NCERT Solutions for Class 9 Science Chapter 10: In Chapter 8 and Chapter 9, we learned about force and its effects on bodies. We know that a sufficient amount of force is needed to move a body from one point to another. Gravitation is one such force that acts between all the bodies in the universe. The Gravitational force keeps us attached to the surface of the earth. We have provided NCERT Solutions of Class 9 Science Chapter 10 – Gravitation on this page. NCERT Solutions for Class 9 Science Chapter 10 covers all the main concepts related to the chapter i.e. Gravitation. Here we have provided detailed answers and explanations to enable you to understand the concepts clearly.
In this chapter, you will learn all the concepts related to gravitation – from the structure and functionality of our Solar System to the falling of the bodies. Students must explore this article on NCERT Solutions for Class 9 Science Chapter 10 – Gravitation to grab complete knowledge of the topic. To make the learning process fun and easy, we have provided detailed NCERT Solutions for the chapter. All the content provided here is designed strictly as per the latest syllabus as prescribed by the Central Board of Secondary Education. You can even download the NCERT Solutions For Class 9 Science Chapter 10 in PDF format through direct links facilitated in the below section of this page.
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PRACTICE IMPORTANT QUESTIONS FROM CLASS 9 SCIENCE CHAPTER 10
NCERT Solutions For Class 9 Science Chapter 10: Gravitation
Class 9 Science Chapter 10 sheds light on all concepts related to gravitation along with the calculation of mass and weight in different scenarios. Before getting into the details of CBSE NCERT solutions for Class 9 Science Chapter 10, let’s have a look at the topics included in this chapter:
| Section | Topic Name |
| 10.1 | Gravitation |
| 10.2 | Free Fall |
| 10.3 | Mass |
| 10.4 | Weight |
| 10.5 | Thrust and Pressure |
Along with NCERT Class 9 Solutions Science, students are also advised to check the following important links regarding CBSE Class 9 Syllabus for English, Mathematics, Science, Social Studies, etc. and explore vital NCERT Class 9 Books for main subjects. It will surely help them understand the Class 9th Curriculum properly and pretty good idea about the syllabus to be covered for regular examinations.
NCERT Solutions For Class 9 Science Chapter 10: Solved Exercises & In-Text-Questions
Here you will be able to find the solutions to intext and exercise questions for NCERT Science Chapter 10 Class 9 questions. You can also download the solutions for CBSE Class 9 Science Ch 10 as a PDF to practice offline. The detailed solutions to NCERT Class 9 Science Questions have been provided directly after each question.
DOWNLOAD CLASS 9 SCIENCE CHAPTER 10 SOLUTIONS PDF
Download NCERT Solutions for Class 9 Science for other chapters also: In addition to NCERT Science Solutions for Class 9 Chapter 10, you can also check out the detailed NCERT Solutions for other important chapters also. Explore the links facilitated below and get NCERT Solutions for Class 9 Science for chapters like Matter in Our Surroundings, Is Matter Around Us Pure, Structure of Atom, Motion, Sound, Natural Resources and others.
- Chapter 1: Matter in Our Surroundings
- Chapter 2: Is Matter Around Us Pure?
- Chapter 3: Atoms and Molecules
- Chapter 4: Structure of The Atom
- Chapter 5: The Fundamental Unit of Life
- Chapter 6: Tissues
- Chapter 7: Diversity in Living Organisms
- Chapter 8: Motion
- Chapter 9: Force and Laws of Motion
- Chapter 11: Work and Energy
- Chapter 12: Sound
- Chapter 13: Why Do We Fall Ill
- Chapter 14: Natural Resources
- Chapter 15: Improvement in Food Resources
CBSE NCERT Solutions For Class 9 Science Chapter 10: Chapter Description
In this chapter, you will learn about Gravitation and the Universal Law of Gravitation. First, the concept of Gravitation will be discussed. This will be followed by a discussion on the Universal Law of Gravitation and its importance along with mathematical equations. Later, the concepts of free fall, calculation of the value of g, motion of objects under the influence of the gravitational force of the earth will be discussed.
You will also get to know the differences between mass and weight, how to calculate the weight of an object on the Moon. The concepts of Thrust and Pressure will also be discussed. This chapter consists of a lot of numerical problems that must be understood and practised diligently.
Listed below are some of the major concepts you will learn in CBSE NCERT Class 9 Science Chapter 10:
- Universal Law of Gravitation and its Importance
- Characteristics of Gravitational Forces
- Concept of Free Fall
- Difference between Gravitation Constant and Gravitational Acceleration
How to Prepare For Class 9 Chapter 10 Gravitation?
The chapter is 60% numerical and 40% theory. Stick to your NCERT textbook for definitions and theorems, solve intext and exercise questions once you have completed a particular topic. Use the NCERT solutions provided by Embibe as a reference guide. Solve an ample amount of numerical problems. Learn the value of “g” for various scenarios, the most common being the value on Earth and Moon. You can also check the important questions below to take your preparation one step further.
Salient Features of NCERT Solutions for Class 9 Science Chapter 10 – Gravitation
- Easy to understand solutions to every question in the NCERT Class 9 Science Book
- Students will be learning under the supervision of qualified and experienced teachers
- All the questions provided in this article are as per the latest syllabus prescribed by CBSE Board
- Special attention given to exam-oriented questions
- Some additional learning resources are also provided such as sample papers and previous year question papers
Important Questions For Class 9 Science Chapter 10
Here we have provided you with some questions from the chapter that are important from the examination point of view:
| 1 and 2 Mark Questions Q1. What is the acceleration of free fall? Q2. What is the SI unit of Pressure and Relative Density? Q3. What is the magnitude of the gravitational force between the earth and a 1 kg object on its surface? Q4. Gravitational force on the surface of the moon is only 1/6 as strong as gravitational force on the earth. What is the weight in newton’s of a 10 kg object on the moon and on the earth? |
| 3 Mark Questions Q1. Write the formula to find the magnitude of the gravitational force between the earth and an object on the surface of the earth. Q2. What are the differences between the mass of an object and its weight? Q3. Why does an object float or sink when placed on the surface of water? Q4. What is the importance of universal law of gravitation? |
| 5 Mark Questions Q1. A stone is allowed to fall from the top of a tower 100 m high and at the same time another stone is projected vertically upwards from the ground with a velocity of 25 m/s. Calculate when and where the two stones will meet Q2. The Olympic high jump record is 2.45m held by Cuba let acceleration due to gravity on earth was -1m/s^2 and not -10m/s^2 . Calculate the height to which the jumper would have jumped? Q3. State the factors on which acceleration due to gravity (g) depends? Q4. The radius of earth is 6370 Km and of mars is 3400 Km. If an object weighs 200 N or earth, what will be its weight on mars. The mass of mars is 0.11 that of earth. |
FAQs Related To Class 9 Science Chapter 10 Solutions
Here we have provided some of the frequently asked questions related to this NCERT Solutions for Class 9 Science Chapter 10 Gravitation Exercise:
Q1: Write the formula to find the magnitude of the gravitational force between the earth and an object on the surface of the earth.
A: Consider F is the force of attraction between an object on the surface of earth and earth.
Also, consider ‘m’ is the mass of the object on the surface of the earth and ‘ Me’ is the mass of earth.
∴ The formula for the magnitude of the gravitational force between the earth and an object on the surface is given as:
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Q2: State the universal law of gravitation.
A: The universal law of gravitation states that every object in the universe attracts every other object with a force called gravitational force. The force acting between two objects is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centres.
Q3: What do you mean by acceleration Q due to gravity?
A: When an object falls freely from a certain height towards the earth’s surface, its velocity changes. This velocity change produces acceleration in the object known as acceleration due to gravity, represented by the letter g.
The gravity-based acceleration value is,
g=9.8ms-2
Q4: What are the differences between the mass of an object and its weight?
A: The differences between the mass of an object and its weight are tabulated below:
Q5: Why is the weight of an object on the moon 1/6th its weight on the earth?
A: The moon’s mass is 1/100 times and 1/4 times the earth’s radius. As a result, when compared to earth, the gravitational attraction on the moon is about one-sixth. Thus, an object’s weight on the moon is 1/6th its earth weight.
Q6: What do you mean by buoyancy?
A: The upward force possessed by a liquid on an object that’s immersed in it is referred to as buoyancy.
Q7: You have a bag of cotton and an iron bar, each indicating a mass of 100 kg when measured on a weighing machine. In reality, one is heavier than other. Can you say which one is heavier and why?
A: The bag of cotton is heavier than the bar of iron. The cotton bag has a larger air thrust than the iron bar. The weighing machine, therefore, indicates a smaller cotton bag weight than its actual weight.
Q8: How do the NCERT Solutions for Class 9 Science Chapter 10 help students to learn the key features of gravitational force?
A: Gravitation is considered one of the most important chapters of Science in Class 9th as it has a significant role to play in further higher studies related to the Science stream. If a student pays attention to NCERT Solutions for Class 9 Science Chapter 10, then he/she will surely learn all the important concepts involved in the chapter. Just try to focus more during the classroom studies and understand the concepts while the teacher is explaining.
Now you have everything for your preparation. You can also practice more Gravitation practice questions on Embibe. NCERT Solutions for Class 9 Science Chapter 10 Extra Questions are available for free and will help you in your upcoming exam preparation.
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