Understanding Magnetism

What is the area around a magnet where magnetic forces are exerted called?

• Magnetic circle

• Magnetic zone

• Magnetic area

• Magnetic field

Which of the following is NOT a ferromagnetic material?

• Copper

• Nickel

• Iron

• Cobalt

Which of the following materials will a magnet attract?

• Wood

• Plastic

• Steel

• Glass

What happens when like poles of two magnets are brought close to each other?

• They lose their magnetism

• They become neutral

• They repel each other

• They attract each other

In the pendulum experiment, why does the screw float in mid-air?

• Because the screw is not metallic

• Because the screw is weightless

• Because of the magnetic field and the rope's tension

• Because the magnet is very strong

What happens if you cut a magnet in half?

• It becomes a single weaker magnet

• It stops working

• It becomes two new magnets

• It loses its magnetic properties

Why is Earth's magnetic field crucial for life?

• It keeps the Earth warm

• It controls the weather

• It helps plants grow

• It protects from the sun's radiation

How do migratory birds use Earth's magnetic field?

• To build nests

• To navigate during migration

• To communicate with each other

• To find food

What is the role of a compass needle?

• To point towards the nearest magnet

• To point towards the sun

• To always point north

• To measure temperature

What is the primary reason Earth is considered a magnet?

• Its atmosphere

• Its shape

• Its rotation

• Its iron core