Magnet Materials Quiz

What are the two main types of magnets?

• ferromagnets and diamagnets

• north magnets and south magnets

• positive magnets and negative magnets

• permanent magnets and electromagnets

Which type of magnet retains its magnetism permanently?

• Temporary magnet

• Permanent magnet

• Electromagnet

• Magnetic field

What is the process called when a magnet loses its magnetism?

• magnetism loss

• demagnetization

• magnetification

• magnetization

What is the SI unit of magnetic field strength?

• Tesla

• Volt

• Ohm

• Ampere

Which type of magnet is created by passing an electric current through a coil of wire?

• permanent magnet

• diamagnet

• electromagnet

• ferromagnet

What is the main advantage of electromagnets over permanent magnets?

• Ability to switch the magnet on and off

• Ability to generate a stronger magnetic field

• Ability to adjust the strength of the magnet

• Control of magnetic field

Which material is commonly used as the core of an electromagnet?

• copper

• wood

• iron

• plastic

What is the term for materials that can be magnetized and are attracted to magnets?

• diamagnetic

• ferromagnetic

• paramagnetic

• nonmagnetic

Which type of magnet is used in refrigerator magnets?

• electromagnets

• ferromagnets

• diamagnetic materials

• permanent magnets

What is the most common ferromagnetic material?

• copper

• aluminum

• steel

• iron