Force and Motion

A small metal spoon containing iron is on a table. What will happen to the spoon if a magnet is moved under the table?

• The spoon will move because of friction under the table.

• The spoon will move, but only if the magnet is made of plastic

• The spoon will move, but only if the table is made of wood.

• The spoon will move because of magnetic attraction.

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NGSS.MS-PS2-5

NGSS.MS-PS2-3

Which will be attracted to a magnet?

• a plastic soda bottle

• a glass milk bottle

• a cloth sock

• an iron nail

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NGSS.MS-PS2-5

NGSS.MS-PS2-3

Which best explains why magnets can cause some objects to move?

• Magnets can pull or push other magnets but must be touching them.

• Magnets can pull objects made out of iron but must be touching them.

• Magnets can pull objects without touching if the objects are made out of iron.

• Magnets can push objects without touching if the objects are made of copper.

Tags

NGSS.MS-PS2-5

NGSS.MS-PS2-3

Juan adds a charge to a balloon by rubbing it on his hair. What will happen if the balloon is placed near a pile of metal paper clips?

• The paper clips will not be affected by the balloon.

• The paper clips will move away from the balloon.

• The paper clips will move towards the balloon.

• The paper clips will add more charges to the balloon.

Tags

NGSS.MS-PS2-5

NGSS.MS-PS2-3

How could a paper clip move across a sheet of paper without anything touching the magnet?

• The paper clip is made from iron and there is a moving magnet under the paper.

• The paper clip is made from plastic and there is a moving magnet under the paper.

• The paper clip is made from copper and there is a moving magnet under the paper.

• The paper clip is made from brass and there is a moving magnet under the paper.

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NGSS.MS-PS2-5

NGSS.MS-PS2-3

The picture shows six objects. Each object is hanging from a string. Three of the objects have a positive charge and three have a negative charge.

Which statement explains the movement of the objects based on their charges?

• Like charges pull on each other.

• Opposite charges push each other apart.

• Opposite charges and like charges pull on each other.

• Opposite charges pull on each other, but like charges push each other apart.

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NGSS.MS-PS2-5

NGSS.MS-PS2-3

Which statement best explains how electrically charged objects produce motion?

• Objects with opposite electrical charges repel each other.

• Objects with the same electrical charge produce magnets.

• Objects with opposite electrical charges attract each other.

• Objects with the same electrical charge produce opposite charges.

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NGSS.MS-PS2-5

Sara rubbed her feet on the carpet while wearing socks. She then touched the doorknob and felt a small shock. Why did Sara feel a shock when she touched the doorknob?

• because her hand was repelled from the doorknob

• because her feet became attracted to the floor

• because air moved when she rubbed her feet on the floor

• because an electric charge was created when she rubbed her feet on the carpet

Tags

NGSS.MS-PS2-5

What will happen when two balloons are each rubbed against a piece of wool and then put next to a person’s hair?

• The two balloons will break.

• The two balloons will stick together.

• The person’s hair will be attracted to the balloons.

• The person’s hair will not be attracted to the balloons.

Tags

NGSS.MS-PS2-5

NGSS.MS-PS2-3

What can be the result when static electric charges build up in storm clouds?

• Rain will fall.

• Lightning will strike.

• A tornado will occur.

• Strong winds will blow.