Tick the most appropriate answer IQ.1 to Q.10) 1. The gravitational force exerted by a stone on the earth produces a. no acceleration b. large acceleration. c. small acceleration. d. very small acceleration 2. The acceleration produced in a stone due to earth's gravity is a. 9.8 m/s2 b. 0.98 m/s2 c. 98 m/s2 d. 980 m/s2 a. half. 3. The earth attracts the moon with a force, E. The moon attracts the earth with force a. F12 b. 2F C. F d. 3F d. on the ground. 7. Acceleration due to gravity at the centre of the ea is b. maximum a. negative d. none of these c. Zero 8. The value of acceleration due to gravity on the mom as compared to that on the earth is b. one-sixth c. one-eighth d. one-tenth. 9. An object is dropped from a certain height. After 2 seconds, the velocity of the object will be (take g = 9.8 m/s2) a. 19.6 m/s b. 9.8 m/s c. 4.9 m/s d. 0 m/s 10. An object is thrown vertically upwards. Acceleration of the object a. increases as it goes up. b. decreases as it goes up. c. remains same as it goes up. d. becomes zero as it goes up. 11. We see only stone falling towards the earth but not the earth moving towards the stone, even when both the earth and the stone attract each other with an equal and opposite force. Why? 12. Define acceleration due to gravity. Write its Si units 13. Distinguish between the universal gravitational constant G and acceleration due to gravity 8. 14. The acceleration due to gravity on the moon is 1.61 m/s2. If the radius of the moon is 1.74 x 10 m, then calculate the mass of the moon. (Ans. 7.6 x 10 4. Every planet revolves around the sun in alan a. circular orbit. b. square orbit. c. elliptical orbit. d. rectangular orbit. 5. The value of acceleration due to gravity depends on a. mass of the body. b. shape and size of body. c. mass of the earth. d. none of these GRAVITATION The value of acceleration due to gravity will be maximum a. at the top of a mountain. b. at the top of a building. c. at the top of the tallest building. 102
Answers
Answer:
GRAVITATION
Explanation:
Tick the most appropriate answer IQ.1 to Q.10) 1. The gravitational force exerted by a stone on the earth produces a. no acceleration b. large acceleration. c. small acceleration. d. very small acceleration 2. The acceleration produced in a stone due to earth's gravity is a. 9.8 m/s2 b. 0.98 m/s2 c. 98 m/s2 d. 980 m/s2 a. half. 3. The earth attracts the moon with a force, E. The moon attracts the earth with force a. F12 b. 2F C. F d. 3F d. on the ground. 7. Acceleration due to gravity at the centre of the ea is b. maximum a. negative d. none of these c. Zero 8. The value of acceleration due to gravity on the mom as compared to that on the earth is b. one-sixth c. one-eighth d. one-tenth. 9. An object is dropped from a certain height. After 2 seconds, the velocity of the object will be (take g = 9.8 m/s2) a. 19.6 m/s b. 9.8 m/s c. 4.9 m/s d. 0 m/s 10. An object is thrown vertically upwards. Acceleration of the object a. increases as it goes up. b. decreases as it goes up. c. remains same as it goes up. d. becomes zero as it goes up. 11. We see only stone falling towards the earth but not the earth moving towards the stone, even when both the earth and the stone attract each other with an equal and opposite force. Why? 12. Define acceleration due to gravity. Write its Si units 13. Distinguish between the universal gravitational constant G and acceleration due to gravity 8. 14. The acceleration due to gravity on the moon is 1.61 m/s2. If the radius of the moon is 1.74 x 10 m, then calculate the mass of the moon. (Ans. 7.6 x 10 4. Every planet revolves around the sun in alan a. circular orbit. b. square orbit. c. elliptical orbit. d. rectangular orbit. 5. The value of acceleration due to gravity depends on a. mass of the body. b. shape and size of body. c. mass of the earth. d. none of these GRAVITATION The value of acceleration due to gravity will be maximum a. at the top of a mountain. b. at the top of a building. c. at the top of the tallest building. 102