This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part I) Chapter 6 Gravitation – Quiz 10 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part I) Chapter 6 Gravitation Quiz 10 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. An object of mass m$_{1}$ is a distance r away from a mass of m$_{2}$. If m$_{1}$ is tripled and the distance between the two objects is increased from r to 3r, what is the new gravitational force? A) F/9. B) F/3. C) F. D) 3F. E) 9F. Show Answer Correct Answer: B) F/3. 2. To convert grams into kilograms ..... A) Multiply the grams by 100. B) Divide the grams by 100. C) Multiply the grams by 1000. D) Divide the grams by 1000. Show Answer Correct Answer: D) Divide the grams by 1000. 3. What does Kepler's second law imply about the speed of a planet as it moves in its orbit? A) The speed varies, being faster when closer to the Sun and slower when farther away. B) The speed is constant throughout the orbit. C) The speed is slower when closer to the Sun and faster when farther away. D) The speed is unrelated to its position in the orbit. Show Answer Correct Answer: A) The speed varies, being faster when closer to the Sun and slower when farther away. 4. If your mass on Earth is 73 kg, what is your mass on Mars? The force of gravity on Mars is $3.71\\frac{m}{s^2}$ A) 19.7 kg. B) 28 kg. C) 73 kg. D) 193 kg. Show Answer Correct Answer: C) 73 kg. 5. The gravitational forces between two objects is 500 Newtons. If both masses triples and the distance between them doubled, calculate the new gravitational forces. A) 1125 N. B) 750 N. C) 250 N. D) 1500 N. Show Answer Correct Answer: A) 1125 N. 6. What is the significance of Kepler's third law in understanding the motion of planets? A) It relates the orbital period of a planet to its distance from the Sun. B) It describes the shape of a planet's orbit as a perfect circle. C) It explains why planets have different masses. D) It shows that the speed of a planet is constant throughout its orbit. Show Answer Correct Answer: A) It relates the orbital period of a planet to its distance from the Sun. 7. The distance between the Earth and the moon is tripled, what happens to the Fg between them? A) 1/3 bigger. B) 3 times bigger. C) 1/9 bigger. D) 9 times bigger. Show Answer Correct Answer: C) 1/9 bigger. 8. The discovery of the "Universal Gravitation" is associated with: A) Robert Hook. B) Albert Einstein. C) Isaac Newton. D) James Joule. Show Answer Correct Answer: C) Isaac Newton. 9. Why doesn't the earth move towards the moon? A) Because the moon is much smaller than the earth. B) Because the moon is moving in a circular orbit around the earth. C) Because the force of gravity between the earth and the moon is very weak. D) Because the earth and the moon are at a constant distance from each other. Show Answer Correct Answer: B) Because the moon is moving in a circular orbit around the earth. 10. The gravitational force exerted by an object depends on its A) Volume. B) Weight. C) Mass. D) Velocity. Show Answer Correct Answer: C) Mass. 11. WHAT IS THE VALUE OF UNIVERSAL GRAVITATIONAL CONSTANT ON MOON IF ITS VALUE IS G ON EARTH A) G. B) G/6. C) G/2. D) G/3. Show Answer Correct Answer: A) G. 12. If a satellite takes time T for revolution, the kinetic energy is proportional to: A) 1/T. B) $T^{\frac{2}{3}}$. C) $T^{-3}$. D) $T^{-2}$. Show Answer Correct Answer: B) $T^{\frac{2}{3}}$. 13. What can we derived from Newton's universal law of gravitation and centripetal force formula A) Formula to determine mass of the earth and the sun. B) Formula to determine the acceleration. C) Formula to determine the gravitational force. D) None of the above. Show Answer Correct Answer: A) Formula to determine mass of the earth and the sun. 14. Gravity is the force objects put on each other because of their ..... A) Mass. B) Friendliness. C) Acceleration. D) Speed. Show Answer Correct Answer: A) Mass. 15. The correct equation to show relation between G and g is: A) G=Mm/d$^{2}$. B) G=Mm/R$^{2}$. C) G=G Mm/d$^{2}$. D) G= Gm/R$^{2}$. Show Answer Correct Answer: D) G= Gm/R$^{2}$. 16. A force of attraction between objects that is due to their masses. A) Force. B) Gravity. C) Gravitational Pull. D) Weight. Show Answer Correct Answer: C) Gravitational Pull. 17. Mass and weight are different. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 18. I am not attracted to Katy Perry ..... gravitationally. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 19. The closer together the gravitational field lines ..... A) The weaker the gravitational field strength. B) The stronger the gravitational field strength. C) The more repulsive the gravitational field strength. D) None of the above. Show Answer Correct Answer: B) The stronger the gravitational field strength. 20. If the radius of Earth is reduced to half, keeping the mass unchanged, the acceleration due to gravity will: A) Increase to four times. B) Decrease to half. C) Remain unchanged. D) Decrease to one-fourth. Show Answer Correct Answer: A) Increase to four times. 21. Doubling the mass of ONE object would have what effect on the gravitational force between them? (a) A) A. the force would double. B) The force would quadruple. C) The force would stay the same. D) The force would be 1/2 as much. Show Answer Correct Answer: A) A. the force would double. 22. Consider a space probe three times as far from Earth's center. Compared at Earth's surface, its gravitational attraction to Earth at this distance is about A) One third as much. B) One half as much. C) One ninth as much. D) Zero. Show Answer Correct Answer: C) One ninth as much. 23. Tides in the ocean is caused by ..... A) Gravitational pull of the moon on earth. B) Gravitational pull of the sun on earth. C) Gravitational pull of earth on the sun and the moon. D) Both options 1 and 2. Show Answer Correct Answer: D) Both options 1 and 2. 24. Which of the following best describes the motion of planets around the sun? A) Linear Motion. B) Circular Motion. C) Elliptical Motion. D) Random Motion. Show Answer Correct Answer: C) Elliptical Motion. 25. What's the mass of a person with 49N$^\circ$ weight on Earth? A) 5kg. B) 9.8N$^\circ$. C) 7kg. D) 12.25kg. Show Answer Correct Answer: A) 5kg. ← 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 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books