This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Physics Part I > Class 11 Physics (Part I) Chapter 6 Gravitation – Quiz 3 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part I) Chapter 6 Gravitation Quiz 3 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What gives weight to an object? A) Gravity. B) Mass. C) Centripetal ForceTagsNGSS.HS-PS2-4. D) None of the above. Show Answer Correct Answer: A) Gravity. 2. The mass of a body on the earth surface is 40 kg. Its mass at the centre of earth will be A) Zero. B) Infinite. C) Greater than 40 kg. D) Unchanged. Show Answer Correct Answer: D) Unchanged. 3. Why does a bungee jumper feel lighter on their way down? A) Because of Lack of reaction force pushing them up as they fall. B) Because they are really weightless. C) Because their mass is negligible as they fall. D) Because they are falling at constant velocity. Show Answer Correct Answer: A) Because of Lack of reaction force pushing them up as they fall. 4. What happens to a charge when you decrease the distance? A) Increases. B) Decreases. C) All the above. D) None of the above. Show Answer Correct Answer: A) Increases. 5. The force that keeps the planets in orbit around the Sun is: A) Electrical force. B) Magnetic force. C) Gravitational force. D) Nuclear force. Show Answer Correct Answer: C) Gravitational force. 6. The gravitational force causes A) Tides. B) Motion of moon. C) None of them. D) Both a n b. Show Answer Correct Answer: D) Both a n b. 7. The energy stored in an object because of its position or state is called ..... energy A) Potential. B) Kinetic. C) All the above. D) None of the above. Show Answer Correct Answer: A) Potential. 8. THE EARTH AND MOON ARE ATTRACTED TO EACH OTHER BY A GRAVITATIONAL FORCE.THE EARTH ATTRACTS WITH A FORCE THAT IS: A) LESS THAN THAT EXCERTED BY MOON. B) NOT RELATED TO THAT EXCERTED BY MOON. C) MORE THAN THAT EXCERTED BY MOON. D) SAME AS THAT EXCERTED BY MOON. Show Answer Correct Answer: D) SAME AS THAT EXCERTED BY MOON. 9. A bus hits a bug and the bug splatters on the windshield, which force is greater? A) The Bus. B) They're the same. C) Gravity acting on the bus. D) The Bug. Show Answer Correct Answer: B) They're the same. 10. What is the relationship between mass and gravitational pull? A) Higer mass creates higher gravitational pull. B) Lower mass creates higher gravitational pull. C) Lower gravitational pull creates more mass. D) None of the above. Show Answer Correct Answer: A) Higer mass creates higher gravitational pull. 11. All planets move in elliptical orbitsaround the Sun with the Sun at one of thefoci of the ..... A) Parabola. B) Ellipse. C) Sphere. D) Circle. Show Answer Correct Answer: B) Ellipse. 12. At what point is the force of gravity on an object greatest A) The force of gravity ios the same irrespective of distance from the center of the earth. B) At twice the distance from the surface of the earth. C) At the surface of the earth. D) At the center of the earth (Core of the earth). Show Answer Correct Answer: C) At the surface of the earth. 13. A moon has a mass of $2.5 \times 10^{22}$ $5 \times 10^5$ $8 \times 10^{24}$ A) $2.67 \times 10^{18}$. B) $5.34\times10^{25}$. C) $1.34 \times 10^{18}$. D) $8.34 \times 10^{17}$. Show Answer Correct Answer: B) $5.34\times10^{25}$. 14. If the gravitational force between two objects is $F$ A) $4F$. B) $F/4$. C) $F$. D) $F/2$. Show Answer Correct Answer: B) $F/4$. 15. What factor is responsible for any object's gravity? A) Distance. B) The object's mass. C) The sun. D) Earth. Show Answer Correct Answer: B) The object's mass. 16. Gravitation is the force of ..... A) Attraction. B) Repulsion. C) Both. D) None. Show Answer Correct Answer: A) Attraction. 17. Why does a bungee jumper feel weightless on their way down? A) Because of Lack of support force as they fall. B) Because they are really weightless. C) Because their mass is negligible as they fall. D) Because they are falling at constant velocity. Show Answer Correct Answer: A) Because of Lack of support force as they fall. 18. Two objects are in a linear system with a gravitational force of $5.0 \times 10^{-10} \, \text{N}$ A) $2.5 \times 10^{-10} \, \text{N}$. B) $1.0 \times 10^{-9} \, \text{N}$. C) $7.5 \times 10^{-10} \, \text{N}$. D) $5.0 \times 10^{-10} \, \text{N}$. Show Answer Correct Answer: A) $2.5 \times 10^{-10} \, \text{N}$. 19. The radius r (the distance between the masses), is found by measuring A) From the nearest surface of one object to the other's surface. B) From the center of one mass to the center of the other's center. C) From the farthest surface of one object to the other's surface. D) None of the above. Show Answer Correct Answer: B) From the center of one mass to the center of the other's center. 20. Which of the following best describes gravitational force? A) A force that acts between any two masses. B) A force that acts only on objects in motion. C) A force that acts only on objects at rest. D) A force that acts only in a vacuum. Show Answer Correct Answer: A) A force that acts between any two masses. 21. Complete the following statement:The farther away two planets are the ..... the gravitational force between them A) Dosen't matter. B) Less. C) More. D) Same. Show Answer Correct Answer: B) Less. 22. Every object in the universe attracts every other object. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 23. A satellite moves around the earth in its orbit and does not escape from the space because the satellite A) Move with highest speed. B) Move in a vacuum. C) Always pulled by the earth gravitational force. D) Becomes weightless. Show Answer Correct Answer: C) Always pulled by the earth gravitational force. 24. What force keeps planets in orbit around the Sun? A) Friction. B) Momentum. C) Velocity. D) Gravity. Show Answer Correct Answer: D) Gravity. 25. An artificial satellite of the earth releases a package. If air resistance is neglected the package reaches the earth A) With very high speed. B) With almost zero speed. C) The package never reaches the earth. D) None of the above. Show Answer Correct Answer: C) The package never reaches the earth. 26. Nora, Maya, and Charlotte are studying physics. They come across a statement that says "every object in the universe attracts every other object" . Which law are they referring to? A) Inertia & gravity. B) Newton's Law of Universal Gravitation. C) Physics. D) Newton's First Law of Motion. Show Answer Correct Answer: B) Newton's Law of Universal Gravitation. 27. Upthrust on a body depends on A) Density of the liquid. B) Volume of the body. C) Density of the body. D) Both (b) and (c). Show Answer Correct Answer: A) Density of the liquid. 28. If one of two objects increases its mass, it ..... the gravitational pull between the two objects A) Increases. B) Eliminates. C) Has no effect on. D) Decreases. Show Answer Correct Answer: A) Increases. 29. A bicycle tire has a period of 0.3s . What is thespeed if the radius is 30 cm? A) 3 m/s. B) 6 m/s. C) 30 m/s. D) 60 m/s. Show Answer Correct Answer: B) 6 m/s. 30. If the mass of Earth were doubled, the value of g would: A) Be halved. B) Increase by four times. C) Remain the same. D) Be doubled. Show Answer Correct Answer: D) Be doubled. 31. A spring balance is graduated on sea level. If a body is weighed with this balance at consecutively increasing heights from earth's surface, the weight indicated by the balance: A) Will go on increasing continuously. B) Will go on decreasing continuously. C) Will remain same. D) Will first increase and then decrease. Show Answer Correct Answer: B) Will go on decreasing continuously. 32. What is the direction of the force exerted by the water on a bottle immersed in it? A) Depends on the shape of the bottle. B) Downward. C) Horizontal. D) Upward. Show Answer Correct Answer: D) Upward. 33. What happens to the force between two charged objects if you triple the magnitude of one charge? A) 3X. B) 1/9X. C) 9X. D) 1/3X. Show Answer Correct Answer: A) 3X. 34. What is gravitational field strength in the context of a roller coaster? A) The force that pushes objects apart. B) The force that pulls objects toward each other. C) The force per unit mass experienced by an object in a gravitational field. D) The force that changes an object's color. Show Answer Correct Answer: C) The force per unit mass experienced by an object in a gravitational field. 35. Why does acceleration (change in rate of velocity) happen when going in a circle even if you are going the same speed? A) Because direction is the same around the circle. B) Neither. C) The direction around the circle changes at every point. D) Velocity does not change. Show Answer Correct Answer: C) The direction around the circle changes at every point. 36. An object experiences zero gravitational force: A) At the center of the Earth. B) At the equator. C) At the surface of the Earth. D) At the top of a mountain. Show Answer Correct Answer: A) At the center of the Earth. 37. If the mass of a planet near the Sun were doubled, the force of attraction would A) Remain constant. B) Be squared. C) Be doubled. D) Be one half as strong. Show Answer Correct Answer: C) Be doubled. 38. When a body is thrown up, the force of gravity is (a) in the upward direction (b) in the downward direction (c) zero (d) in the horizontal direction A) A. B) D. C) B. D) C. Show Answer Correct Answer: C) B. 39. When an astronaut in orbit is weightless, he or she is A) .beyond the pull of the sun's gravity. B) Still in the pull of Earth's gravity. C) Beyond the pull of Earth's gravity. D) In the pull of interstellar gravity. Show Answer Correct Answer: B) Still in the pull of Earth's gravity. 40. The value of acceleration due to gravity at the poles A) Same as at the equator. B) Is more than at the equator. C) Is less than at the equator. D) Zero. Show Answer Correct Answer: B) Is more than at the equator. 41. Which of the following best describes the significance of the semi-major axis in Kepler's laws? A) It has no significance. B) It is the shortest diameter of the ellipse. C) It determines the color of the planet. D) It is used to calculate the orbital period using Kepler's third law. Show Answer Correct Answer: D) It is used to calculate the orbital period using Kepler's third law. 42. What is a measure of how much matter is present in a substance? A) Weight. B) Mass. C) Gravitational force. D) Force. Show Answer Correct Answer: B) Mass. 43. Jupiter is the largest plant at 1.9 x 10$^{27}$ kg and has almost 100 moons. One of its largest moons is Io at 8.93 x10$^{22}$ kg. The distance between Jupiter and it's moon is 4.217 x 10$^{8}$ m. What are the gravitational forces between them? A) 1.13 x 10$^{15 }$N. B) 5.5 x 10$^{13 }$N. C) 2.93 x 10$^{30 }$N. D) 6.4 x 10$^{22 }$N. Show Answer Correct Answer: D) 6.4 x 10$^{22 }$N. 44. How could you increase the gravitational potential energy of an object without changing its mass and gravity? A) Make the object larger. B) Lower the object towards the ground. C) Raise the object farther off the ground. D) Allow the object to roll on the ground. Show Answer Correct Answer: C) Raise the object farther off the ground. 45. Newton's law of universal gravitation had a great impact on society as many scientists, artists, writers, and philosophers hoped that A) More complex and universal laws would explain other phenomena of the world. B) Greater observations would require fewer experimentations. C) No further explanation of other phenomena of the world would be required. D) Studying other phenomena of the world would lead to just as simple and universal laws. Show Answer Correct Answer: D) Studying other phenomena of the world would lead to just as simple and universal laws. 46. A planet and a moon have a gravity force between them of F. If the planet was 3x more massive and they were moved 3x further apart. How much gravity force would there be between them? F=m$_{1}$m$_{2}$/d$^{2}$ A) 3 F. B) 1/9 F. C) 9 F. D) 1 F. E) 1/27 F. Show Answer Correct Answer: D) 1 F. 47. Calculate the gravitational force between two objects when they are 0.850m apart. Each object has a mass of 12.00kg. A) 2.22x10$^{-9}$N. B) 3.00x10$^{-6}$N. C) 2.23x10$^{-8}$N. D) 1.3x10$^{-8}$N. Show Answer Correct Answer: D) 1.3x10$^{-8}$N. 48. Which of the following Laws of Kepler did Newton use to calculate the force of attraction? A) Sun is situated at the centre of the orbit. B) The orbit of the planet is ellipse. C) The cube pf the mean distance of a planet from the sun is proportional to the square of its orbital period. D) The line joining the planet and the sun sweeps equal areas in equal interval of time. Show Answer Correct Answer: C) The cube pf the mean distance of a planet from the sun is proportional to the square of its orbital period. 49. A body of mass 20kg is placed on an area 2m$^{2}$ . find the pressure executed. A) 50 Pa. B) 98 Pa. C) 150 Pa. D) 200 Pa. Show Answer Correct Answer: B) 98 Pa. 50. Gravitational force between two objects are 400 N. If the mass of the two bodies is reduced to half, what will the force between them? A) 400 N. B) 200 N. C) 100 N. D) None of these. Show Answer Correct Answer: C) 100 N. 51. THE WEIGHT OF AN OBJECT IS: A) GREATER ON MOON AND LESSER ON EARTH. B) EQUAL ON EARTH AND MOON. C) GREATER ON EARTH AND LESSER ON MOON. D) NONE OF THESE. Show Answer Correct Answer: C) GREATER ON EARTH AND LESSER ON MOON. 52. A body of mass 1kg is attracted by the earth with a force which is equal to A) 9.8m/s. B) 6.67x1011. C) 1N. D) 9.8N. Show Answer Correct Answer: D) 9.8N. 53. Two objects are attracted to one another by a strength of force F. If one mass doubles and the other is tripled, what is the new gravitational force between the objects in terms of F? A) 1/9 F. B) 4F. C) 1/6 F. D) 6F. Show Answer Correct Answer: D) 6F. 54. What two qualities of objects does gravity depend on? A) What each object is made up of and the distance between them. B) What each object is made up of and the material between them. C) Each object's mass and shape. D) The mass of objects and the distance between them. Show Answer Correct Answer: D) The mass of objects and the distance between them. 55. The square of the period of revolution of a planet is directly proportional to the cube of A) The radius of the planet. B) The diameter of the planet. C) The mass of the planet. D) The mean distance of the planet from the sun. Show Answer Correct Answer: D) The mean distance of the planet from the sun. 56. The theory that gravitational force results from the bending of spacetime by an object's mass A) Gravitational force is created by the transfer of energy between two particles. B) Gravitational force is caused by the attraction of two objects with a strong magnetic field. C) Einstein's theory of general relativity. D) Gravitational force is generated by the movement of particles through a vacuum. Show Answer Correct Answer: C) Einstein's theory of general relativity. 57. As distance between two objects increases, the pull of gravity: A) Increases. B) Decreases. C) Stays the same. D) None of the above. Show Answer Correct Answer: B) Decreases. 58. Which single condition enables Newton's universal law of gravitation to be used to predict the force between the Earth and the Sun? A) The Earth and the Sun both have a very large radius. B) The distance between the Earth and the Sun is approximately constant. C) The Earth and the Sun both have a very large mass. D) The Earth and the Sun behave as point masses. Show Answer Correct Answer: D) The Earth and the Sun behave as point masses. 59. If the distance between two masses is doubled, the gravitational force between them ..... A) Becomes halves. B) Doubles. C) Remains unchanged. D) Becomes one-fourth. Show Answer Correct Answer: D) Becomes one-fourth. 60. All of the following statements are true. Which one follows directly from Kepler's third law? A) Venus is larger than Mercury. B) Venus has a thicker atmosphere than Mercury. C) Venus orbits the Sun at a slower average speed than Mercury. D) Venus is more massive than Mercury. Show Answer Correct Answer: C) Venus orbits the Sun at a slower average speed than Mercury. ← PreviousNext →Related QuizzesScience QuizzesClass 11 QuizzesClass 11 Physics (Part I) Chapter 6 Gravitation Quiz 1Class 11 Physics (Part I) Chapter 6 Gravitation Quiz 2Class 11 Physics (Part I) Chapter 6 Gravitation Quiz 4Class 11 Physics (Part I) Chapter 6 Gravitation Quiz 5Class 11 Physics (Part I) Chapter 6 Gravitation Quiz 6Class 11 Physics (Part I) Chapter 6 Gravitation Quiz 7Class 11 Physics (Part I) Chapter 6 Gravitation Quiz 8Class 11 Physics (Part I) Chapter 6 Gravitation Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books