in the speed of the turtle. Four points on the graph are listed in no particular order. Which is the correct order of the points from left to right on the graph?

• 10 km, 10 hr

• 0 km, 0 hr

• 10 km, 12 hr

• 14 km, 16 hr

Tags

NGSS.MS-PS3-1