Magnetism

What is the property of attracting iron, nickel, and cobalt known as?

• paramagnetism

• ferromagnetism

• diamagnetism

• magnetization

What is the region around a magnet where its magnetic force is felt?

• magnetic sphere

• magnetic field

• magnetic zone

• magnetic radius

What happens when you break a magnet into two pieces?

• The magnet becomes stronger when broken.

• The magnet loses its magnetic properties completely.

• The two pieces repel each other due to magnetic forces.

• Each piece becomes a magnet with its own north and south poles.

What is the SI unit of magnetic field strength?

• Gauss (G)

• Ampere (A)

• Tesla (T)

• Newton (N)

How can you demagnetize a magnet?

• Freeze it in liquid nitrogen

• Heat it to a high temperature or subject it to strong vibrations

• Expose it to sunlight for an extended period

• Dip it in water and salt solution

What will happen when these magnets are brought close together?

• They will attract each other.
• They will repel each other.
• Both magnets will turn to the left
• Both magnets will turn to the right