Types of Forces Review

Which option matches each force with its correct position in the table?

• 1: Gravity; 2: Friction; 3: Applied Forces; 4: Magnetism

• 1: Magnetism; 2: Gravity; 3: Applied Forces; 4: Friction

• 1: Gravity; 2: Friction; 3: Magnetism; 4: Applied Forces

• 1: Applied Forces; 2: Friction; 3: Gravity; 4: Magnetism

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NGSS.MS-PS2-1

NGSS.MS-PS2-2

Three bar magnets, each with opposing poles, are placed near each other in a straight line. Which correctly describes how the magnets will move?

• Magnets A and B will repel each other, and B and C will attract.

• Magnets A and B will attract each other, and B and C will repel.

• All magnets will repel each other.

• All magnets will attract each other.

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

Which of the following best identifies and describes the force shown in the image?

• The apple is being pulled toward the ground by gravity due to the strong gravitational force of Earth.

• The apple fell from the tree and toward the ground due to friction of the wind pushing past the apple.

• The apple is being pulled toward Earth due to the strong magnetic pull of Earth.

• The apple is being pushed toward Earth due to applied forces once it breaks free from the branch.

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NGSS.MS-PS2-2

NGSS.MS-PS2-4

What force pulls the paper clip down toward the Earth?

• Friction

• Magnetic force

• Normal contact force

• Gravitational force

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NGSS.5-PS2-1

Which example does NOT demonstrate the force of friction?

• A bike rolling down a hill

• Rubbing hands together to keep warm

• Air rushing over a car

• A pot resting on a silicone pad

What is the effect of gravitational force on the paper clip?

• It moves the paper clip toward the magnet

• It keeps the paper clip still

• It pulls the paper clip down toward the Earth

• It has no effect

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NGSS.MS-PS2-2

NGSS.MS-PS2-4

Select the arrow that indicates gravitational force.

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NGSS.MS-PS2-4

NGSS.MS-PS2-5

Fill in the blank: Objects that are closer together have ​ (a)   of a gravitational force between them than objects that are further apart

• more
• less

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NGSS.HS-PS2-4

As the distance between objects increases, the force of gravity between them

(a)  

• increases
• decreases
• stays the same

Match the following

• magnet

• the area around a magnet where its force can attract or repel

• magnetism

• an object made of a material that can attract objects made of iron, cobalt, steel, and nickel

• magnetic field

• the ability of an object to push or pull on another object that has magnetic property

• pole

• one of the two ends of a magnet where the magnetic force is the strongest

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NGSS.3-PS2-4