Magnetism

What is a magnet?

• A piece of iron

• Now known as magnesia

• A piece of iron that has its atoms alined

• Found in turkey.

What is magnetism?

• Refers to the properties of magnets

• Refers to the properties and interactions of magnets

• Refers to the interactions of magnets

• None of the above

What are some characteristics of magnets?

• Force decreases as the magnets move closer.

• Force increases as the magnets move apart.

• Magnets always repel.

• Magnets either repel or attract.

What is a magnetic field?

• Exerts a force on other magnets and objects made of magnetic materials

• Exerts a force on other magnets and objects made of any type of material

• It is the weakest when it is the closet to magnets

• None of the above

What are magnetic poles?

• Regions where the magnetic force is weakest

• Named east and west pole

• Disconnect by magnetic field lines

• cheese

• None of the above.

How does the magnetic field determine the direction of the north pole on a compass?

• The north pole of a compass always points away from the north magnetic pole and toward a south magnetic pole; direction of magnetic field

• The north pole of a compass always points towards from the north magnetic pole and toward a north magnetic pole; direction of magnetic force.

Select the characteristics of Earth’s magnetic poles.

• North pole of a compass is attracted to the south magnetic pole

• Earth is like a sphere magnet

• South magnetic pole is near the geographic north pole

• Earth’s North magnetic pole is located in northern Canada

• Magnetic poles can move along with the sun.

Select some magnetic materials

• Iron

• Cobolt

• Paper

• Nickel

• Coal

Do permanent magnets cause the magnetic domains in a material to link up?

• Yes

• No

What happens to a magnet’s pole if it is broken into two?

• Everything blows up.

• It creates tiny magnets.

• It stops working completely

• None of the above