Magnetism MCQ Class 8

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Magnetism MCQ Class 8. We covered all the Magnetism MCQ Class 8 in this post for free so that you can practice well for the exam.

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MCQ on Magnetism for School Students

Every molecule of a magnetic substance behaves as a :

1. Tiny magnet

2. Elementary magnet

3. Molecular magnet

4. All of these

Option 4 – All of these

Molecular theory of magnetism is proposed by

1. Weber

2. Coulomb

3. Ewing

4. Oersted

Option 3 – Ewing

The limit of magnetisation of a substance is called :

1. Magnetisation

2. Magnetic saturation

3. Magnetic unsaturation

4. None of these

Option 2 – Magnetic saturation

The substance in which the parallel alignment of molecular magnets produced during magnetisation remains permanent, is

1. soft iron

2. steel

3. brass

4. copper

Option 2 – steel

Steel is used to make :

1. temporary magnets

2. electromagnets

3. permanent magnets

4. None of these

Option 3 – permanent magnets

The substance in which the alignment of molecules during magnetisation is disturbed easily, is :

1. soft iron

2. steel

3. brass

4. copper

Option 1 – soft iron

Soft- iron is used to make :

1. permanent magnet

2. electro magnet

3. temporary magnet

4. 2 and 3

Option 4 – 2 and 3

Two poles of a magnet have :

1. equal strength

2. unequal strength

3. strength of N- pole is twice that of S- pole

4. None of these

Option 1 – equal strength

A magnet is also called :

1. magnetic dipole

2. magnetic mono pole

3. magnetic tripole

4. None of these

Option 1 – magnetic dipole

Magnetism of a magnet can be destroyed by :

1. tapping

2. hammering

3. heating

4. all of these

Option 4 – all of these

The substances which are repelled by a strong magnet, are :

1. bismuth

2. copper

3. cobalt

4. 1 and 2

Option 4 – 1 and 2

The N and S poles of a magnet are the points in a magnet where :

1. N and S poles of the molecular magnets are left free

2. N and S poles of the molecular magnets are coupled

3. N and S poles of the molecular magnets are left uncoupled

4. 1 and 3

Option 4 – 1 and 3

The ability of a pole of a magnet to attract or repel another magnetic pole is called its :

1. Pole capacity

2. Pole strength

3. Pole force

4. All of these

Option 2 – Pole strength

The pole strengths of two poles of a magnet are

1. equal

2. unequal

3. pole strength of N is twice than that of S

4. None of these

Option 1 – equal

The Inverse Square law of Coulomb assumes

1. isolated magnetic poles

2. hypothetical isolated magnetic poles

3. both of these

4. none of these

Option 2 – hypothetical isolated magnetic poles

We covered all the magnetism MCQ class 8 above in this post for free so that you can practice well for the exam.

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