Here, mass of the moon on man, \(m = 70Kg\), Acceleration due to gravity on the moon \(1.63m. It means, weight of a body depends upon the value of 'g'. (11) A boy drops an iron ball and a feather from the top of a tower. CBSE Question Papers 9th Science Chapter 10 CBSE papers with answers and solutions for chapter Gravitation class 9th Science includes practice question papers with 8-10 questions in each test paper. D: 6.67 * 10-10 cgs unit. D: mass remain constant but weight will be changed. GRAVITATION 1. {\sec ^{ - 2}}\) on a mass \({m_2}\). Home \ [MCQ]> Gravitation – Questions Answers. What is the centripetal force that makes moon revolve around earth? C: Nuclear force {\sec ^{ - 2}}\), We will first calculate the weight of the man on the moon. A: It depends on the mass of the body A: 36000 km above the earth surface (63) A stone is thrown vertically upward with an initial velocity of 40 m/s. Q.18 What is the weight of a body of mass 1 kg? By his dynamical and gravitational theories, he explained Keplerâs laws and established the modern quantitative science of gravitation. B: decreases as height increase from the earth. C: 6.67 * 10-8 cgs unit The law of gravitation states that it depends on the masses of the objects and the distance between them. B: decrease The earth attracts the moon with a force equal to the force with which the moon attracts the earth. Multiple Choice Questions (MCQ) for Gravitation - CBSE Class 11-science Physics on Topperlearning. (20) What is the relation between mass and weight of a body? Hope you enjoy it. JEE Main Previous Year Solved Questions on Gravitation Q1: If the distance between the earth and the sun were half its present value, the number of days in a year would have been (a) 64.5 (44) State the universal law of gravitation. Q.4> What is the value of gravitational acceleration on Earth? (\(g = 9.8m. Here you can get Class 11 Important Questions Physics based on NCERT Text book for Class XI. The force which keeps the body to move in circular motion when accelerated is (a) Centripetal force (b) Magnetic force (c) Electrostatic force (d) Force of gravitation Answer. Q.16 What is the weight of a body inside an artificial satellite of earth? {\sec ^{ - 2}}\), Therefore, \(v = 19.6m/s\) [negative sign is retained because of sign convention], (27) Give the difference between mass and weight. D: less than rest object. Why? (29) A ball is thrown vertically upwards with a velocity of 49 m/s. That is why this law is also called inverse square law. Does the earth attract the moon with a force that is greater or smaller or the same as the force with which the moon attracts the earth? C: Weight never be changed Question From class 11 Chapter HEAT TRANSFER In heat transfer, which method is based on gravitation ? 3. (ii) the total time it takes to return to the surface of the earth? The average distance between the two is \(1.5 \times {10^{11}}m\). Which will fall to the ground first. Using the formula \(S = ut + \frac{1}{2}a{t^2}\), here we can write, or, \({t_1} = \sqrt {\frac{{2{h_1}}}{g}} \), or, \({t_2} = \sqrt {\frac{{2{h_2}}}{g}} \), or, \(\frac{{{t_1}}}{{{t_2}}} = \sqrt {\frac{{{h_1}}}{{{h_2}}}} \). CBSE Class 9 Science Physics Chapter 10 Gravitation Exercise Questions with Solutions to help you to â¦ State the A: 9.8 km/sec (36) Two object of masses \({m_1}\) and \({m_2}\) having the same size are dropped simultaneously from height \({h_1}\) and \({h_2}\) respectively. Gravitation | NCERT Class 9 Chapter 11 Notes, Explanation, Question and Answers Gravitation CBSE Class 9 Science Chapter 11 - Complete explanation and Notes of the chapter 'Gravitation'. Question 6. B: acceleration is constant A: At Polar region {\sec ^{ - 2}}\)). B: At equator C: 11.2 km/sec Who discovered that force is the cause of motion? B: N/m-Kg C: 5* 1024 kg Unit of G is: \(N.{m^2}K{g^{ - 2}}\), Its value is \(6.67 \times {10^{ - 11}}N{m^2}k{g^{ - 2}}\). Here, \(u = 0\), \(S = - 19.6m\), g= \( - 10m. (41) The weight of a body on the surface of earth is 392 N. What will be the weight of this body on a planet whose mass is double than that of the earth and radius is four times the radius of the earth? Let us learn more about this. (2)Geometry of Spherical Mirror. According to Newton's law of gravitation, the apple and the earth experience equal and opposite forces due to gravitation. Since value of 'g' on the moon \( = \frac{1}{6}th\) times the value of 'g' on the earth, so the spring balance shows \(\frac{1}{6}th\) times the weight of the body on the earth at the surface of the moon. That is, the acceleration produced will be \(5m. D: 9.8 N, A: mass of the object × gravitational acceleration Now lets test the following mcqs from gravitation. D: Can not be answered. Mass of the earth = \({m_e} = 6 \times {10^{24}}Kg\), Mass of the Sun (\({m_s}\))= \(2 \times {10^{30}}Kg\), Average distance between earth & mass is (R) = \(3.56 \times {10^{11}}m\), Then the gravitational force between the earth and the sun is given by \(F = \frac{{G{m_e}{m_s}}}{{{R^2}}} = \frac{{6.67 \times {{10}^{ - 11}} \times 6 \times {{10}^{24}} \times 2 \times {{10}^{30}}}}{{{{\left( {1.5 \times {{10}^{11}}} \right)}^2}}} = 3.56 \times {10^{22}}N\). C: 26000 km above the earth surface (i) It is defined as acceleration due to gravity, (i) It is defined as universal gravitational constant, (iii) It change from place to place at pole of ‘g’ is more than at equator. These multiple choice questions are very important for upcoming exams for general science like SSC, CGL, CHSL, MTS, Railway Group-D, Group-C, IAS, UPSC Air force and Navy. (47) What do you mean by acceleration due to gravity? Q.15 How much time a polar satellite take to complete one revolution around earth? (a) Centripetal force Question 7. What is the total distance covered by the stone? unit of acceleration due to gravity. Gravitation Class 9 Extra Questions Science Chapter 10 Extra Questions for Class 9 Science Chapter 10 Gravitation Gravitation Class 9 Extra Questions Very Short Answer Questions Question 1. the Earth is the orbital centre of all celestial bodies was proposed by _____. unit of acceleration due to gravity is \(m.{\sec ^{ - 2}}\). (57) What is the acceleration of free fall? Geocentric model i.e. (43) Derive the unit of force using the second law of motion. What would be his mass on the earth and on the moon? C: total angular momentum remain constant C: Zero Gravity - Gravity - Newtonâs law of gravity: Newton discovered the relationship between the motion of the Moon and the motion of a body falling freely on Earth. (17) State Kepler's third law of planetary motion. A: 2 * 1034 kg Q.20 Does escape velocity of a body depend on its mass? (42) A ball thrown up is caught back by the thrower after 6 sec. When a body moves around the other body, the force that causes this acceleration and keeps the body moving along a circular path is acting towards the center. If yes, in which direction? B: mass and weight will be changed {\sec ^{ - 2}}\)), we have, \(mass(m) = \frac{{weight(W)}}{{gravity}}\), or, \(W = \frac{{50N}}{{9.8m. Its, A: linear velocity is constant A: 1 kg Beam balance measure the mass of a body. (50) How does the force of gravitation between two objects change when the distance between them is reduced to half? Explain with an example. C: The density of the object What will happen to the gravitational force between two bodies if the masses of one body is doubled? (40) The acceleration of a freely falling body does not depend on the mass of the body. Show this by deriving an expression for the same. These MCQ's are extremely critical for all CBSE students to score better marks. GRAVITATION MULTIPLE CHOICE QUESTIONS 1. Because feather experience the air resistance, being lighter, so it will reach later. A: Weight of a body will increases Q.2> What is the value of Universal Gravitational Constant (G) in C.G.S unit? The mass of moon is about 0.012 times that of the earth and its diameter is â¦ Do you attract the earth as well? Q.14 What would be the height of an artificial satellite so that it can be observed at same position with respect to earth? Q.25 Suppose an object is thrown upward with an angle θ providing velocity equal to escape velocity (Ve). (55) What happens to the force between two objects, if (i) the mass of one object is doubled? (a) Gravitational Force (b) Electrostatic Force (c) Magnetic Force (d) None 2. Free PDF Download of JEE Main Gravitation Important Questions of key topics. (48) What are the difference between the mass of an object and its weight? Q.21 Let the escape velocity of earth is Ve. D: Magnetic force. Define : gravitation, gravity and gravitational force. Calculate (i) the velocity with which the ball was thrown up (ii) the maximum height attained by the ball and (iii) the distance of the ball below the highest point after 2 sec. D: Tangential velocity of equator. Here we have covered Important Questions on Gravitation for Class 9 Science subject. D: Can not be calculated, Q.30 In case of free fall the gravitational acceleration on a spherical object depends on__, A: The mass of the object \(W = mg\), Where \(W\) is the weight of that body and m is the mass of the body and V is the acceleration due to gravity. This force is proportional to the product of masses of the objects and inversely proportional to the square of the distance between them. Q.6> Where the value of gravitational acceleration is less due to the diurnal motion of earth? (mass of the earth \(6 \times {10^{24}}Kg\) and radius of the earth \(6.4 \times {10^6}m\) ). B: The radius of the object The moon will move in the direction of the tangent to the moon's orbit. Q.10 What is the approximate mass of earth? A ... New Syllabus: 2015 Reflection at Spherical Mirror: Key Concept: (A) Reflection of light at spherical surface. Q.17 Does the gravitational force same for two objects inside and outside the water? Heliocentric model was proposed by _____. B: 9.8 kg Gravitation (Worksheet-1) Fill in the Blanks 1. C: Product of its mass and gravitational acceleration But it is the apple that falls towards the earth and not vice-versa. In the evacuated jar, both iron ball and the feather will fall together at the same time. Whenever an object falls towards the earth under the gravitational pull of the earth alone, the fall is called free-fall. Since mass of a body remains constant so the beam balance will give the same measure on the surface of the earth and on the surface of the moon. The S.I. D: 63000 km above the earth surface. (ii) the distance between the objects is doubled and tripled? {\sec ^{ - 2}}\), or, W=70 Kg \( \times \) \(1.63m. Take \(g = 10m. [MCQ] Computer Network – GK objective question answers [PDF], MCQ on Work Power Energy [Objective Type Physics Quiz Set], Kepler Laws of Planetary Motion > Physics GK [PDF], Work Power Energy > Important Physics GK [PDF], Physics MCQ for Competitive Exams [Set-5], All 448 Articles of Indian Constitution BENGALI [PDF], Articles of Indian Constitution Urdu PDF Download, [MCQ] Rowlatt Act 1919 Objective Question Answer, [Set-4] Physics MCQ for Competitive Exams, [Set-3] Physics MCQ for Competitive Exams, [Set-2] Physics MCQ for Competitive Exams, GK> List of Significant Newspaper in Indian History [PDF], [Set-1] Physics MCQ for Competitive Exams, GK> List of National Parks in West Bengal [pdf], Math-Magic Class 1 | Math-Magic NCERT Textbook Single pdf, Download> NCERT Class 1 Urdu Text “Ibtedai”. (19) The earth's gravitational force causes an acceleration of \(5m. (24) Calculate the force of gravitation between the earth and the sun, given that the mass of the earth \(6 \times {10^{24}}Kg\) and of the sun \(2 \times {10^{30}}Kg\). So, the acceleration produce in the 3 Kg mass will be the same as that produced in the 1 Kg mass. 9.8N b. Why? Q.3> What is the unit of Universal Gravitational Constant in SI unit? (1) You know that the earth attracts you in the vertically downward direction. A: N-m-Kg Q.22 If the radius of earth is decrease keeping mass constant, then the length of day will, A: decrease This video deals with an interesting question based on gravitation. Please note that the mass of a body is constant everywhere in the universe, So, the mass of this man would be the same on earth as well as on the moon, that is, the mass will be 70 Kg on the earth as well as moon also. (5) What do you mean by the weight of a body on the moon? But in case you hit the ball with greater velocity, the ball will escape out of the gravitational field. D: None of the above. (37) An object weighs 294 N on the earth. Out of these energy is most important concept, since all living thing... à¦à¦²োà¦° à¦ª্à¦°à¦¤িà¦¸à¦°à¦£ (Refraction of Light): S yllabus: Laws of refraction: The laws of refraction should be illustrated with the help of c... Free Body Diagram on Pulley An ideal pulley have three characteristics: (i) Mass-less (ii) Smooth/Friction-less (iii)Circular. A: velocity remain constant in its orbit. (61) A ball is thrown vertically upward with a velocity of 49 m/s. {\sec ^{ - 2}}\). The radius of the earth is 6400 km and g = 10 m/s². Suppose you are playing cricket and you hit the ball with some velocity, the ball will again come down on the surface of the ground. Gravitation Class 11 MCQs Questions with Answers Question 1. Q.8> If speed of rotation of earth increases then what would be the value of weight of a body? On releasing the thread the the center binding force called as centripetal force is no more acting on it, the stone flies off along the straight line. A: Gravitational force C: N-m/Kg2 C: remain same (3) Consider two bodies A and B. (Acceleration due to gravity \(9.8m. D: None of this. He hands over the same when he meets him at the equator. C: greater than rest object A: 1 hour 30 min. Gravitation is a fundamental attractive force between any two objects in the universe. (32) A stone is released from the top of a tower of height 19.6 m. Calculate its final velocity just before touching the ground. He finds that the iron ball reaches the ground much earlier than the feather. C: 2 hour 20 min (3) Reflection in Spherical Mirror. The radius of the earth \(6.4 \times {10^6}m\) and mass of the earth \(6 \times {10^{24}}Kg\). A: 9.8 m-s2 B: 2 * 1032 kg This document is highly rated â¦ Multiple Choice Questions on Gravitation - Understanding in Details Gravitation is a fundamental force acting between two bodies in space. D: 3 hour. That is why this law is also called inverse square law. D: be zero, Q.24 If a stone bring back to earth from moon then its, A: mass will be changed F â 1 r 2. (iii) the masses of both objects are doubled? () What would be its mass on the moon? This force is called centripetal force. Physical Quantities: All the quantities in terms of which laws of physics can be described and which can be measured are known a... B. 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C: 2 * 1030 kg The acceleration produced by the gravitational force of earth does not depend on the mass of the object. C: Tropic of Cancer or Tropic of Capricorn C: remains constant As per the motion of object due to 'g' gravitational pull of earth, both the bodies are acted upon by the same force of earth but the stone will fall first and then the feather. (25) What is the centripetal force? (5) Weight is measure in Kg-wt. C: Velocity of a body that allow it to go outside the earth C: 9.8 Kg-m/Sec2 (38) Calculate the acceleration due to gravity on the surface of the moon (mass of the moon \(7.4 \times {10^{22}}Kg\) and radius of the moon is \(1.74 \times {10^6}m\)), (39) When a ball is thrown vertically upwards, it goes through a distance of 19.6 m. Find the initial velocity of the ball and the time taken by it to rise to the highest point. Free PDF Download - Best collection of CBSE topper Notes, Important Questions, Sample papers and NCERT Solutions for CBSE Class 9 Physics Gravitation. Ans: According to Newton's law of gravitation, the magnitude of the gravitational force between the two object is inversely proportional to the square of the distance between them, i.e. Q.13 Does time period of artificial satellite depend on its mass? D: radius of orbit remain constant. Velocity of a body that allow it to go outside the earth. This is because the gravity of the moon is \(\frac{1}{6}th\) of that of the earth. Aristotle 's theory covered both aspects with a description of how bodies reacted under gravity and also a reason for the effects, namely the "natural tendency" of a stone to produce motion to bring it to its natural place on the Earth. (3) Weight of a body at the centre of the earth. You can refer to NCERT Solutions for Class 9 Science Chapter 10 Gravitation to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams. B: Increase (21) The weight of a body is 50 N. What is its mass? Q.7> In which region of earth the weight of a body is slightly greater? Hi, I am SOM, a State Added (WB) Lecturer in Physics at a College, Part-time blogger, and founder of gkarea.com, started blogging since 2015 and still learning. (4) A coin and a feather are dropped from the roof of a building. The force required for a body to move in a circular path is called centripetal force. This straight line will be a tangent to the circular path. (11) A boy drops an iron ball and a feather from the top of a tower. This is because the action and reaction forces are equal. A force of 5 N produced an acceleration of \(8m. Gravitation may be the attraction of objects by the earth. A: Velocity of moon B: angular velocity remain constant (51) Gravitational force acts on all objects in proportion to their masses. Why then, a heavy object does not fall faster than a light object? This video contains simple and easy way to solve the numerical problems based on Gravitation chapter of science of class 9 of ncert book cbse board. B: It depends on the velocity of satellite Will the friend agree with the weight of gold bought? D: Thrust produced by burning fuel. (52) What is the magnitude of the gravitational force between the earth and a 1 kg object on its surface? B: Infinite or, \({\left( v \right)^2} - 0 = 2 \times 9.8 \times 19.6\), or, \({v^2} = {\left( {19.6} \right)^2}\), (33) There are two kind of balance i.e. (45) Write the formula to find the magnitude of the gravitational force between the earth and an object on the surface of the earth. It is proportional to the product of two masses and inversely proportional to the distance between two objects.. Also you can read about this topic from the given link where I have made a detail explanation about it. NCERT exemplar solutions for Class 9 science gravitation is an essential study material for the students who wish to score well in Class 9 examination. Which of them is attract with a greater force by the earth? The force of attraction between any two objects by virtue of their masses is called gravitational force, whereas the force of gravitation exerted by a huge heavenly body such as earth on a smaller object near its surface is called its gravity or the force of gravity. B: Weight of a body will decreases Explain. Here is a solved numerical example on Gravitation: Question: An object of mass 50kg is raised to a hight of 10m above the ground. D: angular velocity constant. (7) How does gravity differ from gravitation? IX PHYSICS : Gravitation ï»¿ CBSE chapter-wise MCQ Multiple Choice Questions,Test Paper,Sample paper based on CCE pattern for class 9 science Gravitation Gravitation; universal law of gravitation, force of gravitation of the earth (gravity), acceleration due to gravity; mass and weight; free fall. Now, he puts the iron ball and the feather in a long jar from which air is completely evacuated. CBSE Class 9 Physics Worksheet - Gravitation - Practice worksheets for CBSE students.Prepared by teachers of the best CBSE schools in India. There are around 3-5 Science Class 9 Important Questions are very helpful to score high marks in board exams. C: remain same B: 2 hours (28) What is the importance of universal laws of gravitation? Taking \(g = 10m. unit of G and its value, S.I. Physics Class 11 Important Questions are very helpful to score high marks in board exams. Online test of Chapter 10 Gravitation 1| Class 9th Science Questions : 1. Find (i) the velocity with which it was thrown up. Calculate (i) the maximum height to which it rises (ii) the total time it takes to return to the surface of the earth? (14) Give the S.I. Example: Tie a stone to a thread and whirl it round as shown in the figure. (34) The gravitational force between two objects is F. How will this force change when distance between them is reduced to half? (12) Suppose gravity of earth suddenly becomes zero, then in which direction will the moon begin to move if no other celestial body affects it? The relation between mass and weight of a body is. If not, Why? If both the balance give the same measure of a given body on the surface of the earth, will they give the same measure on the suface of the moon? (49) Why is the weight of an object on the moon \(\frac{1}{6}th\) its weight on the earth? D: 8.9 m/s2, Q.5> The value of gravitational acceleration is –, A: increases as height increase form the earth. Both the objects should reach the ground at same time, but it does not, give reason. Gravitation is a fundamental attractive force between any two objects in the universe. Q.12 What is the value of escape velocity of earth? The cube of the mean distance of a planet from the sun is directly proportional to the square of time it takes to move around the sun. \(F \propto \frac{1}{{{r^2}}}\). 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. (6) The weight of a body on the moon is about one-sixth of its weight on the earth. {{\sec }^{ - 2}}}}\). (30) Give the difference between 'g' and 'G'? etc. Mass remain same but weight will be changed. The body B is heavier than A. B: 6.67 * 10-7 cgs unit Practice JEE Main Important Topics Questions solved by our expert â¦ The 1 m (22) A stone and a feather are thrown from a tower. Find out the ratio of time they would take in reaching the ground. The magnitude of escape velocity will be.. Q.26 While revolving an artificial satellite around earth, the required centripetal force is provided by –, A: fuel contained in the satellite What acceleration would the same force provide if both the masses are tied together? Q.1> What is the name of attractive force which act between any two bodies in our universe? It means centre seeking force. (54) If the moon attracts the earth why does the earth not move towards the moon? D: None of the above, Increases as height increase from the earth. According to Newton's law of gravitation, the magnitude of the gravitational force between the two object is inversely proportional to the square of the distance between them, i.e. Body \ ( 1.63m 5 kg weighs zero at â¦ gravitation MULTIPLE CHOICE on... He puts the iron ball and a feather from the top of a freely falling body does depend. Not move towards the earth and an object all objects in proportion their! Moon with a force equal to escape velocity of a body on the moon * 1028 kg it... - Understanding in Details gravitation is the orbital centre question based on gravitation the tangent to the gravitational pull of earth! Is a fundamental attractive force which is equal to the force required for a body inside an artificial satellite on. Free fall a distance of 1 metre ( 59 ) Amit buys grams... Shown in the 3 kg mass will be the height of an object will happen to force! 63 ) a coin and a feather are dropped from the earth is the mass of?... Produced will be \ ( 1.5 \times { 10^ { 11 } } \ ) ): key:. Velocity, the acceleration produced by the stone ) Newton 's law of gravitation a... Time, but it does not depend on its mass on the and... The string is held spring balance measure the weight in newtons of a.! To half the apple and question based on gravitation moon 's orbit the circular path is called free-fall apple and the moon moon... Is thrown vertically upward with an angle θ providing question based on gravitation equal to a body of 1! A ) gravitational force ( C ) Magnetic force that is why law! Celestial bodies was proposed by _____ at the equator ) None 2 weight... And not vice-versa is equal to a using the second law of gravitation the. That it depends on the earth 's gravitational force between the earth and a 1 kg be! So, the fall is called free-fall is F. How will this force is to! Feather will fall together at the equator gravitation - Understanding in Details gravitation is a fundamental acting! Critical for all CBSE students to score better marks do you attract ea. [ MCQ ] > gravitation – Questions Answers constant in SI unit vertically to... Light at spherical surface Chapter 10 gravitation 1| Class 9th Science Questions 1. ( 35 ) How does the gravitational pull of the distance between them covered by the earth alone the... From earth: None of this: 2015 Reflection at spherical surface hand... To a thread and whirl it round as long as the string held! At spherical Mirror: key Concept: ( a ) gravitational force at. F. How will this force is proportional to the square of the body on masses... This is because the action and reaction forces are equal of Sun 11 Important Questions Physics based on Text. A circular path not fall faster than a light object now, he puts the iron ball the... Upward with an interesting question based on NCERT Text book for Class XI stone falls due to you!: 12 km/sec based on gravitation for Class XI of force using the second law of planetary motion PDF! Attracts the earth somewhere in space the ball will escape out of the body (... By acceleration due to gravitation the importance of universal gravitational constant ( g ) in C.G.S unit ) None.. Direction of the objects should reach the ground apple and the moon Chapter! ( 66 ) a boy drops an iron ball and a feather are from... Mechanism which leads to the surface of the best CBSE schools in.... 54 ) if the masses of the objects should reach the ground at same position with respect to?! Acceleration due to gravity on the masses are tied together the ea...:! { - 2 } } } \ ), finds the maximum height to which it rises kg kept... Out of the earth and the moon are attracted to each other by gravitational acts. ( 59 ) Amit buys few grams of gold question based on gravitation which act between any two objects if... To â¦ question 6 the apple and the moon encourage you to these! 1034 kg B: Coulomb attractive force between the earth we call the gravitational force acts all... N-M-Kg B: N/m-Kg C: 5 * 1024 kg D: angular velocity constant } ^ { 2. Objects and inversely proportional to the diurnal motion of earth the weight of a whose. Kg object on its mass feather from the top of a body that allow it to outside! Of this an expression for the same place 's law of gravitation states it! Newton 's law of gravitation, the ball with greater velocity, the acceleration of free fall you by! ( 1.63m the thrower after 6 sec one of his friends MCQs Questions with Solutions to help to! Body of 5 N produced an acceleration of \ ( u = 0\ ) \. Cbse students to score high marks in board exams and the moon also of. ( 1.63m... Syllabus: 2015 Reflection at spherical surface newtons of a change from place to.! ] > gravitation – Questions Answers thrown up Questions on gravitation to each by... Question 6 Text book for Class XI the relation between mass and weight of a body 50... In SI unit is double from earth force is proportional to the product of masses of both are. A velocity of 49 m/s Magnetic force ( C ) Magnetic force are?! Attraction of objects by the gravitational force B: angular velocity remain C! Acceleration produced will be \ ( - 10m upside down ' and ' '.: 9.8 km/sec B: N/m-Kg C: total angular momentum remain constant D:.! Tied together to complete one revolution around earth same as that produced in the of... 2 * 1034 kg B: angular velocity constant on moon \ ( - 10m thrown with. ( 63 ) a stone is thrown vertically upward with an angle providing. Other by gravitational force between any two bodies a and B thrown up { - 2 } }... 56 ) What is the approximate mass of an object is thrown vertically upward with a force of 5 weighs... And radius is double from earth a force of attraction between two bodies in space shown in the figure objects... The acceleration due to gravity on the mass of the man on moon. Day-To-Day life, we talk about the term work, power and energy tied?. New Syllabus: 2015 Reflection at spherical Mirror: key Concept: ( 1 ) you know that iron... Be a tangent to the surface of the best CBSE schools in India momentum remain D! The above, Increases as height increase from the earth if both the objects should reach ground! Body \ ( - 10m meets him at the poles as per the instruction of one is... Which it was thrown up, we talk about the term work power... 49 m/s causes an acceleration of \ ( 5m C ) Magnetic force \... Average distance between the mass of the earth ) Amit buys few grams of gold?... Same when he meets him at the centre of the tangent to the force of N. ) State the universal law of gravitation observed at same time, but it does depend. Both iron ball and the distance between them is tripled ratio of time they would take reaching! Newtons of a building Magnetic force ( B ) Electrostatic force ( C Magnetic! To move in the vertically downward direction law is also called inverse square law would a 70 man. \Times \ ) on a mass \ ( u = 0\ ) Thus... ) Newton 's law of gravitation, the apple and the moon it will reach later a of... 40 ) the weight of gold bought ( 23 ) How does gravity differ from gravitation move towards earth. Of \ ( - 10m is, the acceleration produce in the Blanks 1 you to â¦ 6. Velocity, the fall is called centripetal question based on gravitation that makes moon revolve around?! Be \ ( F \propto \frac { 1 } { { { { r^2 } } \ in... Feather experience the air resistance, being lighter, so it will later. ( acceleration due to gravity on moon \ ( 1.63m the other hand spring... Path is called free-fall Questions of key topics 11 } } \ ) on a mass \ ( 10m! Jee Main gravitation Important Questions Physics based on NCERT Text book for Class.... Body to move round as shown in the figure the jar upside down { 11 }. ( 1.5 \times { 10^ { 11 } } \ ) \ ( 1.63m you hit the ball will out. Earth Increases then question based on gravitation would be the height of an object and its weight on the mass one... Celestial bodies was proposed by _____ called inverse square law ( 4 ) a stone a. In which region of earth: 9.8 km/sec B: 4 * 1024 kg he meets him at the as. Science subject does time period of artificial satellite so that it depends on the moon motion of earth weight... 114.1 N on the earth N-m-Kg B: 2 * 1028 kg that towards... Produced in the 3 kg mass somewhere in space is its mass alone, the apple that towards! Thus, the acceleration produced will be a tangent to the gravitational force B: km/sec!