MOTION UNIT REVIEW - 7th Grade

The table represents the data from an experiment to determine the speed of a toy car on a straight track.

The car is moving at a constant speed in a forward direction. Which value belongs in the cell marked with an x?

• 300

• 350

• 400

• 450

Tags

NGSS.MS-PS3-1

The motion of a toy car is shown in the graph.

In which section of the graph is the car moving away from its starting point?

• W

• Z

• Y

• X

Tags

NGSS.MS-PS3-1

Two toy cars are traveling on a track.

Thirteen minutes after they start, how do the speeds of the cars compare?

• Both cars have stopped moving on the track.

• Car 1 is moving faster.

• Both cars are traveling at the same speed.

• Car 2 is moving faster.

Tags

NGSS.MS-PS3-1

A bowling ball sitting motionless on a table exerts a downward force on the table. The force exerted by the table must be

• continually changing with the ball.

• equal to the force of the ball.

• greater than the force of the ball.

• less than the force of the ball.

Tags

NGSS.MS-PS2-1

If a book sitting on a flat table starts to move horizontally, it is most likely moving because

• a balanced force is being applied.

• a frictional force is being exerted.

• a gravitational force is being exerted.

• an unbalanced force is being applied.

Tags

NGSS.MS-PS2-2

The best example of balanced forces is a

• car increasing speed.

• bus parked in a garage.

• ball kicked along a flat surface.

• roller coaster slowing down on an incline.

Isaac Newton discovered the three laws of motion. Which example best illustrates Newton’s third law of motion, which describes action and reaction forces?

• a vehicle rounds a curve and changes its acceleration

• a heavier ball falls at the same speed as a lighter ball

• a book slides forward on a seat when the car stops

• a rocket takes off from the ground

Tags

NGSS.MS-PS2-1

Which graph could represent a car moving at a constant speed in a forward direction?

• 
• 
• 
• 

Tags

NGSS.MS-PS3-1

The graph shows the motion of four cars. All four cars are moving east.

Which car has a constant velocity?

• 1

• 3

• 2

• 4

Tags

NGSS.MS-PS3-1

In a game of tug-of-war, the people on each team pull with the amount of force shown.

In which direction will the center of the rope go?

• to the west because the net force is greater in this direction

• to the east because the net force is greater in this direction

• to the west because the net force is less in this direction

• to the east because the net force is less in this direction

Tags

NGSS.MS-PS2-2