Class 9 Exam > Class 9 Videos > Fun Video: What is Matter?
Fun Video: What is Matter? Video Lecture - Class 9
FAQs on Fun Video: What is Matter? Video Lecture - Class 9
| 1. What is matter and its characteristics? |  |
Ans. Matter is anything that has mass and occupies space. Characteristics of matter are that it can exist in three states, i.e., solid, liquid, and gas. It has volume and mass, and it is made up of particles that are constantly in motion.
| 2. What is the difference between mass and weight? | |
Ans. Mass is the amount of matter present in an object, and weight is the force exerted by gravity on an object. Mass is constant, while weight varies depending on the gravitational force acting on the object.
| 3. What are the different types of matter? | |
Ans. Matter can be classified into two types: pure substances and mixtures. Pure substances can be further divided into elements and compounds. Mixtures can be divided into homogeneous and heterogeneous mixtures.
| 4. What is the law of conservation of mass? | |
Ans. The law of conservation of mass states that matter can neither be created nor destroyed, only transformed from one form to another. The total mass of the system remains constant before and after any physical or chemical change.
| 5. What is the kinetic theory of matter? | |
Ans. The kinetic theory of matter explains the behavior of matter in terms of the motion of its particles. It states that all matter is made up of tiny particles that are in constant motion. The temperature of matter is related to the motion of its particles, and the higher the temperature, the faster the particles move.
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Nov 24, 2024 Last updated |
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