Unit 3 Science Review: Force and Motion

The picture shows an athlete throwing a football.

What type of force is used to throw the ball?

• • A pull to move the ball across the field

• • A push to move the ball away from the athlete

• Friction to make the ball move faster

• Gravity to keep the ball close to the ground

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The picture shows a man pushing a girl on a swing.

 
  Which statement best describes what will happen.

• • The man changes position.

• • The swing changes position.

• • The man and the swing change position, moving back and forth.

• • The man and the swing will move in opposite directions.

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In a game of soccer, a player kicks a ball towards a net that is protected by a goalie. What will most likely happen to the ball if the goalie hits it?

• It will stop and fall to the ground.

• It will hit the net behind the goalie.

• It will fly in the air and hit the coach.

• .

  It will change direction, go back toward the player or somewhere on the field.

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A marble is released at the top of each of the ramps below. From which ramp will the marble travel the FARTHEST across the floor?

• 
• 
• 

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The main reason a baseball comes down when a boy tosses it up into the air is 

• •  magnetism is pulling the ball down

• • the boy cannot see to catch it

• • gravity is pulling down on the ball

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What will most likely occur as the magnet gets closer to the steel paper clip?

• • The paper clip will begin to move closer to the magnet.

• • The paper clip will move away from the magnet.

• • The paper clip will vibrate and shake.

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The force of attraction between the Earth and an object is called —

​ ​ (a)  

• gravity
• magnetism
• energy
• mass

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Giana pushes a shopping cart across the parking lot of HEB. It rolls passed several parked cars and then begins to slow down, stopping right before it hit Ms. Livingston's car. What force made the cart slow down?

(a)  

• Friction
• Magnetism
• Gravity

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What is the main reason a paper airplane changes direction after it is thrown into the air?

• • Gravity pushes the paper airplane up.

  
  

• • Gravity pulls down on the paper airplane.

• • Magnetism pushes the paper airplane up.

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Two teams are pulling on a rope with equal force during a game

of tug-of-war. What will happen to the rope?

• It will stay in the same place.

• It will fly in the air.

• It will move toward Team 1.

• It will move toward Team 2.

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