Forces & Motion Review

The graph below tracks the motion of an object. Which best describes the motion of the object between seconds 7 and 8?

• A. The object remained at rest.

• B. The object’s motion increased.

• C. The object’s motion decreased.

• D. The object moved at a constant speed.

Tags

NGSS.MS-PS3-1

A garbage truck and motorcycle sat at a red light; both drivers will apply the same force when the light turns green. Which of the following best describes the situation?

• The motorcycle will go slower because it has less mass than the

  garbage truck.

• The motorcycle will go faster because it has more mass than the

  garbage truck.

• The garbage truck will go slower because it has more mass than the

  motorcycle.

• The garbage truck will go faster because it has less mass than the

  motorcycle.

Tags

NGSS.MS-PS2-2

What can be determined about the speed at which the car is traveling?

• A. The car is accelerating.

• B. The car is slowing down.

• C. The car is traveling at various speeds.

• D. The car is traveling at a constant speed.

Tags

NGSS.MS-PS3-1

Sara is pushing a box containing 10 books across the floor at a constant speed. If 5 books are taken out of the box, what will be needed to keep the box moving at the same constant speed?

• a decrease in the force pushing the box

• an increase in the force pushing the box

• a decrease in the force of gravity on the box

• an increase in the force of gravity on the box

Tags

NGSS.MS-PS2-2

1. Below is a distance time graph that shows the motion of a student on a walk. Which statement best describes the students' motion?

• A. The student walks slowly at first, then increases their speed, stops, and very quickly returns to the starting point.

• B. The student walks up a hill at the beginning, and then has a flat surface, and then walks down a hill at the end.

• C. The student is going faster and faster in the last two minutes.

• D. The student starts out moving very fast, slows down in the middle of the walk, and then speeds up again at the end.

Tags

NGSS.MS-PS3-1

Harry rolls a basketball across a concrete court. Friction between the ball and the ground

slows it down. Which of the following would help reduce friction and make the ball roll farther?

• Pushing the ball harder.

• Using a smoother ball.

• Rolling it on a rougher surface.

• Rolling the ball with more spin.

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

• A. 1 second

• B. 2 seconds

• C. 3 seconds

• D. 4 seconds

How will gravity affect the motion of a ball that is dropped from a height of 5 feet?

• Gravity will pull the ball upwards.

• Gravity will pull the ball toward the ground.

• Gravity will slow the speed of the ball.

• Gravity will make the ball travel at a constant speed.

Tags

NGSS.MS-PS2-2

Mandy and Josh raced one lap around the track. The graph below shows the results of their race. Which statement can be proven by the graph?

• A. Josh won the race.

• B. Mandy won the race.

• C. Mandy ran less distance than Josh.

• D. Josh ran the race in less time than Mandy.

Tags

NGSS.MS-PS3-1

Sammy was pulling a wagon at a constant speed. If books were added to the wagon, what would most likely have to happen for Sammy to continue pulling the wagon at the same speed?

• The force of gravity would need to increase.

• The mass of the wagon would need to increase.

• The amount of friction on the wagon would need to increase.

• The force pulling on the wagon would need to increase.

Tags

NGSS.MS-PS2-2