# NCERT Solutions for Class 9 Science Chapter 10

## NCERT Solutions for Class 9 Science Chapter 10 - Gravitation

NCERT Solutions for Class 9 Science Chapter 10 are available with an option to download at Vedantu for complete exam preparation. Our Chapter 10 Gravitation Class 9 NCERT Solutions are updated as per the syllabus. In-depth knowledge about this chapter NCERT Gravitation Class 9 is vital for students to get a better grasp over this subject. We thus offer solutions for Gravitation Chapter Class 9 Questions, compiled by our subject experts. Students can also download NCERT Solution PDF for all subjects to prepare for their forthcoming exams. Register Online for Class 9 Science tuition on Vedantu.com to score more marks in your examination. Download NCERT Solution for Class 9 Maths to help you to revise complete syllabus and score more marks in your examinations.

## NCERT Solutions for Class 9 Science Chapter 10 - Gravitation

Chapter 10 Gravitation Class 9 NCERT solutions are offered to students to enhance their mastery over this crucial concept as this chapter is a significant addition to the latest CBSE curriculum. Every student should be well-versed with the law of Gravitation and how it functions to answer the questions asked and score well. Gravitation is a force that results in the phenomenon of earth, attracting everything towards it. This force of attraction is also known as gravitational pull, which results in the proper functioning of everything on this planet as well as keeping its rotation and revolution intact. Earth’s gravitation is also primarily responsible for the Moon revolving around it.

Students, with a thorough reading of this chapter, will learn about driving force that binds everything to earth. Furthermore, they will gain an insight into the characteristics of this force, responsible for the revolving motion of the moon around the earth and planets around the sun. Other prominent topics of this chapter that students of Class 9 should be well acquainted with are acceleration due to gravity, constant forces, etc.

Vedantu’s solution set compiled by subject experts consists of assistance for the Gravitation Chapter Class 9 questions included towards the end of this chapter. These standard solution sets are curated, keeping in mind the requirements of students to have access to study materials, wherein, with proper practice, they can have the maximum retention of this chapter. Our solution sets are available online without any fees or charges, thus making them easy for everyone to avail it and peruse at any time and anywhere for excellent exam preparation.

These solutions consist of an elaborate answer to every question given in the chapter and focus on the essential topics from examination viewpoint. Referencing these solutions while practising or after answering the questions can thus be of valuable help, providing a touch-up to your exam preparation. Resultantly, students can not only score high but also acquire proficiency in Science as a subject. They can also access subject-wise solutions for their respective classes for complete exam preparation.

Below given is an in-detail explanation of each question present in the Chapter 10 Science Class 9 along with suggestions on how to prepare this chapter proficiently.

### A. Class 9 Gravitation – In-text Questions

The in-text questionnaire consists of five exercises, each consisting of one or more chapter-based questions added to gauge the understanding of Gravitation as a topic.

Exercise 1

Class 9 Gravitation – Question 1

It is a fairly straightforward question and asks students to define the universal law of gravitation. This chapter 10 Science Solutions book for Class 9 is replete with accurate, to-the-point answers to questions mentioned in the NCERT textbook.

Our Std 9 Science Chapter 10 Gravitation Exercise 1 PDF allows you to get accustomed with the skill and tactics of how to frame a lengthy answer crisply and concisely while substantiating them with sufficient examples. Plus, when progressing to the next class, you will also be able to conveniently grasp the topic’s gist given in the first chapter of Class 10 Chapter 1. Accordingly, you will be able to frame proper answers to questions given in Std 10 Science Chapter 1 Gravitation Exercise.

Class 9 Gravitation – Question 2

Answering this question would require students to thoroughly understand the formulae requisite to determine the magnitude of the gravitational force between the earth and any object on it. Framing answers to these questions will not be simple enough if a student is not well versed with the essential laws of gravitation. Taking into account these laws, the answer to this question can be easily comprehended without any difficulty concerning the provided solution.

Students need to make sure that they are well acquainted with the steps and the formulas that have to be incorporated while solving this problem. However, if they stumble upon ambiguities related to the concepts and topics of this chapter, they can resort to our Chapter 10 Gravitation Class 9 NCERT Solutions. Our subject experts curate this solution sets based on the latest CBSE curriculum with an accurate explanation of this chapter’s concepts, together with an informative and self-evaluative question-answer pattern.

Exercise 2

Gravitation Chapter Class 9 – Question 1

Here, students have to explain the term ‘free fall’ by referring to the laws of gravitation. Through this question, students are made to ponder on the initial topics of this chapter that reinstate the basic concept that every object on the surface experiences a gravitational pull towards the centre. These types of questions are added to emphasise the motive of preparing a student not only for his/her upcoming exams but also for the future educational pursuits.

Students aspiring to take up Science as their subject for higher studies should start focusing on developing a clear conceptual understanding of the topics constituting this subject. Apart from rigorous practice and studying, it should be the lookout of every student that their availed study guidance is genuine, and offers them the required assistance. Providing trusted advice to students with a solution that is of the best possible quality is what we thrive for, relentlessly. Our Gravitation Chapter Class 9 solution sets are resultantly hailed apt for both elaborative study and last-minute revision.

Gravitation Chapter Class 9 – Question 2

This question in the second in-text exercise requires students to delve deep into the most crucial topic of this chapter, that is, acceleration due to gravity. The topic serves as the basis of this chapter, from which other aspects of gravity stem out. Students can look into our answer solutions uniquely curated by our subject experts and find out relevant and accurately framed solutions to these questions. It will not only help them fetch better scores in their exam but will also render them a clear perspective.

Our Chapter 10 Gravitation Class 9 NCERT solutions are structured by experienced professors keeping in mind the intricate details of every topic that each student needs to be acquainted with.

Considering that students of Standard 9 are yet in their formative years, our solution set drafted by subject experts encompasses all the nitty-gritty of relevant topic off-shoots constituting this chapter. Subsequently, you will be able to gain a reading experience that not only helps in easy grasp but also provides valuable insight that lasts long. While knowledge is enriching, our solutions improve your chances of securing better grades.

Exercise 3

Gravitation Class 9 NCERT Solutions – Question 1

In this question, students are asked to list down the differences that are evident between the mass of an object and its weight.

To answer this question in a precise and straightforward manner, the first and foremost step students should take to reach out to the first portion of this chapter and find out differences that have already been mentioned elaborately.

Next, they must attempt these questions on their own to check their understanding. Now, to check the precision of their answers, they can resort to our solutions sets with readily available and accurate answers prepared by our subject experts.

Our Chapter 10 Gravitation Class 9 NCERT Solutions are accompanied by elaborative and interactive sections meant to test the knowledge of students. The solved numerical questions are provided with diagrams and further substantiated with relevant examples.

Gravitation Class 9 NCERT Solutions – Question 2

Consecutively, the second question of this exercise also revolves around the topic of mass and weight of an object on the surface of the earth. Here, students are asked to explain the reason behind the weight of any object on the moon’s surface turning to 1/6th of its weight on earth.

Answer to this question can be chalked out from the section that explains the influence of the law of gravitation, causing a change in weight and mass of an object on the surface of moon and earth, respectively.

To ensure an accurate explanation of these answers, students can cross-refer our Gravitation Class 9 NCERT Solutions. It will help them significantly to understand topics of mass and weight of an object on the moon and the earth and clear any doubts concerning their related concepts for precise answering in the exams.

Exercise 4

Gravitation Chapter Class 9 – Question 1

The first question of in-text exercise 4 in this chapter draws out real-life instances, where gravitational pull can be easily recognised in one’s day-to-day activities. Here, students are asked to explain reasons to situations like why a thin and robust string of a school bag, when hung over the shoulder, feels extremely heavy and is difficult to carry.

All the above questions, along with this one, reinforce the concepts that serve as a basis of this chapter for improving the understanding of Gravitation for students. Our Gravitation Chapter Class 9 questions solution sets thus make sure that,

- Students are well-equipped with study resources

- Each one of the topics is covered with utmost precision and accuracy

- And, it helps them score maximum marks for the concerned question

Gravitation Chapter Class 9 – Question 2

Buoyancy is a crucial topic in this chapter Gravitation that falls under Unit III right after the chapter named Force and Laws of Motion. For students who have had a prior idea about the various types of forces and laws that drive motion, it will be easy to grasp the concept behind the topic buoyancy. Incongruity, the second question of this exercise requires students to explain the term buoyancy citing a proper example and thorough description.

Students who are not very well acquainted with the previous chapter, from which the essential concepts of this chapter have been derived, can seek guidance from our Chapter 10 Gravitation Class 9 NCERT solutions that are curated uniquely for preparing students for their exams.

With an in-depth explanation of the subject matter, it eliminates the need to be worried regarding exam preparation and helps you gain a grasp over the topic.

Gravitation Chapter Class 9 – Question 3

After buoyancy, the next important topic in this chapter is about the phenomenon of objects floating or sinking when placed on the surface of a liquid. Students are required to answer this question in a straightforward manner stating that the act of floating or submerging in water depends upon the density of the object and the liquid.

As per this topic, if the density of an object is more than that of the water, then the object will sink. However, if the density of the liquid is more than that of the given object, the latter will float on the liquid’s surface.

Secure our Chapter 10 Gravitation Class 9 NCERT solutions to get access to a study guide covering a plethora of topics. They are precisely and elaborately explained with a tabular representation of statistics, and further substantiated with examples for making them more informative and interactive among students.

Exercise 5

NCERT Gravitation Class 9 – Question 1

It is a numerical question whereby students have to determine whether one’s body weight measured on a weighing machine is accurate or whether it differs from the actual body mass.

Breaking age-old notions, our Chapter 10 Gravitation Class 9 NCERT solutions explicitly elucidate that while one weighs their body, there is an exertion of force from upside that slightly pushes the body upwards. It naturally affects the reading, and the weight recorded appears less than the original body mass.

NCERT Gravitation Class 9 – Question 2

Another numerical question, the second question in the fifth exercise of Gravitation Chapter Class 9 requires students to compute as well as determine the heavier of a bag of cotton and an iron bar, both of whose weight is recorded as 100 kg on a weighing machine.

The answer to this question needs students to recapitulate the concept of buoyant force, which shall be subtracted and added with the actual weight and weight measured, respectively. Finding the values of both at the end would assert which one of the two items is heavier.

Refer to our Gravitation Chapter Class 9 solution sets today, and lay your hands on the most preferred study guide favoured by most students. The popularity is more so because of its holistic and relevant approach to this chapter’s concepts encompassing informative content and curated details.

Gravitation Class 9 NCERT Solutions – NCERT Exercise

This section is a mixed bag of questionnaires comprising 22 questions in total. Each question is framed on diverse topics about this chapter to assess whether or not students are well-versed with the concepts.

Gravitation Class 9 NCERT Solutions – Question 1

It is a numerical-based question in which one will have to calculate and also explain how the force of gravitation changes between two objects when the distance between them is reduced to half.

Students willing to attempt such questions during examination have to acquire a thorough grasp of the concept of the universal law of gravitation. Further, they have to calculate the force acting between these objects by substituting the value of the reduced distance and compute the results.

Refer to our Gravitation Class 9 NCERT Solutions to avail step-by-step answers to such tricky questions.

Gravitation Class 9 NCERT Solutions – Question 2

Here, students have to explain why a heavy object does not fall faster than a lighter object, even though the gravitational force acts on all subjects irrespective of their masses. Answer to this question lays in the section which states that all objects fall towards the direction of the ground with a constant acceleration, and do not depend on the mass of an object.

Gravitation Class 9 NCERT Solutions – Question 3

In this question, students will be required to give an account of the earth’s magnitude adhering to the concept of law of gravitation. To answer this one, students have to focus on the basics of the idea of gravitational law and its various applications.

One will have to have a clear idea of this topic from our Chapter 10 Gravitation Class 9 NCERT Solutions. Here, the question asks students to identify the type of gravitational force acting on the object that attracts it towards the earth’s surface.

Students will have to consider the values of the mass of earth, the mass of an object and incorporate the universal gravitational constant to determine the value of F or gravitational force. This question from Chapter 10 Gravitation Class 9 NCERT solutions aids students to reflect on their basic knowledge over this chapter and solve the tricky problems in a well-thought-out manner.

Gravitation Class 9 NCERT Solutions – Question 4

The additional exercise from Class 9 Science NCERT book contains relevant questions whose answers have been curated by experts in our Chapter 10 Gravitation Class 9 NCERT Solutions. This particular question tests a student’s basic knowledge of laws of gravitation, whereby they are asked why earth attracts the moon. These questions are set to assess whether students have a firm understanding of the basics of this chapter. Referring to our solution set will make sure that your answers are well-framed, and are also convincing enough to help you obtain full marks.

Gravitation Class 9 NCERT Solutions – Question 5

The fifth question of this set requires candidates to explain as to why the moon attracts the earth while maintaining a critical balance. To answer it precisely, students need to reflect on the section of the text which elaborates that the earth and the moon experience equal gravitational force between them distinctly, but the acceleration experienced by the earth is relatively higher than the force exerted by the earth over the moon.

Hence, the earth retains its path and does not move towards the direction of the moon and vice versa. Our Chapter 10 Gravitation Class 9 NCERT solutions can be helpful in this respect as they come with elaborate answers to such crucial questions from exam viewpoint.

Gravitation Class 9 NCERT Solutions – Question 6

The sixth question of this NCERT exercise set is based on the sub-topic of motion and force of objects under the influence of the gravitational force of the earth. Students are required to determine the resultant force between two objects if the mass of one object is doubled. They also have to determine the value of the acting force when distance and mass of objects are doubled.

Gravitation Class 9 NCERT Solutions – Question 7

The seventh question of this exercise asks students to explain the crucial topic of the universal law of gravitation. As per the syllabus, these topics from NCERT books hold critical importance in a student’s curriculum, making these questions all the more crucial.

Here, students are required to explain the importance of the law of gravitation and how it influences everything around. Our Chapter 10 Gravitation Class 9 NCERT Solutions for this question can help students pen down the answer in a comprehensive manner.

Gravitation Class 9 NCERT Solutions – Question 8

Here, students are required to explain the acceleration of an object that has been dropped freely from upwards. To find out the answer of this question, students are required to recollect the first universal law of gravitation, which states that acceleration of a freely falling object is denoted by the term g, which has a constant value of 9.8 m/s2.

With our NCERT Solutions, students no longer have to approach Science with a notion of difficulty attached to it and can prepare for their upcoming exams in a well-rounded manner.

Gravitation Class 9 NCERT Solutions – Question 9

In this question, students have to focus on the topic of the force of gravity acting between earth and the object on its surface. The question requires students to determine the term ‘exerted force’, between the earth and any object.

Answers to such questions can be easily accessed from our solution sets drafted by our subject experts. Each of the answers is explained lucidly to ensure a better understanding for students.

Gravitation Class 9 NCERT Solutions – Question 10

The tenth question of this exercise requires students to recollect ways of determining the value of the weight of a body on the earth. Apart from that, the solution to this numerical requires thorough knowledge on characteristics of acceleration due to gravity thoroughly.

Solutions, in this case, have to be derived from the theories and laws that are stated in the text. Alternatively, students can avail our study materials available on our websites for free to prepare for their exams.

NCERT Solutions for Class 8 Maths Chapter 12

The exercise questions of Class 9 Science Chapter 10 test students’ knowledge on essential topics like acceleration due to gravity and the laws of motion where force is the product of mass and acceleration.

Students can secure well-rounded guidance before their exam on these topics from our Chapter 10 Gravitation Class 9 NCERT Solutions and gain an all-encompassing knowledge about this chapter content.

Answering this line of questions can render a beneficial effect on students to help them decipher the complex topics of Physics in the long run.

Gravitation Class 9 NCERT Solutions – Question 12

In this numerical question, one will have to calculate an object’s weight on the Moon and the Earth when the object weighs 10 kg. Students can easily derive answers to such complicated sums in our Chapter 10 Gravitation Class 9 NCERT Solutions to evaluate their exam preparation.

Answers to this one will be based on the concept of rate of acceleration due to gravity; students are required to have a clear concept of this topic from their NCERT books PDF.

Here, the question asks students to identify an object’s weight by multiplying the mass with acceleration. After that, students have to determine the weight of a 10-kg object on the Earth and also the weight of that object on the Moon.

Students, to gain a comprehensive understanding of the above-mentioned sum, can refer to our study materials and appear for their upcoming exams without welling upon any vagueness of concept.

Gravitation Class 9 NCERT Solutions – Question 13

Question 13 of this particular exercise on the sub-topic of the equation of motion under gravity is one of the most preferred questions for examinations. These questions require students to study and understand this chapter from their CBSE NCERT books to formulate proper answers to the questions and compute the sums accordingly.

This question tests a student’s basic knowledge of the chapter by asking them to identify the initial velocity, final velocity, height achieved and the acceleration occurring due to gravity on that object when it is thrown vertically upwards with a velocity of 49m/s.

Gravitation Class 9 NCERT Solutions – Question 14

Here’s another tricky question which asks students to determine the final velocity of stone just before hitting the ground after being thrown from a height.

The Gravitation Class 9 NCERT Solutions PDF provided by our subject experts, trains you on how to solve these questions while avoiding silly mistakes during the calculation of the equation of the motion.

Gravitation Class 9 NCERT Solutions – Question 15

This question from Chapter 10 Gravitation Class 9 NCERT solutions aids students to encapsulate their understanding of topics such as displacement and distance, covered by a stone made to fall from a height.

Gravitation Class 9 NCERT Solutions – Question 16

While answering this question, a student is required to ponder over the basic concept of the force of gravitation that acts between everything on Earth and the planet itself. Here, in this question, students have to determine the exact force of gravitation between the Earth and the Sun, where both their masses and the average distance between them are pre-informed.

This exercise of Class 9 Science Chapter 10 tests a student’s knowledge of critical topics – displacement motion and laws of gravitation. Students can gauge their preparation of these topics from Science Chapter 10 by looking up the answers provided in our Gravitation Class 9 NCERT PDF book.

Gravitation Class 9 NCERT Solutions – Question 17

Here, students are required to calculate the point where two free-falling stones will supposedly meet after they are thrown from a tower 100-m high at a 25m/s velocity. To answer this question, students have to have a clear idea about the displacement motion and how it contributes to deciding the direction of a free-falling body.

Our Chapter 10 Gravitation Class 9 NCERT solutions will be an ideal study guide for you this exam season. Lookup for answers to these tricky questions drafted by our professionals and improve your problem-solving skills.

Gravitation Class 9 NCERT Solutions – Question 18

Question 18 is all about computing the velocity, maximum height and the position of the ball after a specific time when it is thrown upwards. The answer to this question would require students to carefully refer to the information provided on the ball and substitute those values to the equation of motion.

Students may get confused when they have to encounter such questions in the examination hall. Prior knowledge of the shortcut techniques to tackle these questions efficiently is vital for students.

These sums are generally time-consuming and would require precision from the student’s end. Our Chapter 10 Gravitation Class 9 NCERT solutions are drafted with answers to ace such tricky questions with ease.

Gravitation Class 9 NCERT Solutions – Question 19

Question 19 focuses on the concept of buoyant force and Archimedes’ principle. Depending on this theory, students have to determine the direction a buoyant force is exerted on an object immersed in water. Explaining the concept would require students to delve on the idea of buoyant force and the components that affect its course of action.

The CBSE curriculum board has put its best foot forward while setting up the subject content list for students of all classes. Similarly, in class 9 Science book, the inclusion of this chapter Gravitation is meant for inculcating the fundamental ideas and rudiments of the topic among students.

Apart from strengthening the theoretical base, the section is furnished with an in-text question list for asserting how far students are thorough with their exam preparation on this chapter.

However, students can access our readily available study solutions on these question sets by just downloading our Gravitation Class 10 Question and Answer PDF available on our website free of cost.

Gravitation Class 9 NCERT Solutions – Question 20

Question 20 of this exercise requires a student to explain why a block of plastic when thrust inside the water comes up and floats over the water surface. Students, to answer this question methodically, have to recapitulate the crucial pointers like Archimedes’ Principle mentioned in this chapter Gravitation.

However, they can also cross-refer to our Chapter 10 Gravitation Class 9 NCERT Solutions where answers to these questions are framed with step-by-step elucidation by our subject experts. We have also incorporated short-cut techniques for the enhanced learning experience of students, thereby fetching better score and boosting their overall aggregate.

Gravitation Class 9 NCERT Solutions – Question 21

The line of questioning is framed to evaluate a student’s understanding of the concept of gravitational pull, which stands essential in cementing their hold over the topics added in this chapter.

Like, in question number 21, students have to mention whether an object whose volume and mass is 20cm3 and 50 gm respectively should float or sink in water with a density of 1g cm3.

Gravitation as a chapter is invariably added to the CBSE curriculum because a sound knowledge about this topic is essential for students who are aspiring to pursue Science for their higher studies.

Securing trusted assistance is thus imperative for students who are genuinely thriving to gain comprehensive knowledge on this chapter apart from achieving good grades in their examination.

Our Chapter 10 Gravitation Class 9 NCERT Solutions stand out among many because of their holistic approach towards this chapter concept to help develop a firm grasp of students over the topic. We leave no stone unturned when it comes to delivering standard solution sets for a student, which they can cross-refer to gain a clear notion about this chapter concept.

Gravitation Class 9 NCERT Solutions – Question 22

In question number 22 of this exercise, a student is asked to state whether a sealed packet of 500 gm with a volume of 350 cm3 will float or sink in water. This question is further tagged along with a numerical question where students have to determine the mass of water displaced by the package when it is dropped in water.

Answers to the above questions can be solved by calculating the packet’s density by dividing its mass with its volume. Students can refer to our Chapter 10 Gravitation Class 9** NCERT Solutions**** **to receive a wholesome guide for the questions requisite and clear out their doubts over the crucial concepts given in this chapter.

You can also Download **Maths NCERT Solutions Class 9** to help you to revise complete Syllabus and score more marks in your examinations.

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At Vedantu, we offer online study material for all subjects for students to help them increase their overall score in their forthcoming exams. As our Chapter 10 Gravitation Class 9 NCERT Solutions are penned down by our subject experts, they render an in-depth insight into this chapter concept, helping them develop their perspective. Students can easily lay their hands on our subject and chapter-specific study materials, as our solution set comes with a free download option.

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