Force and Motion

The diagram represents two students pushing and pulling an object in the same direction. Which statement best describes the result of the forces?

• A. The object will not move because the forces are not the same.

• B. The object will move in the direction of the combined forces.

• C. The lesser force applied is not enough to move the object.

• D. The combined forces on the object cancels each other out.

Tags

NGSS.MS-PS2-2

What is the horse's average speed in kilometers per minute?

Tags

NGSS.MS-PS3-1

The picture shows a bicyclist increasing speed while riding down a hill during a bicycle race. Which statements accurately describe the potential and kinetic energy of this bicyclist?

• A. Kinetic energy increases. Potential energy decreases.

• B. Kinetic energy increases. Potential energy remains constant.

• C. Kinetic energy remains constant. Potential energy decreases.

• D. Kinetic energy remains constant. Potential energy increases.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

A ball is given a single push up an inclined plane.

Which of the following will NOT change as a result of the unbalanced force of gravity?

• A. Position

• B. Speed

• C. Mass

• D. Direction

Tags

NGSS.MS-PS2-2

PART A

This question has two parts. First, complete Part A. Then complete Part B.

The graph represents the movement of a car over the span of 8 seconds. What does the graph tell us about the movement of the car from 6 - 8 seconds?

• The car was speeding up.

• The car was slowing down.

• The car was not moving.

• The car was moving at constant speed.

Tags

NGSS.MS-PS3-1

PART B

This question has two parts. First, complete Part A. Then complete Part B.

Which of the following statements BEST supports your answer to Part A?

• A. A straight line on a speed vs time graph demonstrates a car at rest.

• B. A straight line on a speed vs time graph demonstrates a car at constant speed.

• C. A diagonal line on a speed vs time graph moving upward on the y-axis demonstrates a car slowing down.

• D. A diagonal line on a speed vs time graph moving downward on the y-axis demonstrates a car slowing down.

Tags

NGSS.MS-PS3-1

In the classroom demonstration shown below, a rubber ball is dropped from Position 1. The ball bounces as shown.

At which of these positions does the ball have both the greatest kinetic energy and the least potential energy?

• Position 1

• Position 2

• Position 3

• Position 4

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

NGSS.MS-PS3-2

Analyze the acceleration graph. Identify the locations on the graph where an increase in speed can be observed. Select TWO correct answers.

• Blue

• Red

• Green

• Yellow

Tags

NGSS.MS-PS3-1

During the first 2 hours of the trip, they traveled

___km.

Tags

NGSS.MS-PS3-1

A marble is given potential energy by being placed at Location W. When the marble is released, it rolls down the track. At which location does the marble have maximum kinetic energy?

• Location W

• Location X

• Location Y

• Location Z

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

NGSS.MS-PS3-2