Force and Motion

Brian and Emily are testing different paper airplane designs to see which will allow a plane to travel the farthest distance. Emily folds her plane and attaches a paperclip to the front of it. After she throws the plane, it travels about fifty feet and then falls to the ground. Why does the plane eventually fall to the ground? (SC.5.P.13.1)

• A. The force of air resistance stops acting on the plane.

• B. The plane was not designed to carry a load like the paperclip.

• C. The force of gravity is greater than the forces keeping the plane in the air.

• D. The paperclip creates a magnetic force that attracts the plane to the ground.

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NGSS.3-PS2-1

Julio and Tammy are moving a dresser. They are arguing about which direction to move it. Julio is pushing the dresser with a force of 5 Newtons towards Tammy. Tammy is pushing the dresser towards Julio with a force of 10 Newtons. What happens to the dresser due to the forces applied? (SC.5.P.13.2)

• A. The dresser does not move.

• B. The dresser moves towards Julio.

• C. The dresser moves towards Tammy.

• D. The dresser moves towards Tammy, then back towards Julio.

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NGSS.3-PS2-2

Some mornings Marcie rides in her mother's car to school, and other mornings she rides in her father's car. Marcie noticed that when she rides in her mother's car, it takes less time to travel the same distance as when she is in her father's car. Based on the information above, which of the following statements is true? (SC.5.P.13.2)

• A. Her mother's car is traveling at a greater speed than her father's car.

• B. Her father's car is traveling at a greater speed than her mother's car.

• C. Both cars are traveling at the same speed since they travel the same distance.

• D. Both cars accelerate at the same rate, but her mother's car has a greater mass.

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Magnets have a north and south pole. What happens if you try to touch the north and south ends of two magnets together? (SC.5.P.13.1)

• A. The north and south poles will repel each other.

• B. The north and south poles will be attracted to each other.

• C. The north and south poles will neither attract nor repel each other.

• D. The north and south poles will create gravity and attract other objects.

Look at the picture of the water fountain. Which statement about the picture best describes the effect of gravity? (SC.5.P.13.1)

• A. On a hot day, the grass around the fountain becomes very warm.

• B. The water moves into the air.

• C. The sun warms the water in the fountain.

• D. The water that moves into the air falls back to the fountain.

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NGSS.5-PS2-1

Peter is playing tug of war with Michael. They both understand that to win the game of tug of war, one player must pull the flag over their opponent's line, but during this game, the flag tied to the center of the rope is not moving. What is happening to the rope in this example? (SC.5.P.13.2)

• A. Peter is applying more force in one direction.

• B. Michael is applying more force in one direction.

• C. Peter and Michael are applying equal forces in the same direction.

• D. Peter and Michael are applying equal forces in opposite directions.

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Which object will move the farthest with 5 newtons (N) of force? (SC.5.P.13.2)

• A. a paper clip

• B. a stapler

• C. a notebook

• D. a computer

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Tameika's mom parked their car on the road. Tameika ran from the car to the house. Which statement is true about Tameika's movement? (SC.5.P.13.2)

• A. Tameika changed direction but did not change position.

• B. Tameika's speed was the same throughout the movement.

• C. Tameika changed position and may have changed direction.

• D. Tameika's position was the same throughout the movement.

Noah is playing with a soccer ball at the top of a hill. Noah kicks the ball and it rolls down the hill. Which of the following best describes what happens as the ball rolls? (SC.5.P.13.1)

• A. The force of gravity pulls the ball downhill.

• B. The force of friction causes the ball to roll faster down the hill.

• C. The force of gravity is balanced by air resistance acting on the ball.

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

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NGSS.5-PS2-1

Ruben slides a book across the floor. Eventually, the book will stop moving. What force causes the book to come to rest? (SC.5.P.13.1)

• A. gravity

• B. friction

• C. Ruben's push

• D. air resistance

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