Test - Magnetism

What is a magnet said to be because it has two distinct and opposite ends called poles?

• Charged

• Polarized

• Balanced

• Energized

What happens when you break a magnet in half?

• It loses its magnetic properties.

• It creates two smaller magnets, each with one pole.

• It creates two smaller magnets, each with two poles.

• It becomes a non-magnetic material.

What do like poles of magnets do?

• They attract each other.

• They repel each other.

• They do nothing.

• They merge together.

Tags

NGSS.MS-PS2-3

What do magnets attract besides other magnets?

• Plastic and wood

• Nails, tacks, paper clips, and many other metal objects

• Glass and ceramic

• Water and oil

What is the interaction between a magnet and a piece of metal?

• Either end of a magnet will attract either end of a piece of metal.

• Like poles of a magnet will attract like ends of a piece of metal.

• A magnet will repel all pieces of metal.

• Only the north-seeking pole of a magnet will attract a piece of metal.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Which metals are strongly attracted by magnets?

• Copper, aluminum, and lead

• Iron, nickel, and cobalt

• Zinc, tin, and mercury

• Silver, gold, and platinum

Tags

NGSS.MS-PS2-3

What are materials called that contain elements like iron, nickel, and cobalt and can become temporary magnets?

• Paramagnetic materials

• Diamagnetic materials

• Ferromagnetic materials

• Electromagnetic materials

What is a domain in the context of ferromagnetic materials?

• A single atom with magnetic properties

• A group of neighboring atoms whose poles are aligned

• The space around a magnet where magnetic forces are exerted

• A type of permanent magnet

What happens to the domains in a ferromagnetic material when it is not magnetized?

• The domains are aligned in one direction.

• The domains rotate continuously.

• The domains point in a random direction.

• The domains do not exist.

How does a ferromagnetic material become a temporary magnet?

• When it is cooled below a certain temperature.

• When it is heated above a certain temperature.

• When it is placed next to a strong magnet and the domains align in the direction of the external magnet's poles.

• When it is electrically charged.