This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part I) Chapter 6 Gravitation – Quiz 17 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part I) Chapter 6 Gravitation Quiz 17 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. If the distance between two objects is halved, what happens to the gravitational force between them? A) It becomes four times larger. B) It becomes half as large. C) It becomes four times smaller. D) It remains the same. Show Answer Correct Answer: A) It becomes four times larger. 2. What does "helios" mean? A) Earth. B) Center of. C) Sun. D) Moon. Show Answer Correct Answer: C) Sun. 3. A body of mass m rises to a height h = 1/5$^{th}$ of radius of Earth above the surface of Earth. The increase in its P.E is A) Mgh. B) $\frac{5}{6}mgh$. C) $\frac{4}{5}mgh$. D) $\frac{6}{5}mgh$. Show Answer Correct Answer: B) $\frac{5}{6}mgh$. 4. Earth revolves around ..... , because it has the ..... in the solar system. A) The moon; most gravitational force. B) The sun; least gravitational force. C) Jupiter; most gravitational. D) The sun; most gravitational force. Show Answer Correct Answer: D) The sun; most gravitational force. 5. Which of the following will increase the gravitational force between two objects? A) Increasing the distance between them. B) Decreasing the masses. C) Decreasing the distance between them. D) None of the above. Show Answer Correct Answer: C) Decreasing the distance between them. 6. Explain why a comet's speed changes as it travels along its orbit. A) Due to changes in its mass. B) Because of Kepler's second law, which states that a line segment joining a planet and the Sun sweeps out equal areas during equal intervals of time. C) Because of the gravitational pull from other planets. D) Due to the comet's rotation. Show Answer Correct Answer: B) Because of Kepler's second law, which states that a line segment joining a planet and the Sun sweeps out equal areas during equal intervals of time. 7. Which configuration will result in the greatest gravitational force? A) Small masses far apart. B) Large masses far apart. C) Small masses close together. D) Large masses close together. Show Answer Correct Answer: D) Large masses close together. 8. What did Isaac Newton invent in his early twenties? A) Thermometer. B) Microscope. C) Calculus. D) Telescope. Show Answer Correct Answer: C) Calculus. 9. What is the definition of gravitational force? A) Gravitational force is the force that repels two masses. B) Gravitational force is the energy produced by a mass in motion. C) Gravitational force is the force that acts only on objects in space. D) Gravitational force is the force of attraction between two masses. Show Answer Correct Answer: D) Gravitational force is the force of attraction between two masses. 10. Centripetal acceleration is the acceleration ..... A) Away from the center of the circle. B) When an object is going straight. C) Toward the center of a circle. D) That doesn't exist. Show Answer Correct Answer: C) Toward the center of a circle. 11. Gravitational potential energy depends on the strength of gravity, ..... and ..... of the object. A) Height and mass. B) Friction and movement. C) Mass and movement. D) Height and friction. Show Answer Correct Answer: A) Height and mass. 12. For a given force acceleration is inversely proportional to the mass of an object.A. The above statement is correct because F=maB.The statement is not correct because the value of g is constant. A) Option A is wrong. B) Both option A and B are wrong because the reasons given are wrong. C) Only option A is correct. D) Both A and B are correct. Show Answer Correct Answer: C) Only option A is correct. 13. The force of gravitation is directly proportional to ..... and inversely proportional to ..... A) 1)Product of masses 2)Distance squared. B) 1)Distance squared 2)Product of masses. C) 1) Distance cubed 2) Average of their mass. D) None of the above. Show Answer Correct Answer: A) 1)Product of masses 2)Distance squared. 14. Which of the following statements is most true about Newton's law of gravitation? A) It is a force that objects with big mass apply on objects with much smaller masses. B) It is a force that exists between any two bodies with mass. C) It is a force that exists between planets, stars and other heavenly bodies. D) It is a force that pushes objects around a circle in orbit. Show Answer Correct Answer: B) It is a force that exists between any two bodies with mass. 15. A child riding a merry-go-round feels a centripetal force. How would the force change if the velocity doubled (2x)? A) Decrease to one quarter (1/4). B) Decrease to one half (1/2). C) Double (2x). D) Quadruple (4x). Show Answer Correct Answer: D) Quadruple (4x). 16. ..... improved on earlier models of the telescope to identify 4 moons of Jupiter, rings of Saturn, phases of Venus, and more to become known as the "Father of Modern Observational Astronomy." A) Copernicus. B) Newton. C) Galileo. D) Ptolemy. Show Answer Correct Answer: C) Galileo. 17. The force of gravity on Jupiter is a little more than 2 times the gravitational force on Earth. If an object has a mass of 50 kg and a weight of 490 N on Earth, what would be the object's approximate mass and weight on Jupiter? A) 50 kg and 490 N. B) 100 kg and 490 N. C) 50 kg and 980 N. D) 100 kg and 980 N. Show Answer Correct Answer: C) 50 kg and 980 N. 18. Find Mercury's period around the Sun in Earth years. Use Table 1 on page 180. A) 0.240 years. B) 0.386 years. C) 0.621 years. D) None of the above. Show Answer Correct Answer: A) 0.240 years. 19. ..... keeps all objects in the solar system orbiting around the sun. A) Tension. B) Applied force. C) Gravitational pull. D) None of the above. Show Answer Correct Answer: C) Gravitational pull. 20. How does the mass of an object affect the gravitational force it experiences? A) The greater the mass, the greater the gravitational force. B) The greater the mass, the lesser the gravitational force. C) Mass does not affect gravitational force. D) Mass affects only the direction of gravitational force. Show Answer Correct Answer: A) The greater the mass, the greater the gravitational force. 21. The gravitational force between two bodies of masses m1 and m2 separated by distance r is F. State the effect on the gravitational force when both of m1and m2 increases twice. A) 2F. B) 1/2 F. C) 4F. D) 1/4 F. Show Answer Correct Answer: C) 4F. 22. When the distance between two objects increases the gravitational force between them A) Decreases. B) Increases. C) No change. D) None of the above. Show Answer Correct Answer: A) Decreases. 23. An increase in the strength of the gravitational field surrounding an object result from an increase in that object's ..... A) Orbit. B) Mass. C) Density. D) Radius. Show Answer Correct Answer: B) Mass. 24. Which of the following does not affect the gravitational force between two objects? A) Mass of the objects. B) Distance between the objects. C) Temperature of the objects. D) None of the above. Show Answer Correct Answer: C) Temperature of the objects. 25. The force of attraction between two unit point masses separated by a unit distance is called(a) gravitational potential (b) acceleration due to gravity(c) gravitational field (d) universal gravitatuional constant A) A. B) B. C) C. D) D. Show Answer Correct Answer: D) D. ← PreviousNext →Related 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 8Class 11 Physics (Part I) Chapter 6 Gravitation Quiz 9Class 11 Physics (Part I) Chapter 6 Gravitation Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books