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. D: 12 km/sec. Gravitation (Worksheet-1) Fill in the Blanks 1. (44) State the universal law of gravitation. The stone continuous to move round as long as the string is held. Extra Questions for Class 9th: Ch 10 Gravitation (Science) Important Questions Answer Included Very Short Answer Questions (VSAQs): 1 Mark Q1. 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. D: Can not be answered. D: None of the above. {\sec ^{ - 2}}\), Therefore, \(v = 19.6m/s\) [negative sign is retained because of sign convention], (27) Give the difference between mass and weight. 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. A: 2 * 1034 kg (28) What is the importance of universal laws of gravitation? (31) What is the force of gravity acting on a point mass of 1 kg released from a height of 1 m from the surface of earth? B: Weight of a body will decreases A: 1 kg B: 9.8 kg CBSE Class 9 Physics Worksheet - Gravitation - Practice worksheets for CBSE students.Prepared by teachers of the best CBSE schools in India. 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, \(\frac{{{t_1}}}{{{t_2}}} = \sqrt {\frac{{{h_1}}}{{{h_2}}}} \). (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. Heliocentric model was proposed by _____. B: acceleration is constant (43) Derive the unit of force using the second law of motion. Q.21 Let the escape velocity of earth is Ve. (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 \(2 \times {10^{30}}Kg\). (iii) the masses of both objects are doubled? D: less than rest object. 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. C: Tropic of Cancer or Tropic of Capricorn C: remain same (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? {\sec ^{ - 2}}\). Do you attract the earth as well? (11) A boy drops an iron ball and a feather from the top of a tower. Online test of Chapter 10 Gravitation 1| Class 9th Science Questions : 1. Answer: If the mass of one body is doubled, [â¦] What will happen to the gravitational force between two bodies if the masses of one body is doubled? B: mass and weight will be changed Which of them is attract with a greater force by the earth? Q.13 Does time period of artificial satellite depend on its mass? If yes, in which direction? Check below the important MCQs on CBSE Class 9 Science Gravitation: 1. Free PDF Download - Best collection of CBSE topper Notes, Important Questions, Sample papers and NCERT Solutions for CBSE Class 9 Physics Gravitation. A: 36000 km above the earth surface (35) How does the gravitational force between two bodies changes if the distance between them is tripled? D: angular velocity constant. This straight line will be a tangent to the circular path. What is the weight in newtons of a 10 kg object on the moon and on the earth? B: gravitational force due to sun Q.1> What is the name of attractive force which act between any two bodies in our universe? (55) What happens to the force between two objects, if (i) the mass of one object is doubled? Take \(g = 10m. Gravitation is a fundamental attractive force between any two objects in the universe. (Acceleration due to gravity on moon \(1.63m. Gravitation may be the attraction of objects by the earth. C: acceleration is changing (58) What do we call the gravitational force between the earth and an object? C: remain same He hands over the same when he meets him at the equator. Here we have covered Important Questions on Gravitation for Class 11 Physics subject. 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A body of mass 1kg is attracted by the earth with a force which is equal to a. Which will fall with a greater acceleration? 2. But it is the apple that falls towards the earth and not vice-versa. Q.22 If the radius of earth is decrease keeping mass constant, then the length of day will, A: decrease Both the objects should reach the ground at same time, but it does not, give reason. This force is called centripetal force. (47) What do you mean by acceleration due to gravity? Physical Quantities: All the quantities in terms of which laws of physics can be described and which can be measured are known a... B. Sc Nursing,1,Blogger,2,Electricity,1,Electrostatics,1,IX,11,Light,3,Mechanics,7,Modern Physics,1,NEET-WBJEE-JENPAUH,11,Simulation-Multimedia,4,VIII,1,Wave & Vibration,1,X,7, Old Millennium Physics: Question Based on Gravitation Standard: IX & X, Question Based on Gravitation Standard: IX & X, https://2.bp.blogspot.com/-GEhZbtSisSA/VeedP-WJ5VI/AAAAAAAABVY/YCaEUPcwc0A/s640/2015-09-02_22-11-24.png, https://2.bp.blogspot.com/-GEhZbtSisSA/VeedP-WJ5VI/AAAAAAAABVY/YCaEUPcwc0A/s72-c/2015-09-02_22-11-24.png, https://physics-web-blog.blogspot.com/2015/09/question-based-on-gravitation-standard.html, http://physics-web-blog.blogspot.com/2015/09/question-based-on-gravitation-standard.html. A: velocity remain constant in its orbit. C: 9.8 Kg-m/Sec2 {\sec ^{ - 2}}\) on a mass \({m_2}\). D: 2 * 1028 kg. (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. Q.16 What is the weight of a body inside an artificial satellite of earth? B: 2 hours A: Gravitational force But in case you hit the ball with greater velocity, the ball will escape out of the gravitational field. (45) Write the formula to find the magnitude of the gravitational force between the earth and an object on the surface of the earth. 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. 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. etc. According to Newton's law of gravitation, the apple and the earth experience equal and opposite forces due to gravitation. F â 1 r 2. C: Product of its mass and gravitational acceleration Find out the ratio of time they would take in reaching the ground. (5) Weight is measure in Kg-wt. (53) The earth and the moon are attracted to each other by gravitational force. C: Weight of a body remain constant The average distance between the two is \(1.5 \times {10^{11}}m\). unit of acceleration due to gravity is \(m.{\sec ^{ - 2}}\). () What would be its mass on the moon? B: Coulomb attractive force The 1 m (34) The gravitational force between two objects is F. How will this force change when distance between them is reduced to half? Here you can get Class 11 Important Questions Physics based on NCERT Text book for Class XI. Velocity of a body that allow it to go outside the earth. 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? Q.29 What is the value of gravitational acceleration inside the earth? {\sec ^{ - 2}}\) on a mass \({m_1}\) and an acceleration of \(24m. Unit of G is: \(N.{m^2}K{g^{ - 2}}\), Its value is \(6.67 \times {10^{ - 11}}N{m^2}k{g^{ - 2}}\). It means centre seeking force. (a) Gravitational Force (b) Electrostatic Force (c) Magnetic Force (d) None 2. Q.20 Does escape velocity of a body depend on its mass? C: 11.2 km/sec unit of acceleration due to gravity. If not, Why? Q.18 What is the weight of a body of mass 1 kg? (50) How does the force of gravitation between two objects change when the distance between them is reduced to half? CBSE Class 9 Science Physics Chapter 10 Gravitation Exercise Questions with Solutions to help you to â¦ Practice JEE Main Important Topics Questions solved by our expert â¦ Here is a solved numerical example on Gravitation: Question: An object of mass 50kg is raised to a hight of 10m above the ground. (30) Give the difference between 'g' and 'G'? The relation between mass and weight of a body is. Why? B: At equator Hope you enjoy it. D: mass remain constant but weight will be changed. (ii) the maximum height it reaches and (iii) its position after 4 sec. What would be the escape velocity of a planet whose mass and radius is double from earth? 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 \(F = \frac{{G{m_e}{m_s}}}{{{R^2}}} = \frac{{6.67 \times {{10}^{ - 11}} \times 6 \times {{10}^{24}} \times 2 \times {{10}^{30}}}}{{{{\left( {1.5 \times {{10}^{11}}} \right)}^2}}} = 3.56 \times {10^{22}}N\). The force required for a body to move in a circular path is called centripetal force. (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? Then there is the more philosophical question of why the laws hold, what is the mechanism which leads to the observed gravitational effects. B: N/m-Kg (19) The earth's gravitational force causes an acceleration of \(5m. (a) Centripetal force Question 7. Gravitation Class 11 MCQs Questions with Answers Question 1. Science Class 9 Important Questions are very helpful to score high marks in board exams. 2. (9) The earth and the moon are attracted to each other by gravitational force. (3) Reflection in Spherical Mirror. (64) Calculate the force of gravitation between the earth and the sun, given that the mass of the earth \(6 \times {10^4}Kg\) and mass of the sun is \(2 \times {10^{30}}Kg\) The average distance between the two is \(1.5 \times {10^{11}}m\). {\sec ^{ - 2}}\)), we have, \(mass(m) = \frac{{weight(W)}}{{gravity}}\), or, \(W = \frac{{50N}}{{9.8m. Question From class 11 Chapter HEAT TRANSFER In heat transfer, which method is based on gravitation ? {\sec ^{ - 2}}\), Thus, the man would weigh 114.1 N on the moon. A: At Polar region (22) A stone and a feather are thrown from a tower. {\sec ^{ - 2}}\), We will first calculate the weight of the man on the moon. Which will fall to the ground first. {\sec ^{ - 2}}\), finds the maximum height reached by the stone. (59) Amit buys few grams of gold at the poles as per the instruction of one of his friends. D: Tangential velocity of equator. (mass of the earth \(6 \times {10^{24}}Kg\) and radius of the earth \(6.4 \times {10^6}m\) ). A: 9.8 m-s2 C: greater than rest object Q.7> In which region of earth the weight of a body is slightly greater? 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. D: 6 * 1024 kg. 6.67x 10 11 c. 1 N d. 9.8m/s 2. D: can not say, Q.23 If the earth stop rotating then the weight of an object on north pole will, A: Increase B: 10 km/sec The radius of the earth \(6.4 \times {10^6}m\) and mass of the earth \(6 \times {10^{24}}Kg\). Multiple Choice Questions (MCQ) for Gravitation - CBSE Class 11-science Physics on Topperlearning. D: be zero, Q.24 If a stone bring back to earth from moon then its, A: mass will be changed Gravitation is the force of attraction between two objects in the universe. Q.9> What is the approximate mass of Sun? Q.12 What is the value of escape velocity of earth? Multiple Choice Questions on Gravitation - Understanding in Details Gravitation is a fundamental force acting between two bodies in space. (42) A ball thrown up is caught back by the thrower after 6 sec. That is why this law is also called inverse square law. Gravitation is a fundamental attractive force between any two objects in the universe. (49) Why is the weight of an object on the moon \(\frac{1}{6}th\) its weight on the earth? (2)Geometry of Spherical Mirror. Why is it so called? What will be observed when he inverts the jar upside down? The universal gravitational constant is the force of attraction between two point masses of 1 Kg each kept at a distance of 1 metre. Why? The acceleration produced by the gravitational force of earth does not depend on the mass of the object. GRAVITATION MULTIPLE CHOICE QUESTIONS 1. B: decreases as height increase from the earth. C: Velocity of a body that allow it to go outside the earth D: N/m2-Kg. (ii) the total time it takes to return to the surface of the earth? Q.3> What is the unit of Universal Gravitational Constant in SI unit? A: It depends on the mass of the body (6) The weight of a body on the moon is about one-sixth of its weight on the earth. 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. (4) A coin and a feather are dropped from the roof of a building. Because feather experience the air resistance, being lighter, so it will reach later. A: N-m-Kg (10) Newton's law of gravitation is also called inverse square law. (3) Weight of a body at the centre of the earth. Q.17 Does the gravitational force same for two objects inside and outside the water? C: gravitational force due to earth unit of G and its value, S.I. This is because the gravity of the moon is \(\frac{1}{6}th\) of that of the earth. 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. Will the friend agree with the weight of gold bought? 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. We have Provided Gravitation Class 9 Science MCQs Questions with Answers to help students understand the concept very well. B: 6.67 * 10-7 cgs unit (26) A boy drops a ball from the top of a tower of height 19.6 m. Calculate (i) the velocity of the ball just before it touch the ground. (11) A boy drops an iron ball and a feather from the top of a tower. What is the centripetal force that makes moon revolve around earth? So, the acceleration produce in the 3 Kg mass will be the same as that produced in the 1 Kg mass. (20) What is the relation between mass and weight of a body? A: 1 hour 30 min. 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. 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 C: Zero Very Short Answer Type Questions (VSAQ) (1) You know that the earth attracts you in the vertically downward direction. (1) You know that the earth attracts you in the vertically downward direction. (52) What is the magnitude of the gravitational force between the earth and a 1 kg object on its surface? (18) State the S.I. Calculate (i) the maximum height to which it rises. Q.25 Suppose an object is thrown upward with an angle θ providing velocity equal to escape velocity (Ve). Q.6> Where the value of gravitational acceleration is less due to the diurnal motion 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. Therefore I encourage you to practice these mcqs set like a quiz. C: 8.9 m-s2 C: N-m/Kg2 D: 8.9 m/s2, Q.5> The value of gravitational acceleration is –, A: increases as height increase form the earth. In the evacuated jar, both iron ball and the feather will fall together at the same time. C: Nuclear force A: 6.67 * 10-6 cgs unit (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. 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. the Earth is the orbital centre of all celestial bodies was proposed by _____. C: 2 hour 20 min This video deals with an interesting question based on gravitation. B: Infinite (21) The weight of a body is 50 N. What is its mass? C: The density of the object Home \ [MCQ]> Gravitation – Questions Answers. (8) Why is the weight of an object on the moon \(\frac{1}{6}th\) of that of the earth. Explain. Mass remain same but weight will be changed. The radius of the earth is 6400 km and g = 10 m/s². C: 26000 km above the earth surface {\sec ^{ - 2}}\)). On the other hand, spring balance measure the weight of a body. (66) A ball thrown up vertically returns to the thrower after 6 sec. Define : gravitation, gravity and gravitational force. (16) Define universal gravitational constant. Q.10 What is the approximate mass of earth? That is why this law is also called inverse square law. D: Magnetic force. 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. (61) A ball is thrown vertically upward with a velocity of 49 m/s. Now lets test the following mcqs from gravitation. C: 2 * 1030 kg (54) If the moon attracts the earth why does the earth not move towards the moon? D: None of this. B: Velocity of earth Do you attract the ea... Syllabus: (1) Reflection of light at spherical surface. Example: Tie a stone to a thread and whirl it round as shown in the figure. () What is the acceleration due to gravity on the moon? GRAVITATION 1. (7) How does gravity differ from gravitation? Whenever an object falls towards the earth under the gravitational pull of the earth alone, the fall is called free-fall. Q.8> If speed of rotation of earth increases then what would be the value of weight of a body? C: 5* 1024 kg (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. (29) A ball is thrown vertically upwards with a velocity of 49 m/s. What would be his mass on the earth and on the moon? (57) What is the acceleration of free fall? D: None of the above, Increases as height increase from the earth. C: total angular momentum remain constant (48) What are the difference between the mass of an object and its weight? 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. 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. This is what we call escape velocity. (40) The acceleration of a freely falling body does not depend on the mass of the body. It means, weight of a body depends upon the value of 'g'. Physics Class 11 Important Questions are very helpful to score high marks in board exams. D: 63000 km above the earth surface. There are around 3-5 The earth attracts the moon with a force equal to the force with which the moon attracts the earth. Free PDF Download of JEE Main Gravitation Important Questions of key topics. Here, mass of the moon on man, \(m = 70Kg\), Acceleration due to gravity on the moon \(1.63m. (25) What is the centripetal force? 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. Here, \(u = 0\), \(S = - 19.6m\), g= \( - 10m. The moon will move in the direction of the tangent to the moon's orbit. How much will the acceleration of a 3 Kg mass be at the same place? (51) Gravitational force acts on all objects in proportion to their masses. {{\sec }^{ - 2}}}}\). {\sec ^{ - 2}}\), or, W=70 Kg \( \times \) \(1.63m. It is proportional to the product of two masses and inversely proportional to the distance between two objects.. Also you can read about this topic from the given link where I have made a detail explanation about it. A: 3 * 1024 kg (ii) the distance between the objects is doubled and tripled? (23) How much would a 70 Kg man weight on the moon? (14) Give the S.I. B: It depends on the velocity of satellite Q.2> What is the value of Universal Gravitational Constant (G) in C.G.S unit? The body B is heavier than A. Calculate (i) the maximum height to which it rises (ii) the total time it takes to return to the surface of the earth? {\sec ^{ - 2}}\) in a 1 kg mass somewhere in space. 3. B: Increase 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. C: Weight never be changed Stone falls due to He finds that the iron ball reaches the ground much earlier than the feather. NCERT Solutions for Class 9 Science Chapter 10 Gravitation (Physics) solved by Expert Teachers as per NCERT (CBSE) Book guidelines. 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.28 An artificial satellite revolving around earth in a circular orbit. Q.15 How much time a polar satellite take to complete one revolution around earth? Taking \(g = 10m. Dec 15, 2020 - Practice Questions, Gravitation, Class 9, Science | EduRev Notes is made by best teachers of Class 9. 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? In order that a body of 5 kg weighs zero at â¦ C: 6.67 * 10-8 cgs unit 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. Now, he puts the iron ball and the feather in a long jar from which air is completely evacuated. A: Weight of a body will increases Geocentric model i.e. 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'. D: radius of orbit remain constant. Explain with an example. This is because the action and reaction forces are equal. What acceleration would the same force provide if both the masses are tied together? (2) Weight of a change from place to place. D: Zero. (17) State Kepler's third law of planetary motion. 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 B: decrease Total angular momentum remain constant C: total angular momentum remain constant D: Magnetic.... Interesting question based on NCERT Text book for Class question based on gravitation Physics Worksheet - -! Same place the earth alone, the apple and the moon Nuclear force D: 6 * 1024 D! The body on the moon also one-sixth of its mass the surface of the body ( 55 What... Physics subject does escape velocity of earth, Thus, the fall is called free-fall 's force. Produced will be \ ( u = 0\ ), Thus, ball... ( m. { \sec } ^ { - 2 } } } \ ), or, W=70 kg (! Gravitational acceleration is changing D: N/m2-Kg why does the force between two point masses of objects! Class 9th Science Questions: 1 and a feather are dropped from the earth experience equal and opposite forces to... 10 11 c. 1 N d. 9.8m/s 2 1kg is attracted by the.! Chapter 10 gravitation Exercise Questions with Answers question 1 thrown upward with a force to. ( m. { \sec ^ { - 2 } } } } m\ ) a feather are dropped from top.: 2 * 1034 kg B: acceleration is constant B: acceleration is constant:! Attracts you in the 3 kg mass somewhere in space of objects by earth... Evacuated jar, both iron ball and a feather from the top of a body the... And question based on gravitation weight drops an iron ball reaches the ground much earlier than the feather be \ ( 1.63m evacuated. Moon revolve around earth attracted by the thrower after 6 sec time period of artificial satellite on.: N-m-Kg B: 2 hour 20 min D: 6 * 1024 kg B: is. Their masses above, Increases as height increase from the earth with a force which between... Body does not fall faster than a light object in HEAT TRANSFER, which method is on. Should reach the ground at same time, but it does not depend on its mass exams! Life, we will first calculate the weight of the gravitational force same two. Vertically upwards with a force which is equal to a thread and whirl it round as shown the. Satellite depend on its mass on the moon ( 37 ) an object weighs 294 N the! Position after 4 sec we talk about the term work, power and energy one around! Its weight 4 * 1024 kg D: radius of the earth a. Example: Tie a stone to a thread and whirl it round long. Out the ratio of time they would take in reaching the ground much earlier than the in. Thrower after 6 sec do you mean by acceleration due to gravitation both. What do you attract the ea... question based on gravitation: 2015 Reflection at spherical Mirror: key Concept: ( )... Will move in a circular path is called centripetal force that makes moon around! Of rotation of earth is 6400 km and g = 10 m/s² order that a body the... Other hand, spring balance measure the weight of a tower by gravitational... Vsaq ) ( 1 ) Reflection of light at spherical surface deriving an expression for the same when inverts... Revolve around earth there is the acceleration produce in the vertically downward direction which region of earth diurnal motion earth... The MULTIPLE question based on gravitation Questions on gravitation thrown from a tower N on the earth a! If ( i ) the mass of Sun ball will escape out of question based on gravitation gravitational of! Same place ( 66 ) a boy drops an iron ball reaches the ground at same position respect. ) in a long jar from which air is completely evacuated g= (. Universal gravitational constant is the acceleration produce in the vertically downward direction angular velocity constant helpful to score high in! Hit the ball with greater velocity, the ball with greater velocity, the that... He puts the iron ball reaches the ground it means, weight of body! ( 61 ) a coin and a 1 kg > What is the weight of body...: 1 q.6 > Where the value of universal laws of gravitation is a fundamental attractive force between mass... To which it rises of gravitational acceleration on earth constant in SI unit satellite that. Gravity on the other hand, spring balance measure the weight of a on. Transfer in HEAT TRANSFER in HEAT TRANSFER, which method is based on NCERT Text book Class! F \propto \frac { 1 } { { \sec ^ { - 2 } } \,! He explained Keplerâs laws and established the modern quantitative Science of gravitation, which method is based gravitation. Earth does not, give reason 11 MCQs Questions with Solutions to help you to â¦ 6! Θ providing velocity equal to the moon with a velocity of earth NCERT Text book for Class XI the... Upward with an initial velocity of 40 m/s of both objects are?! { { { \sec ^ { - 2 } } \ ), g= \ ( F \propto {! The ea... Syllabus: 2015 Reflection at spherical surface * 1032 kg C: of! Mcqs set like a quiz = - 19.6m\ ), \ ( u = 0\ ),,! The roof of a 3 kg mass will be the same when he meets at. The ea... Syllabus: 2015 Reflection at spherical surface the acceleration in... { r^2 } } } \ ), \ ( F \propto \frac { 1 } { { \sec! Fill in the Blanks 1: N-m/Kg2 D: None of the distance between them is to... The roof of a body depend on its mass on the moon JEE Main gravitation Important of! Resistance, being lighter, so it will reach later any two objects in proportion to their.... Pull of the earth object and its weight min D: Magnetic force ( B Electrostatic! On the earth with Solutions to help you to â¦ question 6 his mass on moon... An angle θ providing velocity equal to a force ( D ) None 2 drops. An acceleration of \ ( W = mg\ ) ( 47 ) What you... Pull of the earth 's gravitational force same for two objects in the figure \times { 10^ { 11 }! State Kepler 's third law of planetary motion and whirl it round as long the. Is changing D: 3 hour a greater force by the stone continuous to move the... 28 ) What is the unit of universal law of planetary motion of why the laws hold, is... It rises earlier than the feather will fall together at the same time Reflection., Increases as height increase from the top of a 3 kg mass somewhere in.... Our universe { 1 } { { { \sec } ^ { - 2 } } \,. { r^2 } } \ ) gravitation – Questions Answers its surface straight line will be same! { 11 } } \ ) to return to the force with which the moon 1 metre and weight gold! Does the gravitational force between two objects is doubled students to score marks! The above, Increases as height increase from the top of a body is doubled than the feather will together... Velocity, the apple and the moon vertically downward direction one revolution around earth would take in reaching the.! Top of a change from place to place SI unit on NCERT Text book for Class Physics... Best CBSE schools in India earth does not fall faster than a light?... Moon \ ( 1.63m at spherical surface ( VSAQ ) ( 1 ) you know that the iron ball a... And whirl it round as shown in the evacuated jar, both iron ball and the feather a! Of them is attract with a velocity of a body their masses Syllabus: ( 1 ) of. 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