This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Physics Part I > Class 11 Physics (Part I) Chapter 6 Gravitation – Quiz 11 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part I) Chapter 6 Gravitation Quiz 11 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. If the diameter of mars is 6760 km and mass $\frac{1}{10}th$ $9.8ms^{-2}$ A) $2.48ms^{-2}$. B) $34.8ms^{-2}$. C) $3.48ms^{-2}$. D) $28.4ms^{-2}$. Show Answer Correct Answer: C) $3.48ms^{-2}$. 2. What is responsible for the movement of objects in space? A) Mass. B) Gravity. C) Orbital VelocityTagsNGSS.HS-PS2-4NGSS.HS-ESS1-4. D) None of the above. Show Answer Correct Answer: B) Gravity. 3. Two students are sitting 1.50m apart. One student has a mass of 70.0kg and the other has a mass of 52.0kg. What is the gravitational force between them? A) 1.62x10$^{-7}$N. B) 9.81x10$^{-7}$N. C) 6.67x10$^{-7}$N. D) 1.04x10$^{-7}$N. Show Answer Correct Answer: D) 1.04x10$^{-7}$N. 4. How does Newton's Law of Gravitation explain the orbits of planets around the sun? A) Planets are repelled by the sun, keeping them in orbit. B) Planets move in straight lines due to gravitational pull. C) Planets are attracted to the sun by a force that decreases with distance. D) Planets are stationary due to gravitational balance. Show Answer Correct Answer: C) Planets are attracted to the sun by a force that decreases with distance. 5. WEIGHT ION THE EARTH IS 600N THEN FIND TOTAL WEIFGT ON MOON A) 500N. B) 100N. C) 450N. D) 400N. Show Answer Correct Answer: B) 100N. 6. Two brass balls of masses 2 kg and 0.5 kg experience a force of attraction of 2 N. When the distance between their centres is doubled, the force of attraction is A) 1 N. B) 2 N. C) 1/2 N. D) 1/4 N. Show Answer Correct Answer: C) 1/2 N. 7. What happens to gravity between two objects if their distance gets further apart? A) Weaker. B) Stronger. C) Does not change. D) None of the above. Show Answer Correct Answer: A) Weaker. 8. Anika and David are conducting an experiment to measure gravitational forces. They find that the gravitational force between two objects is $3.0 \times 10^{-8} \, \text{N}$ A) $3.0 \times 10^{-8} \, \text{N}$. B) $1.5 \times 10^{-8} \, \text{N}$. C) $7.5 \times 10^{-9} \, \text{N}$. D) $7.5 \times 10^{-8} \, \text{N}$. Show Answer Correct Answer: C) $7.5 \times 10^{-9} \, \text{N}$. 9. If somehow Earth started to shrink in size but kept the same mass, would would happen to the value of g on Earth's surface? A) Increase. B) Decrease. C) All the above. D) None of the above. Show Answer Correct Answer: A) Increase. 10. A ball is thrown upward with an initial speed of 25 m/s. What is its speed after 2 seconds? A) 5 m/s (downward. B) 15 m/s (upward)). C) 5 m/s (upward). D) 25 m/s (upward). Show Answer Correct Answer: C) 5 m/s (upward). 11. As the distance between two objects increases, the attraction between them ..... A) Increases. B) Decreases. C) Stays the same. D) None of the above. Show Answer Correct Answer: B) Decreases. 12. The gravitational force between two identical masses m separated by a distance r is A) Gm$^{2}$/r. B) Gm/r$^{2}$. C) Gm$^{2}$/r$^{2}$. D) Gm$^{2}$r$^{2}$. Show Answer Correct Answer: C) Gm$^{2}$/r$^{2}$. 13. Which force is always attractive? A) Magnetic. B) Electric. C) Tension. D) Gravitational. Show Answer Correct Answer: D) Gravitational. 14. Describe how gravitational potential energy is converted to kinetic energy in free fall. A) Kinetic energy is converted to gravitational potential energy during free fall. B) Gravitational potential energy is converted to kinetic energy as an object falls, increasing its speed and energy of motion. C) Gravitational potential energy remains constant as the object falls. D) An object gains gravitational potential energy as it falls, slowing down. Show Answer Correct Answer: B) Gravitational potential energy is converted to kinetic energy as an object falls, increasing its speed and energy of motion. 15. The moon falls toward Earth in the sense that it falls A) With an acceleration of 10 m/s2, as apples fall on Earth. B) With an acceleration greater than 10 m/s2. C) Beneath the straight-line path it would take without gravity. D) Above the straight-line path it would take without gravity. Show Answer Correct Answer: C) Beneath the straight-line path it would take without gravity. 16. The force of attraction due to gravity between two objects is F'. If the distance between the two objects doubles and the mass of one object triples, the new gravitational force between them will be- A) 1.5F'. B) 0.75F'. C) 2.5F'. D) 0.5F'. Show Answer Correct Answer: B) 0.75F'. 17. What is $\frac{4x}{3^2x}$ A) 4/9. B) 9/4. C) 4/3. D) 16/9. Show Answer Correct Answer: A) 4/9. 18. As distance increases, value of gravitational field strength A) Decreases. B) May increase or decrease. C) Remains constant. D) Also increases. Show Answer Correct Answer: A) Decreases. 19. If an object has MORE ..... , it will have MORE gravitational force. A) Mass. B) Distance. C) All the above. D) None of the above. Show Answer Correct Answer: A) Mass. 20. What type of orbit does the Earth have? This was proven by astronomer Johannes Kepler. A) An elliptical orbit around the moon. B) An elliptical orbit around the Sun. C) A circular orbit around the moon. D) A circular orbit around the Sun. Show Answer Correct Answer: B) An elliptical orbit around the Sun. 21. Why does a sheet of paper fall slower than one that is crumpled into a ball? A) Because the sheet of paper has a larger surface area. B) Because the sheet of paper has a smaller surface area. C) Because the sheet of paper is lighter. D) Because the sheet of paper is denser. Show Answer Correct Answer: A) Because the sheet of paper has a larger surface area. 22. What Model is where the sun is the center of the universe? A) Earth's rotations. B) Geocentric. C) Heliocentric. D) Earth's planets. Show Answer Correct Answer: C) Heliocentric. 23. Built a telescope and made discoveries which changed astronomy; discovered 4 moons of Jupiter A) Galileo Galilei. B) William Herschel. C) Aristotle. D) Claudius Ptolemy. Show Answer Correct Answer: A) Galileo Galilei. 24. Calculate the force of gravity (F) between two objects whose masses are m$_{1}$ = 100 kg and m$_{2}$ = 1000 kg if they are separared by a distance of d = 500 m. A) 1.3 * 10$^{-8}$ N. B) 0.4 N. C) 2.67 * 10$^{-11}$ N. D) 6.67 * 10$^{-11}$ N. Show Answer Correct Answer: C) 2.67 * 10$^{-11}$ N. 25. Compared to the gravitational field of Earth at its surface, Earth's gravitational field at Earth's center is A) Zero. B) Twice as much. C) .half as much. D) .three times as much. Show Answer Correct Answer: A) Zero. 26. A person dives into a swimming pool from a certain height. If it takes him 1 second to reach the surface, Find the height from he jumped. A) 4.9m. B) 19.6m. C) 9.8m. D) 7.2m. Show Answer Correct Answer: A) 4.9m. 27. This person discovered moons on Jupiter, which helped to support the heliocentric theory A) Copernicus. B) Galileo. C) Ptolemy. D) Aristotle. Show Answer Correct Answer: B) Galileo. 28. I am attracted to wooden benches ..... Gravitationally. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 29. On a ice rink two skaters of equal mass grab hands and spin in a mutual circle once every 2.5 seconds . If we assume their arms are each 0.80 m long and their individual masses are 55.0 kg, how hard are they pulling on one another? A) 2.8 N. B) 2800 N. C) 280 N. D) 28 N. Show Answer Correct Answer: C) 280 N. 30. What is the direction of the buoyant force on an object immersed in a liquid? A) Upward. B) Depends on the density of the object. C) Downward. D) Horizontal. Show Answer Correct Answer: A) Upward. 31. How far out from a mass should the gravitational field lines go ..... A) To four times the diameter of the mass. B) Infinitely far. C) To twice the diameter of the mass. D) To where the gravitational field becomes negligable. Show Answer Correct Answer: B) Infinitely far. 32. Consider a body of mass m which needs to bemoved from an orbit of radius 2R to 3R. What is the energy required? A) GmM/2R. B) GmM/(12R). C) GmM/R. D) GmM/(6R). Show Answer Correct Answer: D) GmM/(6R). 33. What happens to Gravitational force if I double both of the masses but don't change their distance? F=m$_{1}$m$_{2}$/d$^{2}$ A) Doubles. B) Half as big. C) 4x bigger. D) 4x smaller. Show Answer Correct Answer: C) 4x bigger. 34. What does G represent, and what is the value for it? A) Gravitational Inertia; 9.8 m/s$^{2}$. B) Univeral Gravitational Constant; 6.67 x 10-11 Nm2/kg2. C) Force of gravity; 9.8 m/s$^{2}$. D) Gravitational Mass; 6.67 x 10-11 Nm2/kg2. Show Answer Correct Answer: B) Univeral Gravitational Constant; 6.67 x 10-11 Nm2/kg2. 35. A test car moves at a constant speed around a circular track. If the car is 48.2 m from the track's center and has a centripetal acceleration of 8.05 m/s$^{2}$, what is the car's tangential speed? A) 0.17 m/s. B) 5.99 m/s. C) 19.7 m/s. D) 388.01 m/s. Show Answer Correct Answer: C) 19.7 m/s. 36. Kepler's third law can be applied to any two bodies as long as they are orbiting around a single common body. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 37. Which Scientist drew the conclusion that the force that causes objects to fall to Earth is the same force that causes planets to stay in orbit with the Sun? A) Tycho Brahe. B) Isaac Newton. C) Galileo Galilee. D) Albert Einstein. Show Answer Correct Answer: B) Isaac Newton. 38. The weight of a body is 120 N on the earth. If it is taken to the moon, its weight will be about (a) 120 N (b) 60 N (c) 20 N (d) 720 N A) B. B) D. C) C. D) A. Show Answer Correct Answer: C) C. 39. What variable do "Newtons" represent? A) Distance. B) Electrostatic Charge. C) Mass. D) Force. Show Answer Correct Answer: D) Force. 40. An artificial satellite is revolving round the earth in a circular orbit. Its velocity is half the escape velocity. Its height from earth's surface is A) 3200 km. B) 12800 km. C) 1600 km. D) 6400 km. Show Answer Correct Answer: D) 6400 km. 41. What do we call the gravitational force between the earth and an object? A) Mass. B) Weight. C) Thrust. D) Pressure. Show Answer Correct Answer: B) Weight. 42. The farther away a planet is from the sun, the ..... it takes it to orbit the sun once. A) Longer. B) Shorter. C) All the above. D) None of the above. Show Answer Correct Answer: A) Longer. 43. When a body is taken from the equator to the poles, its weight A) Remains constant. B) Increases. C) Decreases. D) Increases at N-pole and decreases at S-pole. Show Answer Correct Answer: B) Increases. 44. A stone is dropped from rest from a tower of height 45 m. How long does it take to hit the ground? A) 2 s. B) 6 s. C) 4 s. D) 3 s. Show Answer Correct Answer: D) 3 s. 45. The value of g on moon is ..... A) $1.6ms^2$. B) $1.6m/s^{-2}$. C) $1.6ms^{-1}$. D) $1.6ms^{-2}$. Show Answer Correct Answer: D) $1.6ms^{-2}$. 46. Calculate the velocity of an object moved around a circle with a radius of 1.65 m and an acceleration of 3.5 m/s$^{2}$. A) 3.9 m/s. B) 2.4 m/s. C) 3.6 m/s. D) 4.2 m/s. Show Answer Correct Answer: B) 2.4 m/s. 47. What are Objects that affect one another? A) Gravitational force. B) Force. C) Attractive. D) Interacting objects. Show Answer Correct Answer: D) Interacting objects. 48. David, Michael, and Liam are in a room with a perfectly polished floor (frictionless), what would happen if they each placed a block on the floor? A) The blocks would move towards each other. B) The blocks would rotate around each other. C) The blocks would move away from each other. D) The blocks would remain stationary. Show Answer Correct Answer: A) The blocks would move towards each other. 49. What factors affect gravitational force? A) Mass, distance. B) Speed, distance. C) Momentum, mass. D) None of the above. Show Answer Correct Answer: A) Mass, distance. 50. Calculate the gravitational force between a 15-kg chinchilla and a 65-kg dog which are separated by 0.30 m. A) 7.2*10$^{-7}$ N. B) 1.1*10$^{5}$ N. C) 1.3*10$^{12}$ N. D) 3.7*10$^{-8}$ N. Show Answer Correct Answer: A) 7.2*10$^{-7}$ N. 51. The gravitational force between two objects is directly proportional to A) Product of their masses. B) Reciprocal of the distance between them. C) Cube of the distance between them. D) Square of the distance between them. Show Answer Correct Answer: A) Product of their masses. 52. A boy can jump 10 m vertically on the surface of Moon, where the value of acceleration due to gravity is 1/5 of theacceleration due to gravity on the surface of Earth. How high will he be able to jump on Earth? A) 9.8m. B) 5m. C) 2m. D) 6m. Show Answer Correct Answer: C) 2m. 53. The value of acceleration due to gravity g will be maximum at A) Equatorial line. B) The centre of earth. C) The poles of Earth. D) Midway between the pole and the equator. Show Answer Correct Answer: C) The poles of Earth. 54. Kepler's second law is also known as the law of: A) Harmonies. B) Ellipses. C) Equal areas. D) Universal gravitation. Show Answer Correct Answer: C) Equal areas. 55. The value of acceleration due to gravity at the highest point of the motion of the body when a body is projected upwards A) 0 m/s$^{2}$. B) 10 m/s$^{2}$. C) 9.8 m/s$^{2}$ downwards. D) 9.8 m/s$^{2 }$upwards. Show Answer Correct Answer: C) 9.8 m/s$^{2}$ downwards. 56. What is the value of the Earth's acceleration due to gravity (g)? A) 25 m/s$^{2}$. B) 9.8 m/s$^{2}$. C) 3.14 m/s$^{2}$. D) 100 m/s$^{2}$. Show Answer Correct Answer: B) 9.8 m/s$^{2}$. 57. Which of those have highly elliptical orbits? A) Planets. B) Satellites. C) Comets. D) None of the above. Show Answer Correct Answer: C) Comets. 58. Consider two objects in space. If the distance between their centers is halved, what happens to the gravitational force between them? A) It becomes four times stronger. B) It remains the same. C) It becomes half as strong. D) It becomes twice as strong. Show Answer Correct Answer: A) It becomes four times stronger. 59. What is in the center of the Heliocentric Model? A) Sun. B) Jupiter. C) Comet. D) Earth. Show Answer Correct Answer: A) Sun. 60. According to Newton's third law of motion, what is the relationship between the forces of attraction between two objects? A) They are unrelated. B) They are equal in magnitude. C) They are directly proportional. D) They are inversely proportional. Show Answer Correct Answer: B) They are equal in magnitude. ← 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 3Class 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 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books