Open App

Class 8 Exam > Class 8 Videos > Science Curiosity Class 8 - New NCERT > Density

Density Video Lecture | Science Curiosity Class 8 - New NCERT

FAQs on Density Video Lecture - Science Curiosity Class 8 - New NCERT

1. What is density and how is it calculated?

Ans.Density is a physical property of matter that is defined as the mass of an object divided by its volume. It is typically expressed in units such as grams per cubic centimeter (g/cm³) or kilograms per cubic meter (kg/m³). The formula used to calculate density is: Density = Mass/Volume.

2. How does temperature affect the density of substances?

Ans.Temperature can have a significant impact on the density of substances. Generally, as temperature increases, most substances expand, which leads to an increase in volume and a decrease in density. Conversely, when temperature decreases, substances contract, leading to a decrease in volume and an increase in density. This relationship is particularly evident in liquids and gases.

3. Why is density an important property in various scientific fields?

Ans.Density is a crucial property in various scientific fields such as chemistry, physics, and engineering, as it helps in identifying substances, understanding buoyancy, and predicting the behavior of materials under different conditions. In chemistry, for instance, density can be used to determine the concentration of solutions, while in engineering, it assists in material selection for construction and manufacturing processes.

4. Can density be used to identify unknown substances?

Ans.Yes, density can be an effective means of identifying unknown substances. Each substance has a unique density, which can be measured and compared to known values. By calculating the density of an unknown sample and comparing it to a database of densities for various materials, scientists can often identify the substance.

5. What are some common misconceptions about density?

Ans.One common misconception is that the density of an object is always the same, regardless of its size or shape. However, density is an intensive property, meaning it does not change with the amount of substance present. Another misconception is that heavier objects are always denser than lighter ones; in reality, density also depends on the material's composition and structure.

About this Video

4.81/5 Rating

Oct 14, 2025 Last updated

Related Exams

Class 8 BMAT

Video Description: Density for Class 8 2025 is part of Science Curiosity Class 8 - New NCERT preparation. The notes and questions for Density have been prepared according to the Class 8 exam syllabus. Information about Density covers all important topics for Class 8 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for Density.

Introduction of Density in English is available as part of our Science Curiosity Class 8 - New NCERT for Class 8 & Density in Hindi for Science Curiosity Class 8 - New NCERT course. Download more important topics related with notes, lectures and mock test series for Class 8 Exam by signing up for free.

Description

Video Lecture & Questions for Density Video Lecture | Science Curiosity Class 8 - New NCERT - Class 8 full syllabus preparation | Free video for Class 8 exam to prepare for Science Curiosity Class 8 - New NCERT.

Information about Density

Here you can find the meaning of Density defined & explained in the simplest way possible. Besides explaining types of Density theory, EduRev gives you an ample number of questions to practice Density tests, examples and also practice Class 8 tests.

	Science Curiosity Class 8 - New NCERT 59 videos\|236 docs\|13 tests

Science Curiosity Class 8 - New NCERT

59 videos|236 docs|13 tests

Join Course for Free

Explore Courses for Class 8 exam

Viva Questions

Density Video Lecture | Science Curiosity Class 8 - New NCERT

video lectures

MCQs

Density Video Lecture | Science Curiosity Class 8 - New NCERT

Previous Year Questions with Solutions

Semester Notes

Summary

ppt

Objective type Questions

practice quizzes

Sample Paper

Free

Important questions

pdf

shortcuts and tricks

study material

mock tests for examination

Exam

Extra Questions

past year papers

;

Study Density on the App

Students of Class 8 can study Density alongwith tests & analysis from the EduRev app, which will help them while preparing for their exam. Apart from the Density, 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 Density is prepared as per the latest Class 8 syllabus.

Education Revolution