Selina Concise Physics Class 9 ICSE Solutions for Chapter 1 - Measurements and Experimentation

• All the practice problems are solved for both Class 9 & Class 10 students.

• Chapter-wise, various conceptual questions are solved.

• Lots of physical examples are solved in each chapter with detailed explanations.

• The pictorial presentation of concepts is easy to understand at par with other competitive books available in the market.

• The content is very rich and exhaustive for Selina Physics, making it one of the best Physical Science books ever written by any publisher in India.

• Detailed coverage of topics like Gravitation, Special Relativity, Gravitational Waves is undertaken in this book unlike other books by publishers who do not cover these topics extensively.

• Complementary inputs for competitive exams like JEE, IIT-JEE, NDA, CDS are also included in this book.

• A special section of Mensuration is also included for 9th standard students.

• This book also includes tests on some topics which are not covered by other books. These help the students to gain some more exposure to some concepts which are left out by other publishers.

• A special Track on Mathematics is included followed by a detailed solution to all questions asked in previous years’ ICSE exam papers of Physics.

About the Chapter

The first chapter of this book is dedicated to Measurements and Experiments. The world is wonderfully diverse in its multitude of variables that govern all aspects of life. What is the measure of distance? And time? How do we use these measurements in our lives? Measuring an object in terms of length or height may be difficult to comprehend when the particular object has no frame of reference with which to compare it. A ruler can be used only if there is something with which to compare it. And a meter stick can be used if there is something with which to measure it. In the same way, calculations of distance, time, and mass would become much easier if we had a reference object with which to compare them.

Types of Measurements

In the first chapter of the book, "Measurements and Experiments", we learn about two types of measurement- The relative and the absolute. Relative measurements consider a difference between two quantities instead of a direct comparison. How much taller is an adult over a child? And how much heavier or lighter is an animal than another? Absolute measurements simply compare two objects to each other without any consideration about their relation. How much is the length and the height of a table? The distance between two points can be measured in terms of their length and their area.

Types of Experiments

However, to measure them we need a unit of measurement that we call, "Distance". How much is the distance between London and New York? In this chapter also, there are two types of experiments- Inertial Experiment and Non-Inertial Experiment. Inertial Experiment uses objects that have weight or mass. The non-Inertial experiment uses objects that move without any weight or mass. So, both the experiments are the same. But the only difference between both is that the Non-Inertial Experiment is applied to the 'Free' system and the Inertial Experiment is applied to the 'Bound' system.

You can find the whole solution for this chapter.

Chapter Coverage

This chapter then goes into actual measurements and experimentation teaching you how to measure distance by using a ruler and drawing an invisible line. This chapter also teaches you how to calculate volume based on the length of pipe and Diameter. The last section in this chapter is about the power of electricity; it teaches you about amperage (amps) such as what they mean, why they are important, types of circuits/electrical systems like AC & DC circuits, etc.

Just study thoroughly and you will easily ace your exams!

Conclusion

Updated ICSE Class 9 Physics Chapter 1 - Measurements and Experimentation Selina Solutions are provided by Vedantu in a step by step method. Selina is the most famous publisher of ICSE textbooks. Studying these solutions by Selina Concise Physics Class 9 Solutions which are explained and solved by our subject matter experts will help you in preparing for ICSE exams. Concise Physics Class 9 ICSE Solutions can be easily downloaded in the given PDF format. These solutions for Class 9 ICSE will help you to score good marks in ICSE Exams.

The updated solutions for Selina textbooks are created in accordance with the latest syllabus. These are provided by Vedantu in a chapter-wise manner to help the students get a thorough knowledge of all the fundamentals.