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All questions of Magnetism for Class 6 Exam
Which scientist is known as the "Father of Electricity and Magnetism"?- a)Thomas Edison
- b)Nikola Tesla
- c)Albert Einstein
- d)Sir William Gilbert
Correct answer is option 'D'. Can you explain this answer?
Which scientist is known as the "Father of Electricity and Magnetism"?
a)
Thomas Edison
b)
Nikola Tesla
c)
Albert Einstein
d)
Sir William Gilbert
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Headway Institute answered |
Sir William Gilbert is recognized as the "Father of Electricity and Magnetism" for his groundbreaking work in the late 16th century, including the idea that the Earth itself acts as a giant magnet and his studies on magnetic forces.
What occurs at the neutral point between two magnets facing each other with like poles?- a)The magnets attract each other
- b)There are no magnetic lines of force
- c)The magnetic field is strongest
- d)The magnets repel each other
Correct answer is option 'B'. Can you explain this answer?
What occurs at the neutral point between two magnets facing each other with like poles?
a)
The magnets attract each other
b)
There are no magnetic lines of force
c)
The magnetic field is strongest
d)
The magnets repel each other
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Headway Institute answered |
At the neutral point between two magnets with like poles facing each other, there are no magnetic lines of force, indicating that the magnetic fields cancel each other out, resulting in a neutral area.
Which of the following materials is considered non-magnetic?- a)Iron
- b)Aluminum
- c)Cobalt
- d)Nickel
Correct answer is option 'B'. Can you explain this answer?
Which of the following materials is considered non-magnetic?
a)
Iron
b)
Aluminum
c)
Cobalt
d)
Nickel
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Headway Institute answered |
Aluminum is a non-magnetic material, meaning it cannot be attracted to magnets. In contrast, iron, cobalt, and nickel are magnetic materials and can be attracted by magnets.
How can the strength of an electromagnet be increased?- a)By increasing the current flowing through the coil
- b)By using a weaker electric current
- c)By decreasing the number of wire turns
- d)By using a non-magnetic core
Correct answer is option 'A'. Can you explain this answer?
How can the strength of an electromagnet be increased?
a)
By increasing the current flowing through the coil
b)
By using a weaker electric current
c)
By decreasing the number of wire turns
d)
By using a non-magnetic core
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Headway Institute answered |
The strength of an electromagnet can be increased by increasing the current flowing through the coil. Additionally, increasing the number of wire turns around the core can also enhance the magnetic field strength.
What is the main characteristic of magnetic lines of force?- a)They can cross each other
- b)They are straight lines
- c)They form closed loops
- d)They extend only from the north pole
Correct answer is option 'C'. Can you explain this answer?
What is the main characteristic of magnetic lines of force?
a)
They can cross each other
b)
They are straight lines
c)
They form closed loops
d)
They extend only from the north pole
|
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Headway Institute answered |
Magnetic lines of force always form closed loops. They exit from the north pole, curve around, and re-enter at the south pole, illustrating the continuous nature of magnetic fields.
What is the primary purpose of a magnetic compass?- a)To measure the strength of a magnet
- b)To find directions
- c)To store magnetic information
- d)To create magnetic fields
Correct answer is option 'B'. Can you explain this answer?
What is the primary purpose of a magnetic compass?
a)
To measure the strength of a magnet
b)
To find directions
c)
To store magnetic information
d)
To create magnetic fields
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Headway Institute answered |
The primary purpose of a magnetic compass is to find directions. It utilizes a small magnetic needle that aligns itself with the Earth's magnetic field, indicating north-south orientation.
What is the difference between temporary magnets and permanent magnets?- a)Temporary magnets lose magnetism quickly; permanent magnets do not
- b)Temporary magnets are used in household items; permanent magnets are not
- c)Temporary magnets are made of wood; permanent magnets are made of metal
- d)Temporary magnets have stronger magnetic fields than permanent magnets
Correct answer is option 'A'. Can you explain this answer?
What is the difference between temporary magnets and permanent magnets?
a)
Temporary magnets lose magnetism quickly; permanent magnets do not
b)
Temporary magnets are used in household items; permanent magnets are not
c)
Temporary magnets are made of wood; permanent magnets are made of metal
d)
Temporary magnets have stronger magnetic fields than permanent magnets
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Headway Institute answered |
The primary difference is that temporary magnets lose their magnetism quickly when the magnetizing force is removed, while permanent magnets retain their magnetism over a longer period.
Where is the geographical north pole located in relation to the Earth's magnetic field?- a)It has no relation to the magnetic field
- b)It is the same as the magnetic north pole
- c)It is located at the center of the Earth
- d)It is near the Earth's magnetic south pole
Correct answer is option 'D'. Can you explain this answer?
Where is the geographical north pole located in relation to the Earth's magnetic field?
a)
It has no relation to the magnetic field
b)
It is the same as the magnetic north pole
c)
It is located at the center of the Earth
d)
It is near the Earth's magnetic south pole
|
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Headway Institute answered |
The geographical north pole is actually located near the Earth's magnetic south pole. This misalignment is due to the Earth's magnetic field being slightly tilted from the geographical axis.
What is the magnetic field?- a)The direction in which magnets point
- b)The strength of a magnet
- c)The force exerted by a magnet
- d)The area around a magnet where it can exert its force
Correct answer is option 'D'. Can you explain this answer?
What is the magnetic field?
a)
The direction in which magnets point
b)
The strength of a magnet
c)
The force exerted by a magnet
d)
The area around a magnet where it can exert its force
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Headway Institute answered |
The magnetic field is the region around a magnet where it can exert a force on magnetic materials. This area is invisible but can be demonstrated using iron filings or magnetic compasses.
What is the role of a soft iron strip placed across the ends of bar magnets during storage?- a)To increase the magnet's strength
- b)To serve as a demagnetizer
- c)To create a magnetic field
- d)To maintain the magnetic properties of the magnets
Correct answer is option 'D'. Can you explain this answer?
What is the role of a soft iron strip placed across the ends of bar magnets during storage?
a)
To increase the magnet's strength
b)
To serve as a demagnetizer
c)
To create a magnetic field
d)
To maintain the magnetic properties of the magnets
|
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Headway Institute answered |
A soft iron strip placed across the ends of bar magnets during storage helps maintain the magnetic properties of the magnets by providing a closed path for the magnetic lines of force, preventing rapid loss of magnetism.
Which method involves moving a bar magnet along an iron object to magnetize it?- a)Magnetic induction
- b)Single touch method
- c)Electrical method
- d)Double touch method
Correct answer is option 'B'. Can you explain this answer?
Which method involves moving a bar magnet along an iron object to magnetize it?
a)
Magnetic induction
b)
Single touch method
c)
Electrical method
d)
Double touch method
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Headway Institute answered |
The single touch method involves moving the north pole of a bar magnet along an iron object in one direction to magnetize it. This process aligns the magnetic domains within the iron, creating a magnet.
What is a characteristic feature of permanent magnets?- a)They retain their magnetism after the magnetizing force is removed
- b)They are only effective in small sizes
- c)They require continuous electrical current to maintain magnetism
- d)They lose magnetism when heated
Correct answer is option 'A'. Can you explain this answer?
What is a characteristic feature of permanent magnets?
a)
They retain their magnetism after the magnetizing force is removed
b)
They are only effective in small sizes
c)
They require continuous electrical current to maintain magnetism
d)
They lose magnetism when heated
|
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Headway Institute answered |
Permanent magnets are characterized by their ability to retain their magnetism even after the magnetizing force has been removed. This makes them useful in a variety of applications where a constant magnetic field is needed.
What is an electromagnet primarily made of?- a)A bar of steel
- b)Copper wire and a soft iron core
- c)A permanent magnet
- d)A piece of plastic
Correct answer is option 'B'. Can you explain this answer?
What is an electromagnet primarily made of?
a)
A bar of steel
b)
Copper wire and a soft iron core
c)
A permanent magnet
d)
A piece of plastic
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Headway Institute answered |
An electromagnet is primarily made by wrapping insulated copper wire around a soft iron core. When electric current flows through the wire, the iron core becomes magnetized, creating a magnetic field.
What do magnetic lines of force indicate?- a)The size of the magnet
- b)The weight of the magnet
- c)The strength and direction of a magnet's field
- d)The temperature of the magnet
Correct answer is option 'C'. Can you explain this answer?
What do magnetic lines of force indicate?
a)
The size of the magnet
b)
The weight of the magnet
c)
The strength and direction of a magnet's field
d)
The temperature of the magnet
|
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Headway Institute answered |
Magnetic lines of force represent the strength and direction of a magnet's magnetic field. The density of these lines indicates the strength of the field, with closer lines signifying a stronger magnetic force.
What happens when a magnet is broken into two pieces?- a)It loses its magnetism entirely
- b)The poles disappear
- c)Each piece becomes a magnet with both a north and south pole
- d)The pieces stick together
Correct answer is option 'C'. Can you explain this answer?
What happens when a magnet is broken into two pieces?
a)
It loses its magnetism entirely
b)
The poles disappear
c)
Each piece becomes a magnet with both a north and south pole
d)
The pieces stick together
|
|
Headway Institute answered |
When a magnet is broken, each piece retains its magnetic properties and becomes a smaller magnet with both a north pole and a south pole. This characteristic is a defining property of magnets.
Which of the following methods is used to demagnetize a magnet?- a)Heating
- b)Storing it with opposite poles together
- c)Increasing the electric current
- d)Wrapping it with copper wire
Correct answer is option 'A'. Can you explain this answer?
Which of the following methods is used to demagnetize a magnet?
a)
Heating
b)
Storing it with opposite poles together
c)
Increasing the electric current
d)
Wrapping it with copper wire
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Headway Institute answered |
Heating a magnet can demagnetize it by increasing the thermal energy and disrupting the orderly alignment of the magnetic domains, which is essential for maintaining its magnetism.
What phenomenon occurs when a magnet loses its magnetism over time?- a)Magnetization
- b)Magnetic induction
- c)Self-demagnetization
- d)Electromagnetism
Correct answer is option 'C'. Can you explain this answer?
What phenomenon occurs when a magnet loses its magnetism over time?
a)
Magnetization
b)
Magnetic induction
c)
Self-demagnetization
d)
Electromagnetism
|
|
Headway Institute answered |
Self-demagnetization refers to the gradual loss of magnetism in a magnet over time, especially if its poles are not kept properly. This process can be slowed by proper storage techniques.
What happens to the magnetic field when two like poles of magnets are brought together?- a)They attract each other
- b)They combine to form a stronger magnetic field
- c)They repel each other
- d)They neutralize each other
Correct answer is option 'C'. Can you explain this answer?
What happens to the magnetic field when two like poles of magnets are brought together?
a)
They attract each other
b)
They combine to form a stronger magnetic field
c)
They repel each other
d)
They neutralize each other
|
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Headway Institute answered |
When two like poles of magnets (e.g., two north poles) are brought together, they repel each other. This property is a fundamental characteristic of magnetic interactions.
Which of the following is a use of permanent magnets?- a)In electric motors
- b)In laboratory electromagnets
- c)In electric doorbells
- d)In credit cards for information storage
Correct answer is option 'D'. Can you explain this answer?
Which of the following is a use of permanent magnets?
a)
In electric motors
b)
In laboratory electromagnets
c)
In electric doorbells
d)
In credit cards for information storage
|
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Headway Institute answered |
Permanent magnets are widely used in credit cards to store information through magnetic strips. This technology allows for secure data storage and retrieval.
What is the term used to describe the ability of magnets to attract materials such as iron?- a)Magnetism
- b)Ferromagnetism
- c)Electromagnetism
- d)Magnetization
Correct answer is option 'A'. Can you explain this answer?
What is the term used to describe the ability of magnets to attract materials such as iron?
a)
Magnetism
b)
Ferromagnetism
c)
Electromagnetism
d)
Magnetization
|
|
Headway Institute answered |
Magnetism refers to the physical phenomenon that causes materials to be attracted to magnets, specifically ferromagnetic materials like iron, nickel, and cobalt. This property is fundamental to understanding how magnets operate in various applications.
Chapter doubts & questions for Magnetism - Physics Class 6 ICSE 2025 is part of Class 6 exam preparation. The chapters have been prepared according to the Class 6 exam syllabus. The Chapter doubts & questions, notes, tests & MCQs are made for Class 6 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests here.
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