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Fun With Magnets Class 6 Notes CBSE Science Chapter 13 (Free PDF Download)

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Last updated date: 23rd May 2024
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Revision Notes for CBSE Class 6 Science Chapter 13 Fun with Magnets - Free PDF Download

Uncover the secrets of attraction and repulsion, and dive into exciting experiments. This chapter makes science an engaging adventure, exploring the fascinating phenomena of magnets. Free PDF download of Class 6 Science Chapter 13 - Fun with Magnets Revision Notes & Short Key-notes prepared by expert Science teachers from the latest edition of CBSE(NCERT) books.


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Access Class 6 Science Chapter 13 - Fun with Magnets Notes in 30 Minutes

Magnet:

  • Magnets are compounds that have the ability to attract materials such as iron, cobalt, and nickel.

  • Magnes, an ancient Greek shepherd, was the first to discover a magnet.

  • There are two types of magnet, as

  1. Natural Magnet :

  • The magnet that is found in nature is a Natural Magnet.

  • Magnetite, Lodestone are examples of Natural Magnets.

  1. Artificial Magnet : 

  • Artificial magnets are created by humans.


Magnetic Force:

1. The magnetic force is the force that a magnet uses to attract an object to itself.

2. When two magnets are close enough to touch or come into contact, they exert a force on each other, similar to how electrical charges do. The magnetic force is this force.


Poles of a Magnet:

1. Magnetic materials (such as iron filings) do not adhere equally to all areas of a magnet when brought close to it. They stick to certain areas of the magnet more than others. These are known as the magnet's poles. 

2. At the poles, magnetic forces are the strongest.

3. Every magnet is bipolar, which means it has two poles at the ends.

4. The North and South poles are the two poles of a magnet.


  • North Pole:

The north-seeking end, often known as the North Pole, is the end that points northward.

  • South Pole:

The end pointing south is known as the South Pole or the south seeking.

  • The N-S axis of a freely hanging magnet is always aligned.

  • Poles that are similar repel each other, while poles that are dissimilar attract each other.

  • Magnetic poles are always found in groups of two.

  • A bar magnet is divided into four poles when split in half, with a North and South Pole on each side.


Different Types and Shapes of Magnets:

Magnets are categorised into numerous categories based on their shapes, these are listed as below;

  1. Bar magnet

  2. Ball-ended magnet ( Dumb-bell )

  3. Horseshoe magnet

  4. Cylindrical magnet

  5. Magnetic needle

  6. Artificial magnet

  7. Loadstone ( natural magnet)

  8. Ring or disc shape magnet

Temporary Magnets:

  • Temporary magnets are magnets that are only used for a limited period of time.

  • Iron bar magnets are used as temporary magnets.

Permanent Magnets:

  • Permanent magnets have a long lifespan. 

  • They're made of steel or an AlNiCo alloy, which combines aluminium, nickel, and cobalt.


Classification of Substances Based on Attraction to Magnets:

  • Magnetic Substances: Magnets are compounds that have the ability to attract materials such as iron, cobalt, and nickel, etc.

  • Non-Magnetic Substances: Nonmagnetic materials include plastic, wood, paper, rubber, most metals and other materials that are not attracted to a magnet.


Methods to Make Your Own Magnet:

  1. Single Touch Method: The iron object becomes magnetised when a magnet is used to massage it along its length from one end to the other, similar to combing one's hair.

  2. Double Touch Method: The bar or the object becomes a magnet when it is rubbed by two powerful bar magnets of equal strength with their opposite poles at the centre, in opposite directions.

  3. Using Electric Current: The magnetic bar is inserted inside a conductor's coils, and current is passed via the wire coils.


Properties of Magnet:

  1. The North Pole and the South Pole are the two poles of a magnet.

  2. Poles that are similar repel one other.

  3. Opposing poles are attracted to one another.

  4. Magnetic poles are always found in groups of two.

  5. There is no magnet that compares to a monopolar magnet. When it comes to magnets, they are always bipolar.


Applications of Magnet:

  • Compass Needle: The compass consists of a small glass container with a magnetised needle pivoting on an aluminium nail. The needle is unrestricted in its rotation. Because the earth is also a gigantic magnet, it points north-south. The magnetic field of the earth is aligned with the compass.

  • In factories, it's used to move massive amounts of iron, such as scrap iron.

  • An electromagnet is used in doorbells and chimes.

  • Permanent magnets in loudspeakers are used by surgeons in hospitals to remove steel splinters from wounds.

  • Used to separate iron and steel from non-magnetic materials in the building of telephones, electric bells, and other devices.

  • A strip of magnetic material on credit cards, ATM cards, and identity cards retain information.

  • Magnets are used in television and computer monitors.

  • Magnetic material is used to store information on computer hard discs, as well as audio and video cassettes.

  • In the scrapyard, magnets are used to pick up iron-based materials.


Demagnetisation, (Loss of Magnetic Property of a Magnet):

  • When a magnet is hammered, heated, improperly stored, or dumped with force and strikes against a hard substance, it loses its magnetic property.

  • Each pole will destroy the other by induction if two bar magnets are not stored with their similar poles pointing in the same direction.

  • Dropping from a height dissimilar poles alongside each other is the best way to store bar magnets in pairs. 

  • A piece of soft iron should be placed across the poles of a horseshoe magnet when storing it.


Taking Care of Magnets:

  • Magnets should be stored in non-magnetic materials such as cardboard or wood when not in use. 

  • Keepers must be used to safeguard magnets.


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FAQs on Fun With Magnets Class 6 Notes CBSE Science Chapter 13 (Free PDF Download)

1. What is a magnet?

Chapter 13 of Class 6 Science “Fun with Magnets” is based on the concept, types, properties and applications of a magnet. It gives an overview of the magnetic world and helps us understand the use and importance of magnets. Magnets were first discovered by a German person named Magnes. They are said to be objects that have the ability to attract materials such as iron, nickel and cobalt and they have a wide range of applications in our daily lives.

2. What are magnets used for according to Chapter 13 Class 6 Science?

Magnets are objects that have the property to attract different materials. They have wide applications in our daily lives and are a multipurpose substance. Magnets are used in the mariners' compass to find direction. It is used in scrap yards and factories to carry massive iron scrap. The electromagnetic properties are used in doorbells and chimes. Magnets are also used in TV, loudspeakers, and computers. They are used to separate iron and steel from non-magnetic materials while making telephones and other such devices.

3. What are the different types of magnets?

Magnets are famous for their properties of attraction and they have wide application. There are different types of magnets based on their shapes like the bar magnet, horseshoe magnet, disc magnet, dumbbell magnet, cylindrical magnet, the magnetic needle used in a compass, and artificial magnets. Magnets can also be classified as temporary magnets, which are magnets that are used only for a limited time and permanent magnets, magnets that are used for a long time, based on their properties.

4. What are magnetic and non-magnetic substances given in Science Chapter 13 of Grade 6?

Chapter 13 of Class 6 Science is based on magnets and their properties. According to it, the substances are classified as either magnetic or non-magnetic, based on their attraction to magnets. The objects that are easily attracted to magnets are called magnetic substances. Iron, nickel and cobalt are the best examples of magnetic substances. Other objects like wood, plastic, paper, rubber and most of the metals that do not attract a magnet are known as non-magnetic substances. To know more students can visit the Vedantu app or website.

5. What is a magnetic force according to Chapter 13 Class 6 Science?

According to Chapter 13 of Science, a magnet has the ability to attract other objects. The force that a magnet uses to attract an object is called the magnetic force. When two magnets are brought close to each other to come into contact or they are close enough to touch each other, they exert a force on each other that causes attraction, like electric charges do. This force that the magnets exert on each other is the magnetic force.

6. What are the properties of a magnet?

Magnets illustrate varied properties and they come in different shapes. Usually, magnets have two poles of attraction, the north pole and the south pole. Like poles, that is the north pole and north pole or the south pole and south pole, repel each other. Unlike poles, that is the north-south poles of magnets attract each other. The magnetic poles are always in groups of two. Magnets do not compare to unipolar magnets, they are always bipolar. To know more about this chapter, students can download the revision notes free of cost from the Vedantu website.