(b) What is the usual value of the acceleration due to gravity of earth ? CLICK HERE to watch second part This set of questions contains all the possible concepts which could be asked in the examination Gravitation and Universal Law of Gravitation Q.1 What is Gravitation force? Question #6-1 Paper 2 Difficulty: Medium A steel ball is moving in a horizontal circle with a radius of 0.5 m as shown in the diagram below. Media What will be the changes in the weight of the body? AIIMS Previous Year Papers; NEET Previous Year Papers; Leaderboard; NCERT Ebook; Schedule ; NEET Syllabus. | question_answer9) Earth is continuously pulling the moon towards its centre, still it does not fall to the earth. Statement: According to universal law of gravitational: Every body in the universe attract every other body with a force which is directly proportional to the product of their masses and inversely proportional to the square of the distance between them. But bodies on the surface of earth never move towards each other on account of this force of attraction. A collection of Higher Level Paper 1 and Paper 2 exam-style questions with solutions that cover all topics from the IB Physcis syllabus. The weight of a body is less inside the earth than on the surface. If the distance between two masses is increased by a factor of 5, by what factor would the mass of one of them have to be altered to maintain the same gravitational force ? question_answer80) The radii of two planets are R and \[2R\] respectively and their densities \[\rho \] and \[\rho /2\]respectively. According to Newton's law of gravitation, the apple and the earth experience equal and opposite forces due to gravitation. Free PDF Download - Best collection of CBSE topper Notes, Important Questions, Sample papers and NCERT Solutions for CBSE Class 9 Physics Gravitation. How does its weight vary as it goes from the earth to the moon? What is measured by physical balance? The above question papers contain MCQs (Multiple choice questions) on Gravitation, which have been collected from various objective oriented entrance examination conducted in India i.e.,MHT-CET, IIT-JEE, AIIMS, CPMT, NCERT, AFMC etc. Why? NCERT Solutions English / Hindi Medium Class 9 - 12 Notes Click Here. question_answer2) Why is G called the universal gravitational constant? ezyEXAMSolution > engineering students can download physics Gravitation jee main level toughest solved mcq practice sample question bank with solution question_answer76) How will the value of g be affected if (i) the rotation of the earth stops (ii) the rotational speed of the earth is doubled (iii) the rotational speed of the earth is increased to seventeen times its present value? 9th grade. Class 9 students definitely take this MCQ : Gravitation - 1 exercise for a better result in the exam. Why? How does its weight vary as it goes from the earth to the moon? Why? Comment. Our notes of Chapter 10 Gravitation are prepared by Maths experts in an easy to remember format, covering all syllabus of CBSE, KVPY, NTSE, Olympiads, NCERT & other Competitive Exams. (b) The time-period of a simple pendulum is independent of its mass. This contains 10 Multiple Choice Questions for Class 9 MCQ : Gravitation - 1 (mcq) to study with solutions a complete question bank. 0. Free Question Bank for 11th Class Physics Gravitation Gravitation Conceptual Problems question_answer19) The distance between two bodies A and B is r. Taking the gravitational force according to the law of inverse square of r, the acceleration of the body is a. The Earth and the Sun both have a very large radius. Does a rocket really need the escape velocity of \[\mathbf{11}.\mathbf{2}\text{ }\mathbf{km}{{\mathbf{s}}^{-\mathbf{1}}}\] initially to escape from the earth? Important Solutions 1. question_answer6) Is it possible to shield a body from gravitational effects? Notes TextBook Solutions Menu Toggle. | Important questions, guess papers, most expected questions and best questions from 11th physics chapter 08 Gravitation have CBSE chapter wise important questions with solution for free download in PDF format. Why does formation of tides takes place in sea or ocean? So it is also known as Newton’s law of gravitation. NEET Physics - Mini Question Bank Gravitation questions & solutions with PDF and difficulty level The Following Section consists of Gravitation Questions on Physics. What is the value of relative density of water? Why? Jobs Gravitation Worksheet-10 Â Which is more fundamental, the mass of a body or its weight ? Will the spoon reach the surface of the earth? (b) The time-period of a simple pendulum is independent of its mass. Earth is continuously pulling the moon towards its centre, still it does not fall to the earth. 10.2: Similar approaches can be taken in analysing electrical and gravitational potential problems. A coin and a piece of paper are dropped simultaneously from the same height. JEE NEET Physics Question Bank - Gravitation. All questions and answers from the Science_part_ _i_(solutions) Book of Class 10 Science Chapter 1 are provided here for you for free. Explain. Can we determine the gravitational mass of a body inside an artificial satellite? 1. NEET Physics - Mini Question Bank Gravitation questions & solutions with PDF and difficulty level. Would this be an increase or decrease in the mass ? Franchise Where does a body weigh more? question_answer5) If the density of planet is doubled without any change in its radius, how does \[g\] change on the planet? If the diameter of the earth becomes twice its present value but its mass remains unchanged, then how would be the weight of an object on the surface of the earth affected? (d) For a man in closed cabin that is falling freely under gravity, gravity 'disappears'. Mass is a scalar quantity which has only magnitude but no direction. question_answer40) Explain why tidal waves (high tide and low tide) are formed on seas. What will be the time-period of that pendulum on this planet, which is a second's pendulum on the earth? Does the weightlessness depend upon the distance of the satellite from the earth? If the radii of two planets be \[{{R}_{1}}\] and \[{{R}_{2}}\] and their mean densities be \[{{\rho }_{1}}\] and \[{{\rho }_{2}}\], then prove that the ratio of accelerations due to gravity on the planets will be \[{{R}_{1}}{{\rho }_{1}}:{{R}_{2}}{{\rho }_{2}}.\]. CLICK HERE to watch second part This set of questions contains all the possible concepts which could be asked in the examination Gravitation and Universal Law of Gravitation Q.1 What is Gravitation force? But the satellite spirals down towards the earth with an increasing speed, why? 18M.2.HL.TZ2.6d: The mass of the asteroid is 6.2 × 1012 kg. Explain why tidal waves (high tide and low tide) are formed on seas. Graphical Questions. Biology. by robert_castorena_20096. Give reason. Practice Now. 1st PUC Physics Gravitation Numerical Problems Questions and Answers. Sample Papers | Universal law of gravitation states that every object exerts a gravitational force of attraction on every other object. These solutions for Gravitation are extremely popular among Class 10 students for Science Gravitation Solutions come handy for quickly completing your homework and preparing for exams. Privacy Policy Question bank; Class XI; Physics; Gravitation; Quiz Details; Class/Course - Class XI Subject - Physics Chapter - Gravitation. question_answer51) The escape velocity for a satellite is\[\mathbf{11}.\mathbf{2}\text{ }\mathbf{km}{{\mathbf{s}}^{-1}}\]. Lalit Sardana Sir Why. question_answer74) A body is taken from the centre of the earth to the moon. Give the value of G with proper units. Study Packages About Gravitation questions. question_answer82) Prove that acceleration due to gravity on the surface of the earth is given by \[g=\frac{4}{3}\pi \rho GR,\], where \[G\] is gravitational constant, \[\rho \] is mean density and R is the radius of the earth. If suddenly the gravitational force of attraction between the earth and a satellite revolving around it becomes zero, what will happen to the satellite. question_answer11) According to Newton's law of gravitation, the apple and the earth experience equal and opposite forces due to gravitation. NEET Physics - 100Q Question Bank Gravitation questions & solutions with PDF and difficulty level question_answer79) What would happen if the force of gravity were to disappear suddenly? | Identify the portion of sun in the following diagram if the linear speed of the planet is greater at C compared to that at D. The largest and shortest distances of the earth from the sun are \[{{r}_{1}}\] and \[{{r}_{2}}\] respectively. Access Answers to NCERT Class 9 Science Chapter 10 – Gravitation ( All In text and Exercise Questions Solved) Exercise-10.1 Page: 134. Just Exam provide a platform to all students who want to make practice for various subject online. Why? question_answer36) What is the effect of rotation of the earth on the acceleration due to gravity? Do we need different velocities to do so? QUESTION BANK. question_answer84) Why does the earth impart the same acceleration to all bodies? question_answer73) Which of the following observations point to the equivalence of inertial and gravitational mass: (a) Two spheres of different masses dropped from the top of a long evacuated tube reach the bottom of the tube at the same time. Why Studyadda? If the separation between the earth and the satellite is increased to 4 times the previous value, then what will be the new time period of the satellite? Answer the following : (a) Among the known types of forces in nature, the gravitational force is the weakest. Lakhmir Singh Class 10 Solutions; NCERT Solutions Menu Toggle. Why the value of g is more at the poles than at the equator? Why then does it play a dominant role for motion of bodies on the terrestrial, astronomical and cosmological scale? Answer: The tides in the sea formed by the rising and falling of water level in the sea are due to the gravitational force of attraction which the sun and the moon exert on the water surface in the sea. If the gravitational force follows an inverse fourth power law, then what would be the acceleration of the body A? question_answer22) Why a body weighs more at the poles than at the equator? Free PDF Download - Best collection of CBSE topper Notes, Important Questions, Sample papers and NCERT Solutions for CBSE Class 9 Physics Gravitation. question_answer28) At which place on earth's surface, the value of \[g\] is largest and why? Which of the following observations point to the equivalence of inertial and gravitational mass: (a) Two spheres of different masses dropped from the top of a long evacuated tube reach the bottom of the tube at the same time. For questions of other topics of Physics, use the button given at the bottom of this page. Acceleration due to Gravity ⇒\(F = mg and also F = G\frac{Mm}{R^{2}}\) ⇒\(g= G\frac{Mm}{R^{2}}\) ⇒Plug the values of G = \(6.673*10^{^{-11}}Nm^{2}Kg^{-2}\) ⇒ M(mass of Earth) = 6 * 10 24 kg and R= 6 * 10 6 m , to get the value of gas ≈ \(9.8ms^{-2}\). question_answer4) If spheres of same material and same radius r are touching each other, then show that the gravitational force between them is directly proportional to \[{{r}^{\mathbf{4}}}\]. What would happen if the force of gravity were to disappear suddenly? State, in words, Newton’s universal law of gravitation. Prove that acceleration due to gravity on the surface of the earth is given by \[g=\frac{4}{3}\pi \rho GR,\], where \[G\] is gravitational constant, \[\rho \] is mean density and R is the radius of the earth. Â (a) Define mass of a body. Why? question_answer71) Choose the correct alternatives : (i) If the gravitational potential energy of two mass points infinite distance away is taken to be zero, the gravitational potential energy of a galaxy is (positive/negative/zero). question_answer23) Where does a body weigh more? Two Marks questions. IB Physics SL and HL Question Bank. Why are we not thrown off the surface of the earth by the centrifugal force? Gravitation Class 9 Extra Questions HOTS (Higher Order Thinking Skills) Question 1. Question Bank and Quizzes; Past Papers Video Solutions; Exam Secrets; Get full Access; Physics Online Revision Course > Question Bank. Define : gravitation, gravity and gravitational force. Give reason. Videos Why? How much is the weight of an object on the moon as compared to its weight on the earth ? 9099920082/9099020032, Email us: Why an astronaut in an orbiting space-craft is not in zero gravity although weightless? Hence what may be the value of escape velocity from the surface of a 'Black hole' such that it holds everything to itself? Played 0 times. (c) The gravitational force on a particle inside a hollow isolated sphere is zero. Textbook Solutions 8950. TextBook Solutions Menu Toggle. A. Suppose a planet exists whose mass and radius both are half those of the earth. The gravitational force exerted by the sun on the moon is greater than (about twice as great as) the gravitational force exerted by the earth on the moon. The distance between two bodies A and B is r. Taking the gravitational force according to the law of inverse square of r, the acceleration of the body is a. Which satellite do you think it could be? Question Bank Solutions 7538. Is it possible to shield a body from gravitational effects? Why is the weight of a body at the poles more than the weight at the equator? (f) Planets orbiting around the sun obey Kepler's Third Law (approximately). Join our Telegram Channel too for updates. NEET help on Whatsapp Chat. (a) What do you understand by the term ‘acceleration due to gravity of earth’ ? What assumption was made by Newton regarding the shape of an orbit of a planet around the sun for deriving his inverse square rule from Kepler's third law of planetary motion ? Does the concentration of the earth's mass near its centre change the variation of \[\text{g}\] with height compared with a homogeneous sphere? | The mass and diameter of a planet are twice those of the earth. 0 times. Why? question_answer32) Why does a tennis ball bounce higher on a hill than on plains? Name the scientist who gave this law. A body is taken from the centre of the earth to the moon. Syllabus. question_answer30) When a clock controlled by a pendulum is taken from the plains to a mountain, it becomes slow but a wrist-watch controlled by a spring remains unaffected. question_answer12) According to Newton's law of gravitation, every particle of matter attracts every other particle. So far we have discussed various forces: Pushes and pulls, elastic forces, friction and other forces that act when one body is in contact with another. Practice Now. The entire NCERT textbook questions have been solved by best teachers for you. Free PDF download of Important Questions with solutions for CBSE Class 9 Science Chapter 10 - Gravitation prepared by expert Science teachers from latest edition of CBSE(NCERT) books. Kepler's Laws of Planetary Motion. question_answer46) Does a rocket really need the escape velocity of \[\mathbf{11}.\mathbf{2}\text{ }\mathbf{km}{{\mathbf{s}}^{-\mathbf{1}}}\] initially to escape from the earth? (b) Calculate the acceleration due to gravity on the surface of a satellite having a mass of 7.4 x 10. What will be the gravitational force of the earth on the moon, in comparison to the gravitational force of the moon on the earth? Gravitation Class 9 Extra Questions HOTS (Higher Order Thinking Skills) Question 1. MathsGee Q&A is the knowledge-sharing community where millions of students and experts put their heads together to crack their toughest homework questions. Topic 3: Thermal Physics Quiz — 9 sub-questions. question_answer10) We cannot move finger without disturbing all stars. Explain. The escape velocity for a satellite is\[\mathbf{11}.\mathbf{2}\text{ }\mathbf{km}{{\mathbf{s}}^{-1}}\]. b. Advertisement Remove all ads. Time Tables 23. What is the SI unit of mass ? The value of universal gravitational constant G has been found to be 6.67 ´10–11 Nm2 / kg2. question_answer64) Identify the portion of sun in the following diagram if the linear speed of the planet is greater at C compared to that at D. question_answer65) The largest and shortest distances of the earth from the sun are \[{{r}_{1}}\] and \[{{r}_{2}}\] respectively. Why is centre of mass of a body often called its centre of gravity? Practice Now. What is the ratio of the force of attraction between two bodies kept in air and the same distance apart in water? Which single condition enables Newton’s universal law of gravitation to be used to predict the force between the Earth and the Sun? question_answer42) A satellite does not need any fuel to circle around the earth. Question2: What is gravity ? 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