Extra Questions for Class 6 Science Chapter 13 Fun with Magnets Class

Class 6 Science Chapter 13 Fun with Magnets Extra Questions with Answers

In Class 6 Science chapter 13, Fun with Magnets, students learn about magnets and their properties and uses. Extra questions for class 6 science chapter 13 are crucial for reinforcing these concepts and encouraging deeper understanding. They challenge students to apply their knowledge in various contexts, preparing them for more advanced topics in physics. Understanding magnets is not only academically important but also essential for everyday life, as magnets are used in numerous devices and technologies.

Long and Short Answer Type Extra Questions for Class 6 Science Chapter 13 Fun with Magnets

Short Answer Type Extra Questions with Answer Class 6 Science Ch 13 Fun with Magnets (SAQs)

Question 1: Name the compound of iron contained in lode stone.

Answer: The compound of iron contained in lodestone is magnetite (Fe3O4).

Question 2: Name the shepherd after which magnet was named.

Answer: The magnet was named after a shepherd named Magnes.

Question 3: How can you separate a magnetic substance from a mixture?

Answer: You can separate a magnetic substance from a mixture using a magnet to attract and remove the magnetic material.

Question 4: At which place on a magnet, its magnetic force is maximum?

Answer: The magnetic force is maximum at the poles of a magnet.

Question 5: In which direction does a suspended magnet come to rest?

Answer: A suspended magnet comes to rest in the north-south direction.

Question 6: What happens when N-pole of a magnet is brought near the N-pole of a suspended magnet?

Answer: When the N-pole of a magnet is brought near the N-pole of a suspended magnet, they repel each other.

Question 7: How will you test that ‘tea dust’ is not adulterated with iron powder?

Answer: To test if ‘tea dust’ is not adulterated with iron powder, pass a magnet over the tea dust. If iron powder is present, it will be attracted to the magnet.

Question 8: What is magnetic force?

Answer: Magnetic force is the force of attraction or repulsion that a magnet exerts on magnetic materials.

Question 9: What is an electromagnet?

Answer: An electromagnet is a type of magnet where the magnetic field is produced by an electric current.

Question 10: How do magnet trains run without touching the ground?

Answer: Magnet trains, or maglev trains, run without touching the ground by using magnetic levitation, where magnets repel each other to lift the train off the tracks.

Question 11: How should we keep a horseshoe magnet?

Answer: We should keep a horseshoe magnet with a piece of iron across its poles to prevent loss of magnetism.

Question 12: How do magnets lose their property?

Answer: Magnets can lose their property if they are dropped, heated, or exposed to other strong magnetic fields.

Question 13: Classify the following as magnetic and non-magnetic material: Iron, plastic, rubber, glass, mirror, cobalt

Answer: Magnetic: Iron, cobalt Non-magnetic: Plastic, rubber, glass, mirror

Question 14: How can we find out near which end is North Pole located in a bar magnet?

Answer: We can find out near which end the North Pole is located in a bar magnet by using a compass. The North Pole of the compass needle will point towards the South Pole of the bar magnet, indicating the opposite end as the North Pole.

Question 15: If a bar magnet is cut lengthwise into two parts, how many number of poles will form?

Answer: If a bar magnet is cut lengthwise into two parts, each part will have two poles, forming a total of four poles (two North Poles and two South Poles).

NCERT Solutions for Class 6 Science

• Chapter 1 Food: Where Does It Come From?
• Chapter 2 Components of Food
• Chapter 3 Fibre to Fabric
• Chapter 4 Sorting Materials Into Groups
• Chapter 5 Separation of Substances
• Chapter 6 Changes Around Us
• Chapter 7 Getting to Know Plants
• Chapter 8 Body Movements
• Chapter 9 The Living Organisms and Their Surroundings
• Chapter 10 Motion and Measurement of Distances
• Chapter 11 Light, Shadows, and Reflection
• Chapter 12 Electricity and Circuits
• Chapter 13 Fun with Magnets
• Chapter 14 Water
• Chapter 15 Air Around Us
• Chapter 16 Garbage In, Garbage Out

Long Answer Type Extra Questions with Answer for Class 6 Science Chapter 13 Fun with Magnets(LAQs)

Question 1: How can magnets be used to separate junk in a junkyard?

Answer: In a junkyard, magnets can be used to separate magnetic materials from non-magnetic materials. A large electromagnet is often used, suspended from a crane. When the electromagnet is activated, it attracts and lifts magnetic materials such as iron and steel. Once the electromagnet is moved to a desired location, it is deactivated, releasing the magnetic materials into a separate pile. This process efficiently sorts and recycles metal objects, reducing waste.

Question 2: Differentiate between magnetic and non-magnetic material.

Answer: Magnetic materials are those that are attracted to magnets and can be magnetized. They contain domains of aligned atoms that produce a magnetic field. Examples include iron, nickel, and cobalt. Non-magnetic materials, on the other hand, are not attracted to magnets and cannot be magnetized. Their atomic domains are randomly oriented, resulting in no overall magnetic field. Examples include wood, plastic, and glass.

Question 3: How can a compass be used to find directions?

Answer: A compass can be used to find directions by utilizing the Earth’s magnetic field. The needle of a compass is a small magnet that aligns itself with the Earth’s magnetic field, pointing towards the magnetic north. By observing the direction in which the needle points, one can determine the cardinal directions. The end of the needle that points towards the magnetic north is usually marked, and by rotating the compass so that this end aligns with the ‘N’ mark on the compass dial, the user can identify north, south, east, and west directions.

Question 4: Explain magnetisation.

Answer: Magnetisation is the process of inducing magnetic properties in a material. This can be achieved by exposing the material to a strong magnetic field, which aligns the magnetic domains within the material in the direction of the applied field. Methods of magnetisation include stroking the material with a magnet, placing it in a solenoid through which an electric current is passed, or using a permanent magnet. Once magnetised, the material itself becomes a magnet with a north and south pole.

Question 5: How can you make a compass in a cup?

Answer: To make a compass in a cup, fill the cup with water and place a small, magnetized needle or a piece of cork with a magnetized pin on the surface of the water. The needle or pin will align itself with the Earth’s magnetic field, pointing towards the magnetic north. This simple compass can be used to determine the cardinal directions.

Question 6: What care should be taken while handling magnets?

Answer: While handling magnets, certain precautions should be taken to ensure safety and maintain the magnet’s strength. Magnets should be kept away from electronic devices, credit cards, and other items that can be damaged by magnetic fields. They should not be dropped or hit, as this can demagnetize them or cause them to break. Magnets should be stored with opposite poles facing each other to prevent demagnetization. Handling magnets with care will ensure their longevity and effectiveness.

Question 7: How can you make an iron strip into a magnet?

Answer: An iron strip can be made into a magnet by aligning its atomic domains in a uniform direction. This can be achieved by stroking the iron strip repeatedly in one direction with one pole of a strong magnet, or by wrapping a coil of wire around the strip and passing an electric current through the coil, creating an electromagnet. Once the domains are aligned, the iron strip will exhibit magnetic properties.

Question 8: Write two methods by which a magnet can be demagnetised.

Answer: A magnet can be demagnetised by heating it beyond its Curie temperature, at which point the thermal energy disrupts the alignment of its magnetic domains. Another method is to subject the magnet to a strong, alternating magnetic field, which can be achieved by placing it inside a solenoid connected to an alternating current. Both methods result in the randomization of the magnetic domains, effectively demagnetizing the magnet.

Question 9: Write the main properties of a magnet.

Answer: The main properties of a magnet include its ability to attract ferromagnetic materials such as iron, nickel, and cobalt. A magnet has two poles, a north pole and a south pole, which exert the strongest magnetic force. Opposite poles attract each other, while like poles repel each other. A magnet will always align itself with the Earth’s magnetic field when suspended freely, pointing towards the magnetic north and south. These properties are fundamental to understanding and utilizing magnetic phenomena.

CBSE Syllabus for Class 6

• CBSE Class 6 Science Syllabus
• CBSE Class 6 English Syllabus
• CBSE Class 6 Hindi Syllabus
• CBSE Class 6 Social Science Syllabus

Extra Questions Based on Important Topic of Class 6 Science Ch 13 Fun with Magnets Class

Extra Questions – Magnetic and Non-Magnetic Materials

Question 1: Who discovered magnet?

Answer: Magnets were discovered by the ancient Greeks.

Question 2: Name the country in which it (magnet) was discovered.

Answer: Magnets were discovered in the region of Magnesia in Greece.

Question 3: When was magnetite discovered?

Answer: Magnetite was discovered around 600 BC.

Question 4: What is magnetite called now?

Answer: Magnetite is still called magnetite.

Question 5: What are magnetic materials (substances)?

Answer: Magnetic materials are substances that are attracted to magnets, such as iron, cobalt, and nickel.

Question 6: What are non-magnetic substances?

Answer: Non-magnetic substances are materials that are not attracted to magnets, such as wood, plastic, and glass.

Question 7: Write the names of some non-magnetic substances.

Answer: Examples of non-magnetic substances include rubber, copper, and aluminium.

Question 8: Name the first magnet.

Answer: The first magnet was a naturally occurring magnetite rock called lodestone.

Question 9: What is lodestone?

Answer: Lodestone is a naturally occurring magnetic rock, also known as magnetite.

Question 10: Make a list of given substances into two groups – magnetic and non-magnetic.

Answer: Magnetic: Iron, nickel, cobalt. Non-magnetic: Wood, plastic, glass.

Question 11: What are the properties of a magnet?

Answer: The properties of a magnet include attracting certain metals, having a north and south pole, and aligning itself with the Earth’s magnetic field.

Question 12: What are soft and hard magnetic materials?

Answer: Soft magnetic materials are easily magnetized and demagnetized, like iron. Hard magnetic materials retain their magnetism, like permanent magnets.

Extra Questions – Poles of Magnet

Question 1: How many poles are there in a magnet?

Answer: A magnet has two poles: a north pole and a south pole.

Question 2: To which part of the magnet do the most of the iron filings (or pins) stick?

Answer: Iron filings stick most to the poles of the magnet.

Question 3: To which part of the magnet do none or only a few iron filings (or pins) stick?

Answer: Few or no iron filings stick to the middle of the magnet, known as the neutral zone.

Question 4: Are both poles of a magnet similar?

Answer: Both poles of a magnet are not similar; one is the north pole and the other is the south pole.

Question 5: Which is the north-pole of a bar magnet?

Answer: The north-pole of a bar magnet is the pole that points towards the geographic North Pole when the magnet is suspended freely.

Question 6: Which is the south-pole of a bar magnet?

Answer: The south-pole of a bar magnet is the pole that points towards the geographic South Pole when the magnet is suspended freely.

Question 7: Why does a bar magnet always point in north-south directions?

Answer: A bar magnet always points in the north-south direction because it aligns with the Earth’s magnetic field.

Question 8: Where are the south and north poles of Earth’s magnet?

Answer: The south magnetic pole of the Earth is near the geographic North Pole, and the north magnetic pole is near the geographic South Pole.

Question 9: Can we isolate the north-pole or south-pole?

Answer: No, we cannot isolate the north-pole or south-pole; they always come in pairs.

Question 10: Do magnetic poles exist separately like charges? Explain.

Answer: Magnetic poles do not exist separately like charges. If a magnet is cut into pieces, each piece will have both a north and a south pole.

Question 11: What happens when a pole of a bar magnet, say its north-pole, is marked with chalk and suspended freely? What do you observe on rotating the bar magnet?

Answer: When the north-pole of a bar magnet is marked and suspended freely, it will align with the Earth’s magnetic field. On rotating the magnet, it will return to the north-south alignment.

Question 12: Where are the poles of a circular magnet? How will you find this?

Answer: The poles of a circular magnet are located at the two ends of its diameter. You can find them by using a compass or iron filings to see where the magnetic field is strongest.

Question 13: Mark the north-poles of two bar magnets and bring the poles of the magnets near each other, and note down your observations in the table.

Answer: If similar poles are brought near each other, they repel. If opposite poles are brought near each other, they attract.

Question 14: What will happen to the magnet when we cut it into two pieces?

Answer: When a magnet is cut into two pieces, each piece will become a separate magnet with its own north and south poles.

Question 15: When a bar magnet was brought close to a compass, the orientation of the needle became as shown in the figure. Identify the poles on the ends of the bar magnet marked ‘A’ and ‘B’. Explain how you arrived at your answer.

Answer: If the compass needle points towards ‘A’, then ‘A’ is the south pole of the bar magnet, and ‘B’ is the north pole. This is because the north pole of the compass needle is attracted to the south pole of the bar magnet.

Extra Questions – Finding Directions

Question 1: In which direction does a freely suspended magnet rest?

Answer: A freely suspended magnet rests in the north-south direction.

Question 2: How did we come to know that a magnet is helpful to find (detect) directions?

Answer: We came to know that a magnet is helpful in finding directions because a freely suspended magnet always aligns itself with the Earth’s magnetic field, pointing north-south.

Question 3: Why is a compass needle kept in a closed glass vessel?

Answer: A compass needle is kept in a closed glass vessel to protect it from wind and dust and to ensure it moves freely.

Question 4: Does the compass needle point in different directions?

Answer: No, the compass needle consistently points in the north-south direction.

Question 5: Hang a bar magnet with a thread on a stand and rotate the base of the stand. What will happen?

Answer: The bar magnet will initially rotate with the stand, but it will eventually come to rest in the north-south direction.

Question 6: How do shipmen find the direction even when the north-pointing pole star is not visible?

Answer: Shipmen use a compass to find the direction, as the compass needle points towards the magnetic north, even when the pole star is not visible.

Extra Questions – Make Your Own Magnet

Question 1: Can an ordinary vessel (lota) be magnetised?

Answer: Yes, an ordinary vessel made of ferromagnetic material like iron can be magnetised.

Question 2: Can a magnet be demagnetised? How?

Answer: Yes, a magnet can be demagnetised by heating it to a high temperature or striking it hard.

Question 3: How should two-bar magnets be kept?

Answer: Two-bar magnets should be kept with their opposite poles facing each other to avoid demagnetisation.

Extra Questions – Attraction and Repulsion Between Magnets

Question 1: What happens when similar poles come close to each other?

Answer: When similar poles of magnets come close to each other, they repel.

Question 2: When do two magnets attract each other?

Answer: Two magnets attract each other when their opposite poles are brought close together.

Question 3: How can you show that unlike poles attract each other while like poles repel each other?

Answer: You can show this by bringing the poles of two magnets close to each other and observing the attraction and repulsion.

Question 4: Bhawana witnessed an interesting game at the fair. A duck was floating in a tub. When a plate containing some grains of rice was brought close to the duck, the duck moved towards the plate. But, when a plate containing some pebbles was brought close to the duck, it moved away from the plate. Explain how this could have been possible.

Answer: This could have been possible if the duck was magnetised and the grains of rice were placed on a magnetic plate, attracting the duck. The pebbles, being non-magnetic, did not attract the magnetised duck, so it moved away.

Question 5: What do you mean by magnetic field?

Answer: A magnetic field is the region around a magnet where its magnetic force can be felt. It is represented by magnetic field lines.

Question 6: What is MRI?

Answer: MRI (Magnetic Resonance Imaging) is a medical imaging technique that uses a strong magnetic field and radio waves to create detailed images of the organs and tissues inside the body.

Extra Multiple Choice Questions (MCQs) for Class 6 Science Chapter 13 Fun with Magnets

Question 1: Which of the following materials is attracted to a magnet?

a) Wood

b) Plastic

c) Iron

d) Glass

Answer: c) Iron

Question 2: What is the name of the natural magnet?

a) Electromagnet

b) Lodestone

c) Bar magnet

d) Horseshoe magnet

Answer: b) Lodestone

Question 3: Which of the following is not a property of a magnet?

a) Attracts iron

b) Has a north and south pole

c) Can be demagnetized by heating

d) Generates electricity

Answer: d) Generates electricity

Question 4: Where is the magnetic force the strongest in a magnet?

a) In the middle

b) At the north pole

c) At the south pole

d) At both poles

Answer: d) At both poles

Question 5: What happens when opposite poles of two magnets are brought close to each other?

a) They attract

b) They repel

c) Nothing happens

d) They become demagnetized

Answer: a) They attract

Question 6: Which of the following is a non-magnetic material?

a) Nickel

b) Cobalt

c) Iron

d) Glass

Answer: d) Glass

Question 7: How can a piece of iron be magnetized?

a) By heating it

b) By cooling it

c) By striking it

d) By stroking it with a magnet

Answer: d) By stroking it with a magnet

Question 8: What is the phenomenon of a magnet always pointing in the north-south direction called?

a) Magnetization

b) Polarization

c) Magnetic induction

d) Magnetic orientation

Answer: d) Magnetic orientation

Question 9: Which of the following devices uses a magnet?

a) Compass

b) Thermometer

c) Barometer

d) Hygrometer

Answer: a) Compass

Question 10: What happens to a magnet if it is cut in half?

a) It loses its magnetic properties

b) Only one piece remains magnetic

c) Each half becomes a new magnet with both poles

d) It becomes an electromagnet

Answer: c) Each half becomes a new magnet with both poles

FAQs on Class 6 Science Chapter 13 Fun with Magnets Extra Questions

Which magnet cannot be separated?

A single magnet cannot be separated into parts that are not magnets. If you cut a magnet, each piece will still have a north and a south pole.

How are magnets used in recycling?

In recycling, magnets are used to separate magnetic materials like steel and iron from other non-magnetic materials. This helps in sorting and recycling metal effectively.

How natural magnets were discovered?

Natural magnets, also known as lodestones, were discovered when people noticed that some rocks could attract iron. These rocks were later found to be magnetite.

What care should be taken while handling magnets Class 6?

When handling magnets, keep them away from electronic devices, avoid dropping them, and store them properly with opposite poles facing each other.

How can magnets be used to separate junk in a junkyard?

Magnets can separate magnetic junk like iron and steel from non-magnetic materials. A large magnet can pick up magnetic metals, leaving other junk behind.

What are 3 uses of magnets?

Magnets are used in compasses for navigation, in motors and generators for producing electricity, and in magnetic locks for security purposes.