Force & Motion Review

The diagram shows the time it took for a race car to travel each 100-meter (m) segment along a 300-m track. Which graph correctly shows the distance and time traveled by the race car?

• Graph A

• Graph B

• Graph C

• Graph D

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NGSS.MS-PS3-1

A pitching machine is pointed upward. A ball is launched vertically out of the machine until it reaches a maximum height of 45 meters. It then falls back to the ground. What is the acceleration of the ball as it falls back to the ground?

• 0.0 m/s²

• 4.0 m/s²

• 9.8 m/s²

• 45.0 m/s²

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NGSS.MS-PS2-4

What is the acceleration of the box in the picture below?

• 2.0 m/s² to the left

• 2.0 m/s² to the right

• 2.7 m/s² to the left

• 7.3 m/s² to the right

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NGSS.MS-PS2-2

The diagram shows two teams competing in a game of tug-of-war. Both teams are pulling with a force of 2,300 newtons (N). What will happen if the team on the left increases its effort and pulls the rope with a force of 2,330 N?

• The team on the left will be able to pull the other team to the left at a constant speed.

• The team on the right will be able to pull the other team to the right at a constant speed.

• The team on the left will be able to pull the other team to the left at an increasing speed.

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NGSS.MS-PS2-2

A little boy is being pulled in a wagon by his mother. Suddenly, the little boy's mother stops to watch for cars before she crosses the street. The little boy's body continues to move forward in the stopped wagon until his feet push against the front of the wagon. The forward movement of the boy's body shows

• Newton's law of gravity.

• Newton's law of force and acceleration.

• Newton's law of inertia.

A man pushes against a brick wall with a force of 100 newtons (N). Which statement best describes the force exerted on the man by the wall?

• The wall pushes back with a force of 100 N

• The wall pushes back with more force than 100 N.

• The wall pushes back with less force than 100 N.

• The wall does not push back with any force

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NGSS.MS-PS2-1

A car, X, with a mass of 1500 kg is moving west with an acceleration of 0.50 m/s². A second car, Y, of equal mass is heading east with an acceleration of 1.0 m/s². Which of the following statements best describes the net force acting on each car?

• A net force of 750 N is acting on car X, and a net force of 1500 N is acting on car Y.

• A net force of 750 N is acting on car X, and a net force of 1500 N due east is acting on car Y.

• A net force of 750 N due west is acting on car X, and a net force of 1500 N is acting on car Y.

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NGSS.MS-PS2-2

A rock is taken from the Moon back to Earth. Which of the following correctly describes the changes to its mass and weight?

• Its mass increases, and its weight increases.

• Its mass has no change, and its weight increases.

A lever is used to remove a rock from the ground. Which lever shown below has the greatest mechanical advantage?

• Option A

• Option B

• Option C

• Option D

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NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

Jennifer watched as movers used a ramp to load a heavy dresser into a moving truck. The dresser, that had to be lifted 1.5 m from the street to the back of the moving truck, was pushed along a 6.6 m ramp. What is the mechanical advantage of the ramp?

• 2.98

• 3.06

• 4.0

• 4.4

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NGSS.MS-ETS1-1