This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part I) Chapter 6 Gravitation – Quiz 18 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part I) Chapter 6 Gravitation Quiz 18 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The neutrino is a massless particle. Can it interact gravitationally with the Earth? A) Yes, because the Earth is big enough it can compensate for the massless neutrino. B) Yes, especially when the neutrino is near the Earth's surface. C) Yes, when the neutrino orbits around the Earth. D) No. Show Answer Correct Answer: D) No. 2. The period of a satellite in a circular orbit around a planet is independent of: A) The radius of the planet. B) The mass of the planet. C) The mass of the satellite. D) All of these. Show Answer Correct Answer: C) The mass of the satellite. 3. Two objects are attracted to each other with 4 N of gravitational force.What would the force between them be if the distance between them was cut in half? A) 2 N. B) 1N. C) 16N. D) 8N. Show Answer Correct Answer: C) 16N. 4. If I double the mass of one object without changing anything else, What would happen to the gravitational force between that object and any other object? A) Doubles. B) Quadruples. C) Cut in Half. D) $\frac{1}{4}$. Show Answer Correct Answer: A) Doubles. 5. The gravitational force is: A) A mutual force created by tension. B) A mutual force that exists due to the charge of an object. C) A mutual force that exists due to the mass of an object. D) A normal force. Show Answer Correct Answer: C) A mutual force that exists due to the mass of an object. 6. What is the escape velocity on Earth? A) 11.2 m/s. B) 112 km/s. C) 11.2 km/s. D) 1.12 km/s. Show Answer Correct Answer: C) 11.2 km/s. 7. WHAT CAUSES TINDAL WAVES IN THE SEA? A) GRAVITATION EFFECT ON THE EARTH BY MOON. B) GRAVITATIONAL EFFECT ON THE EARTH BY THE SUN. C) THE ATMOSPHERIC IMPACT OF EARTH. D) NONE OF THESE. Show Answer Correct Answer: A) GRAVITATION EFFECT ON THE EARTH BY MOON. 8. Two asteroids exert a gravitational force, F, on each other. Some time later, the asteroids are now three times as far from each other as before. Which of the following represents the gravitational force at this distance? A) F/3d. B) F/2d. C) F/6d. D) F/9d. Show Answer Correct Answer: D) F/9d. 9. An object with more mass will exert greater gravitational force than an object with lesser mass. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 10. What is the force that acts on an object moving in a circular path and is directed towards the center of the circle? A) Centrifugal Force. B) Gravitational Force. C) Centripetal Force. D) Frictional Force. Show Answer Correct Answer: C) Centripetal Force. 11. What will a negative charge do with a negative charge? A) Repel. B) Attract. C) Nothing. D) None of the above. Show Answer Correct Answer: A) Repel. 12. What is the gravitational potential energy (GPE) of a 1 kilogram book that is 1 meter above the ground? g = 9.8 m/s$^{2}$ A) 9.8 Joules. B) 1.0 Joule. C) 0.10 Joule. D) 11.8 m/s$^{2}$. Show Answer Correct Answer: A) 9.8 Joules. 13. Gravity on moon is less than the gravity on earth because A) Moon's mass is less. B) Moon's mass is more. C) Moon's mass is equal to Earth. D) Moon has no mass. Show Answer Correct Answer: A) Moon's mass is less. 14. Planets remain in orbit while falling around the sun due to their A) Tangential velocities. B) Zero tangential velocities. C) Accelerations of about 10 m/s2. D) Centrifugal forces that keep them up. Show Answer Correct Answer: A) Tangential velocities. 15. An object is thrown upward from the top of a 30 m high cliff with an initial speed of 10 m/s. Using g=10 m/s2, find the total time taken for the object to hit the ground. A) 2.65 s. B) 3.0 s. C) 3.65 s. D) 4.0 s. Show Answer Correct Answer: C) 3.65 s. 16. Mercury is the closest planet to the sun and has a mass of 3.30 x 10$^{24 }$kg. The sun has a mass of 1.99 x 10$^{30 }$kg. Mercury is 5.79 x 10$^{10}$ m away from the sun. What is the gravitation force between them? A) 1.31 x 10$^{23}$ N. B) 2.59 x 10$^{33}$ N. C) 4.12 x 10$^{27}$ N. D) 3.37 x 10$^{25}$ N. Show Answer Correct Answer: A) 1.31 x 10$^{23}$ N. 17. What role does gravity play in the formation of planets and stars? A) Gravity has no effect on the formation of celestial bodies. B) Gravity prevents the formation of matter in space. C) Gravity is essential for the accumulation of matter, leading to the formation of stars and planets. D) Gravity only influences the orbits of existing planets and stars. Show Answer Correct Answer: C) Gravity is essential for the accumulation of matter, leading to the formation of stars and planets. 18. A STONE IS RELEASED FROM THE TOP OF A TOWER OF HEIGHT 19.6m. THEN IT'S FINAL VELOCITY JUST BEFORE TOUCHING THE GROUND WILL BE. A) 384.16 m/s. B) 196 m/s. C) 19.6 m/s. D) 3819.4. Show Answer Correct Answer: C) 19.6 m/s. 19. Luke Skywalker has a mass of 13 kg and weight of 127.4 N on earth. Find his weight on the Endor moon. Acceleration due to gravity of 2 m/s/s. A) 254.8 N. B) 13 kg. C) 26 N. D) 127.4 kg. Show Answer Correct Answer: C) 26 N. 20. Two asteroids exert a gravitational force, F, on each other. Some time later, the asteroids are now 9 times as far from each other as before. Which of the following represents the gravitational force at this distance? A) F/3. B) F/9. C) F/81. D) F/4.5. Show Answer Correct Answer: C) F/81. 21. A heavy cylinder of length l is slowly taken out of a dense liquid. The weight felt as it is taken out of the liquid A) Will remain the same. B) Increases as it comes out. C) Decreases as it comes out. D) Increases till it attains the weight in air. Show Answer Correct Answer: D) Increases till it attains the weight in air. 22. If you double the mass of one object, what happens to the gravity between two objects? A) The does not change. B) It doubles the force. C) It triples the force. D) It quadruples the force. Show Answer Correct Answer: B) It doubles the force. 23. The gravitational force between two bodies A) Is always attractive. B) Is always repulsive. C) Is inversely proportional to the distance between two bodies. D) Is directly proportional to the distance between two bodies. Show Answer Correct Answer: A) Is always attractive. 24. Which real-world application relies on the principles of gravitation? A) Satellite orbits. B) Chemical reactions. C) Electric circuits. D) Photosynthesis. Show Answer Correct Answer: A) Satellite orbits. 25. If the Earth shrinks to half of its radius with mass remaining the same, the weight of an object on the Earth will A) Decrease 2 times. B) Increase 4 times. C) Decrease 4 times. D) Increase 2 times. Show Answer Correct Answer: B) Increase 4 times. ← 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