This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part I) Chapter 6 Gravitation – Quiz 4 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part I) Chapter 6 Gravitation Quiz 4 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Archimede's Principle is A) Mass of the water is less than the force of buoyancy. B) The mass of water displaced by the volume of a boat is equal to to the force of buoyancy which pushes upward on the boat causing it to float. C) The volume of water which displaces the buoyancy causing the boat to float. D) Outdated and not used in science anymore. Show Answer Correct Answer: B) The mass of water displaced by the volume of a boat is equal to to the force of buoyancy which pushes upward on the boat causing it to float. 2. A spring does 5.0 J of work on a 0.10-kg ball bearing in a pinball machine. The ball's resulting speed just after leaving the spring is- A) 0.5 m/s. B) 1 m/s. C) 10 m/s. D) 15 m/s. Show Answer Correct Answer: C) 10 m/s. 3. IF THE GRAVITATION EFFECT WERE TO BE LESSER THAN THIS PRESENT EFFECT, WHICH OTHER FORCE WOULD LIKELY TO HAVE ALTERED? A) ELECTROSTATIC FORCE. B) ARCHIMEDES PRINCIPLE. C) VISCOUS EFFECT. D) NONE OF THE ABOVE. Show Answer Correct Answer: B) ARCHIMEDES PRINCIPLE. 4. When and where will two stones, one released from the top of a tower and the other projected vertically upwards from the ground, meet? A) They will meet at the top of the tower. B) They will meet at the bottom of the tower. C) They will meet in the middle of the tower. D) They will not meet. Show Answer Correct Answer: C) They will meet in the middle of the tower. 5. The value of g on earth is. A) $9.8ms^{-2}$. B) $9.8m/s^{-2}$. C) $8.6m/s^{-2}$. D) None of the above. Show Answer Correct Answer: A) $9.8ms^{-2}$. 6. The weight of an object in the coal mine, sea level, at the top of the mountain are W$_{1}$, W$_{2}$ and W$_{3}$ A) W$_{1 }$< W$_{2 }$> W$_{3}$. B) W$_{1}$ = W$_{2}$ = W$_{3}$. C) W$_{1}$ < W$_{2}$ < W$_{3}$. D) W$_{1}$ > W$_{2}$ > W$_{3}$. Show Answer Correct Answer: A) W$_{1 }$< W$_{2 }$> W$_{3}$. 7. What real-world application relies on the principles of universal gravitation? A) The design of roller coasters. B) The calculation of tides. C) The functioning of a thermometer. D) The operation of a wind turbine. Show Answer Correct Answer: B) The calculation of tides. 8. What is the value of G, the gravitational constant? A) $6.67\times10^{-11}$. B) $1.6\\times10^{-9}$. C) $6.02\times10^{23}$. D) 9.8 m/s. Show Answer Correct Answer: A) $6.67\times10^{-11}$. 9. What does Kepler's first law state about the nature of planetary orbits? A) They are circular. B) They are elliptical with the Sun at one focus. C) They are hyperbolic. D) They are parabolic. Show Answer Correct Answer: B) They are elliptical with the Sun at one focus. 10. The units for mass are ..... A) Miles, mi. B) Kilograms, kg. C) Metres, m. D) Grams, g. Show Answer Correct Answer: B) Kilograms, kg. 11. When a body is partially or wholly immersed in a liquid, the upward force acts on it which is called: A) Buoyant force. B) Presure. C) Area. D) None. Show Answer Correct Answer: A) Buoyant force. 12. Total energy of an orbiting satellite is given by ..... A) $-\\frac{GMm}{2\left(R+h\right)^2}$. B) $\\frac{GMm}{2\left(R+h\right)}$. C) $-\\frac{GMm}{2\left(R+h\right)}$. D) $\\frac{GMm}{2\left(R+h\right)^2}$. Show Answer Correct Answer: C) $-\\frac{GMm}{2\left(R+h\right)}$. 13. The acceleration due to gravity goes on decreasing with ..... in altitude of body from the surface of the Earth. A) Increase. B) Decrease. C) Equal. D) None of the above. Show Answer Correct Answer: A) Increase. 14. An ellipse is drawn around two points called A) Aphelion. B) Perihelion. C) Foci. D) Axis. Show Answer Correct Answer: C) Foci. 15. The gravitational force between two objects is: A) Directly proportional to the square of the distance between them. B) Inversely proportional to the product of their masses. C) Inversely proportional to the square of the distance between them. D) Directly proportional to the distance between them. Show Answer Correct Answer: C) Inversely proportional to the square of the distance between them. 16. Which of the following is the formula for Newton's Law of Gravitation? A) $F = G \frac{m_1 m_2}{r^2}$. B) $F = G \frac{m_1 + m_2}{r^2}$. C) $F = G \frac{m_1 m_2}{r}$. D) $F = G \frac{m_1-m_2}{r^2}$. Show Answer Correct Answer: A) $F = G \frac{m_1 m_2}{r^2}$. 17. The gravitational pull is ..... proportional to the distance between two objects A) Conversely. B) Directly. C) Pyrotechnically. D) Inversely. Show Answer Correct Answer: D) Inversely. 18. The farther a planet is from the sun, the A) Less time it will take to revolve around the sun. B) More time it will take to revolve around the sun. C) Distance does not play a role. D) None of the above. Show Answer Correct Answer: B) More time it will take to revolve around the sun. 19. The gravitational field strength at the surface of Earth is g. Another planet has double the radius of Earth and the same density as Earth. What is the gravitational field strength at the surface of this planet? A) $\frac{g}{2}$. B) $\frac{g}{4}$. C) $2g$. D) $4g$. Show Answer Correct Answer: C) $2g$. 20. A satellite revolves around the earth in an elliptical orbit. Its speed: A) Is the same at all points in the orbit. B) Is greatest when it is closest to the earth. C) Is greatest when it is farthest from the earth. D) Goes on increasing or decreasing continuously depending upon the mass of the satellite. Show Answer Correct Answer: B) Is greatest when it is closest to the earth. 21. If the gravitational force between to objects is 20 N, what is the new force if the BOTH masses are increased by 2 and the distance stay the same? A) 5 N. B) 10 N. C) 40 N. D) 80 N. Show Answer Correct Answer: D) 80 N. 22. According to Newton's Law of Gravitation, what happens to the gravitational force between two objects if the mass of one object is doubled and the distance between them remains the same? A) It doubles. B) It halves. C) It quadruples. D) It remains the same. Show Answer Correct Answer: A) It doubles. 23. A ball is thrown up, the value of g will be? A) Zero. B) Negative. C) Positive. D) Negligible. Show Answer Correct Answer: B) Negative. 24. An object weighs 100 newtons on Earth's surface. When it is moved to a point one Earth radius above Earth's surface, it will weigh A) 25 N. B) 50 N. C) 100 N. D) 400 N. Show Answer Correct Answer: A) 25 N. 25. Newton determined that the pull of Earth's gravity caused both apples and A) The moon to fall toward Earth. B) The moon to move away from Earth. C) The sun to move away from Earth. D) Stars to fall toward Earth. Show Answer Correct Answer: A) The moon to fall toward Earth. ← 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 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 10Class 11 Physics (Part I) Chapter 6 Gravitation Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books