Class 9 Exam > Class 9 Videos > Crash Course for Class 9 (English) > Matter in Our Surroundings- 1
Matter in Our Surroundings- 1 Video Lecture | Crash Course for Class 9 (English)
FAQs on Matter in Our Surroundings- 1 Video Lecture - Crash Course for Class 9 (English)
| 1. What is matter and why is it important? |  |
Ans. Matter refers to anything that has mass and occupies space. It can exist in three states - solid, liquid, and gas. Matter is important because it is the building block of everything around us. All objects, substances, and materials are composed of matter.
| 2. What are the different properties of matter? | |
Ans. Matter has several properties that help us identify and classify different substances. Some common properties of matter include mass, volume, density, solubility, conductivity, and melting/boiling points. These properties can be used to differentiate between different types of matter and understand their behavior.
| 3. How does matter change its state? | |
Ans. Matter can change its state by gaining or losing energy. When matter gains energy, its particles move faster, and it changes from a solid to a liquid (melting) or from a liquid to a gas (evaporation). When matter loses energy, its particles slow down, and it changes from a gas to a liquid (condensation) or from a liquid to a solid (freezing).
| 4. What is the difference between a physical change and a chemical change in matter? | |
Ans. A physical change in matter refers to a change in its physical properties, such as shape, size, or state, without altering its chemical composition. Examples of physical changes include melting ice, boiling water, or crushing a can. On the other hand, a chemical change in matter involves a transformation at the molecular level, resulting in the formation of new substances with different chemical properties. Examples of chemical changes include burning wood, rusting of iron, or digestion of food.
| 5. Why do substances have different boiling points? | |
Ans. The boiling point of a substance depends on the strength of the forces of attraction between its particles. Substances with strong intermolecular forces require more energy to break these forces and reach the boiling point. Therefore, they have higher boiling points. On the other hand, substances with weak intermolecular forces have lower boiling points. The boiling point can also be influenced by factors such as pressure, altitude, and impurities in the substance.
Related Exams
About this Video
|
4.66/5 Rating |
|
Dec 23, 2024 Last updated |
Video Description: Matter in Our Surroundings- 1 for Class 9 2024 is part of Crash Course for Class 9 (English) preparation.
The notes and questions for Matter in Our Surroundings- 1 have been prepared according to the Class 9 exam syllabus.
Information about Matter in Our Surroundings- 1 covers all important topics for Class 9 2024 Exam.
Find important definitions, questions, notes, meanings, examples, exercises and tests below for Matter in Our Surroundings- 1.
Introduction of Matter in Our Surroundings- 1 in English is available as part of our Crash Course for Class 9 (English) for Class 9 & Matter in Our Surroundings- 1 in
Hindi for Crash Course for Class 9 (English) course. Download more important topics related with notes, lectures and mock test series for
Class 9 Exam by signing up for free.
Description
Video Lecture & Questions for Matter in Our Surroundings- 1 Video Lecture | Crash Course for Class 9 (English) - Class 9 full syllabus preparation | Free video for Class 9 exam to prepare for Crash Course for Class 9 (English).
Information about Matter in Our Surroundings- 1
Here you can find the meaning of Matter in Our Surroundings- 1 defined & explained in the simplest way possible.
Besides explaining types of Matter in Our Surroundings- 1 theory, EduRev gives you an ample number of questions to practice Matter in Our Surroundings- 1 tests,
examples and also practice Class 9 tests.
|
Explore Courses for Class 9 exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
Related Searches
shortcuts and tricks
,mock tests for examination
,MCQs
,practice quizzes
,Important questions
,Sample Paper
,Viva Questions
,Extra Questions
,video lectures
,Objective type Questions
,Matter in Our Surroundings- 1 Video Lecture | Crash Course for Class 9 (English)
,past year papers
,Semester Notes
,Matter in Our Surroundings- 1 Video Lecture | Crash Course for Class 9 (English)
,Previous Year Questions with Solutions
,ppt
,Matter in Our Surroundings- 1 Video Lecture | Crash Course for Class 9 (English)
,Summary
,Exam
,Free
,study material
;
Study Matter in Our Surroundings- 1 on the App
Students of Class 9 can study Matter in Our Surroundings- 1 alongwith tests & analysis from the EduRev app,
which will help them while preparing for their exam. Apart from the Matter in Our Surroundings- 1,
students can also utilize the EduRev App for other study materials such as previous year question papers, syllabus, important questions, etc.
The EduRev App will make your learning easier as you can access it from anywhere you want.
The content of Matter in Our Surroundings- 1 is prepared as per the latest Class 9 syllabus.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup