q2 review

If a person pushes against a ball and the ball moves, which is true?

• A. The person is applying force to the ball.

• B. The person is changing the mass of the ball.

• C. The force of gravity is less than the mass of the ball.

• D. The force of friction is greater than the force of gravity.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A ball is rolled across a flat surface covered by carpet. Then, with same equal force, the ball is rolled on a flat, smooth surface. Which best explains why the ball rolls slower on the surface covered by carpet than on the smooth surface?

• A. There is less gravity between the ball and the carpet.

• B. There is less friction between the ball and the carpet.

• C. There is more gravity between the ball and the carpet.

• D. There is more friction between the ball and the carpet.

Which best explains how mass affects the motion of an object?

• As the mass of an object increases, the force needed to move it increases.

• As the mass of an object increases, the force needed to move it decreases.

• As the mass of an object decreases, the force needed to move it increases.

• As the mass of an object changes, the force needed to move it remains the same.

Tags

NGSS.MS-PS2-2

Tom, Bob, and Bill are in a bicycle race. Tom travels 1.5 miles in 12 minutes, Bob travels 2 miles in 22.3 minutes, and Bill travels 2.9 miles in 10 minutes. Who had the greatest speed?

• tom

• bob

• bill

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?

• A. Car W will travel farther than Car X in the same amount of time.

• B. Car X will travel farther than Car W in the same amount of time.

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

A class is traveling two hours by bus on a field trip. The first hour the distance traveled is less than the distance during the second hour. What can most likely be concluded about the trip?

• A. The bus traveled at a constant speed each hour.

• B. The bus traveled faster during the first hour than the second hour.

• C. The bus traveled slower during the first hour than the second hour.

A student went on a walk, and kept track of their time and distance. The data is displayed in the graph. Which best describes the student’s walk?

• A. The student went up a hill, and then down a hill.

• B. The student walked very quickly at the beginning of the walk, but then slowed down at the end.

• C. The student walked slowly at the beginning of the walk, and faster at the end.

• D. The student walked at a steady pace, and then returned to the starting point.

This graph shows the motion of a bus for 5 minutes. How far did the bus travel in 4 minutes

• 2500 m

• 2000 m

• 500 m

• 1000 m

Tags

NGSS.MS-PS3-1

A toy robot moved from a starting point and traveled in a straight line at different speeds. Then the robot turned around and traveled in a straight line at different speeds as it returned to its starting point. Which sentence describes the motion of the robot between seconds 3 and 4?

• A. The robot was moving away from the starting point.

• B. The robot was moving toward the starting point.

• C. The robot was stopped in one place away from the starting point.

Tags

NGSS.MS-PS3-1

A student uses a rubber band to launch the four objects shown in the table. If the student pulls the rubber band back the same amount each time, which object will most likely move the fastest when launched?

• paper clip

• piece of paper

• eraser

• rubber ball

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

NGSS.MS-PS3-1