Quiz on Magnetism

Which of the following is a natural magnet?

• Lodestone

• Nickel

• Iron

• Steel

What are ferromagnetic materials?

• Materials that do not attract magnets

• Materials that can be magnetized

• Materials that are made of plastic

• Materials that are always magnetic

What are the two poles of a magnet called?

• Top and Bottom

• Positive and Negative

• North and South

• East and West

What happens to magnetic domains in a magnetic material when a magnet is brought near?

• They scatter randomly

• They align themselves

• They become permanent magnets

• They disappear

What is the effect of like poles of magnets when placed next to each other?

• They attract each other

• They repel each other

• They have no effect

• They create a neutral point

Which of the following is a method to demagnetize a magnet?

• Placing it in a magnetic field

• Heating it to a high temperature

• Storing it in a closed container

• Stroking it with another magnet

What is a characteristic of magnetically soft materials?

• They lose their magnetism easily

• They are hard to magnetize

• They are made of gold

• They are always permanent magnets

What is the purpose of 'keepers' when storing magnets?

• To enhance their magnetic field

• To display them safely

• To make them stronger

• To connect the poles and prevent demagnetization

What is the space occupied by the flux lines around a magnet called?

• Magnetic energy

• Magnetic field

• Magnetic domain

• Magnetic force

Which material is commonly used in the core of electromagnets?

• Plastic

• Iron

• Aluminum

• Copper