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# SELINA Solutions for Class 9 Physics ICSE

Strengthen your basics of important Science topics with TopperLearning’s Selina Solutions for ICSE Class 9 Physics. In Class 9, you will dive into topics like measurement, heat, magnetism, motion, light and more. These topics will be discussed in detail in Class 10, Class 11 and Class 12. The chapter solutions will ensure that you have a better grasp of the basics to be able to understand the topics and perform well in your academic journey.

Selina textbook solutions are also useful if you are keen on participating in Science Olympiads. These inter-school events usually have topics based on the school curriculum. Your knowledge of Physics will be useful - not only in excelling at school level, but also at national and international Science-based events.

## Selina Solutions for Class 9 Physics

Chapter 1 – Measurement and Experimentation

This chapter encompasses the fundamental units in Physics like measurement and experimentation. It discusses the international measurement units at length such as CGS and FPS. This chapter also focuses on time, simple pendulum and various numericals.

Chapter 2 – Motion in One Dimension

After covering measurement and units of measurement in the previous chapter, motion discusses distance, displacement, velocity, and scalar and vector quantities. It also explains the equations and numericals which entail the topic.

Chapter 3 – Laws of Motion

After explaining in detail the concept of motion, the third chapter explains the laws of motion in detail and then moves on to the various physical quantities and their respective roles in motion. This chapter also focuses on force and objects. The three famous laws of motion by Newton are explained in detail. The laws are followed by exercises which explain the application of each law.

Chapter 4 – Pressure in Fluids and Atmospheric Pressure

This chapter explains thrust and pressure and the correlation between each concept. Additionally, the chapter talks about atmospheric pressure in fluids and the transmission of pressure in fluids through Pascal’s law. It also explains how to measure pressure via the simple barometer, Fortin’s barometer and aneroid barometer.

Chapter 5 – Upthrust in Fluids, Archimedes’ Principle and Flotation

This chapter explains the rules of upthrust in fluids and concepts around it. The upthrust is also called buoyant force and is illustrated through sufficient examples. The other two important topics are Archimedes’ principle and principle of flotation which are covered through various application-based examples.

Chapter 6 – Heat and Energy

Heat is energy, whereas temperature is a quantity. The chapter Heat and Energy explains the various concepts that revolve around heat. This includes the definition, example and other units. This chapter also focuses on the various types of energy and their sources.

Chapter 7 – Reflection of Light

This chapter discusses how laws of reflection and images are formed by a plane mirror. It also discusses the formation of images through spherical mirrors and other pairs of mirrors. When light falls on an object, it sends the rays back, thus reflecting the light that fell on the surface of the object.

Chapter 8 – Propagation of Sound Waves

Sound is a form of energy, and this energy produces sensation in our ears. The chapter Propagation of Sound Waves includes production and propagation of sound waves, infrasonic, sonic and ultrasonic frequencies. Through various concepts and applications, this chapter sheds light on how this energy is carried by waves.

Chapter 9 – Current Electricity

This chapter talks about electricity and its sources. It also covers sources of direct current and the symbols that are used in circuit diagrams. It talks about topics such as efficient uses of energy and the various aspects of electricity including potential difference and resistance.

Chapter 10 – Magnetism

The chapter Magnetism introduces students to the properties of magnets. This chapter also explores natural and artificial magnets. It then dives deep into the topic and talks about the magnetic field of the Earth, induced magnetism, magnetic field lines, neutral points etc.

## Why should you select TopperLearning study material?

Selina Solutions by TopperLearning cover answers for all the ICSE Class 9 Physics textbook exercises. If you happen to hit a roadblock while solving any question from the textbook,  you can easily refer to our solved textbook Solutions. These solutions are in line with the latest Class 9 ICSE syllabus, and are prepared by our in-house experts who have extensive knowledge of Physics.

Apart from textbook solutions, the Physics study materials at TopperLearning are available in various formats to support your study and revision – including long and concise notes, objective questions, videos and most important questions. Also, our revision notes can help you in clearing concepts and also self-assessing your progress on a regular basis.

1.      Where can I locate the answers on barometer in Physics?
For answers on barometer, you should look at the Selina solutions for ICSE Class 9 Physics Chapter 4 Pressure in Fluids and Atmospheric Pressure.

2.      Which chapter can help me understand the circuit diagram?
Chapter 9 Current Electricity covers solutions on construction of circuit diagrams.

3.      How do I learn about vector and scalar quantities?
Practise the textbook solutions for Chapter 2 Motion in One Dimension to study lessons on vector and scalar quantities.

## ICSE Class 9 Physics Frequently Asked Questions

For answers on barometer, you should look at the Selina solutions for ICSE Class 9 Physics Chapter 4 Pressure in Fluids and Atmospheric Pressure.

Chapter 9 Current Electricity covers solutions on construction of circuit diagrams.

Practise the textbook solutions for Chapter 2 Motion in One Dimension to study lessons on vector and scalar quantities.