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Matter — Flashcards

ICSE · Class 8 · Physics

34 flashcards for Matter (ICSE Class 8 Physics) to test yourself on key terms and facts. Sample: "State the definition of matter."

45 questions34 flashcards2 formulas & key relations5 concepts

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A cyclical diagram illustrating the interconversion between solid, liquid, and gas states, showing the processes of melting, boiling/vaporization, condensation, freezing, sublimation, and deposition,
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34 Flashcards·
Definition of matterEarly idea of matterMoleculeSize of moleculeCohesionAdhesionInter-molecular forceFlow of liquids
Card 1Definition of matter

State the definition of matter.

Answer

Matter is something which occupies space, has mass and can be perceived by our senses. Examples include air, water, iron, hydrogen, oxygen, milk, oil, sugar, and salt.

Card 2Early idea of matter

Who was Maharishi Kanada, and what idea did he give about matter?

Answer

Maharishi Kanada was an ancient Indian philosopher who considered matter to be made up of tiny particles called anu.

Card 3Molecule

What is a molecule?

Answer

A molecule can exist free in nature and it has all the properties of that substance. A molecule is the basic unit of matter.

Card 4Size of molecule

How big is a molecule?

Answer

A molecule is of size nearly 10^-10 metre. It is too small to be seen even with a microscope.

Card 5Cohesion

What is the force of cohesion?

Answer

The force of attraction between molecules of the same substance is called force of cohesion.

Card 6Adhesion

What is the force of adhesion?

Answer

The force of attraction between molecules of two different substances is called force of adhesion.

Card 7Inter-molecular force

A substance has molecules separated by more than 10^-9 metre. What happens to the inter-molecular force?

Answer

The inter-molecular force becomes ineffective beyond a separation of 10^-9 metre and vanishes.

Card 8Flow of liquids

Why are liquids able to flow?

Answer

Liquids can flow because the molecular forces of attraction in them are weaker than in solids, so the molecules can move within the boundary of the vessel.

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Frequently Asked Questions

What are the important topics in Matter for ICSE Class 8 Physics?
Key topics in Matter include Matter, Molecules, and Molecular Behavior, Three States of Matter, Change of State, Melting and Freezing. Study these first, then practise questions on each for Class 8 exams.
How many flashcards are available for Matter?
There are 34 flashcards for Matter covering key definitions, facts and ideas. A few sample cards are shown on this page.
How should I revise Matter for Class 8 exams?
Learn the core ideas first, then work through the 45 practice questions on Matter. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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