Magnetic field

Identify the metal that is magnetic?

• Copper

• Cobalt

• Steel

• Carbon

Where is the density of magnetic field higher?

• North pole

• centre of the magnet

• Poles

• South pole

What is the direction of magnetic field?

• Towards north

• Towards the centre of magnet

• North to south.

• North to south on one side and south to north on the other side.

Why do bigger/stronger magnets attract magnetic materials that are far away from it?

• The bigger the magnet, the stronger they are.

• They have a larger field

• They have two north and south poles

• Their North pole is more stronger

Identify the correct option

• Magnetic field lines are parallel to each other

• magnetic field lines cross each other

• Magnetic field lines never cross each other

• Filed lines are always discontinuous.

What are domains of a magnet?

• Region inside a magnet where there is no force of attraction

• The poles of magnet where the strength is the most

• A region within a magnetic material.

• Particles present in a non magnetic materials.

Fill in the blank

A ---------------------can spin freely to align itself with Earth's magnetic field.

• Strong magnet

• magnetic material

• Suspended magnet

• Motor

Magnetic field lines don't start or stop anywhere, they always make ....................

• magnets strong

• attract magnetic material

• closed loops

• attraction.

How do we magnetise a magnetic material?

• We cannot magnetise a magnetic material

• Rub a permanent magnet repeatedly in one direction along the magnetic material

• Rub a permanent magnet repeatedly in both direction along the magnetic material

• Rub a permanent magnet repeatedly in all the direction around the magnetic material

What is a magnetic field around a magnet?

• The magnetic field is only present inside the magnet.
• The magnetic field is a type of physical matter.
• The magnetic field can only be seen with the naked eye.
• The magnetic field around a magnet is the area where magnetic forces are exerted.