Magnets and Magnetic Materials

IMPORTANT

Magnets and Magnetic Materials: Overview

This Topic covers sub-topics such as Magnetic Material, Poles of Magnet, Magnetic Needle, Cylindrical Magnet, Artificial Magnet, Magnetic Material and Non-magnetic Material, Non-magnetic Material, Different Shapes of Magnet and, The Magnetic Compass

Important Questions on Magnets and Magnetic Materials

MEDIUM
IMPORTANT

Why does the bulk of iron fillings slick to the ends of a bar magnet and not at its centre?

HARD
IMPORTANT

How do you make a compass without a cork?

MEDIUM
IMPORTANT

What is float in a magnetic compass?

MEDIUM
IMPORTANT

How can you make a compass with a needle and a leaf?

HARD
IMPORTANT

How do you make a homemade compass?

HARD
IMPORTANT

Mention the use of Lodestone in early days by Chinese people.

MEDIUM
IMPORTANT

When was lodestone first found?

MEDIUM
IMPORTANT

How the use of Iodestone affected life in early days?

HARD
IMPORTANT

What are artificial magnets and how they are made?

HARD
IMPORTANT

What are ring magnets, and where are they used?

MEDIUM
IMPORTANT

What are oval magnets?

HARD
IMPORTANT

How to make a magnetic compass all by ourselves?

HARD
IMPORTANT

What is a lodestone and how it was used in earlier days?

HARD
IMPORTANT

List different shapes of magnets.

EASY
IMPORTANT

List out some ways to demagnetise a magnet.

EASY
IMPORTANT

In magnetic compass, a magnetic needle which always directs ______.

EASY
IMPORTANT

Computers and CD's should not be kept near _____.

MEDIUM
IMPORTANT

What are the effects of magnets on compact disc?

EASY
IMPORTANT

A magnet may be attracted to the metal surface of the CD and ruin the data stored in it.

EASY
IMPORTANT

We should keep magnets away from compact discs.