can anyone could provide me some problems of the chapter - gravitation of class 9th ........ ( only question , minimum 5)
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1. Earth attracts apple from the tree and it falls on it but the earth does not move towards the apple. Why?
2. Is uniform circular motion taking place at a constant speed or constant velocity? Why?
3. Name the force which is required to maintain a body in uniform circular motion?
4. A ball is projected vertically upwards with an initial velocity of u goes to a maximum height h before coming to ground. What is the value of h?
5. Is value of ‘g’ same everywhere?
6. Find relationship between ‘g’ and ‘G’
7. During a free-fall what is the weight of a body. Give reason for the answer.
8. A stone and feather are thrown from a tower, both the objects should reach the ground at same time but it does not. Why?
9. What is the value of ‘G’, universal gravitational constant?
10. Find the value of ‘g’, acceleration due to gravity.
11. Calculate value of ‘g’ on moon.
12. Show that the weight of the body on moon =1/6 of the weight of the body in earth.
2. Is uniform circular motion taking place at a constant speed or constant velocity? Why?
3. Name the force which is required to maintain a body in uniform circular motion?
4. A ball is projected vertically upwards with an initial velocity of u goes to a maximum height h before coming to ground. What is the value of h?
5. Is value of ‘g’ same everywhere?
6. Find relationship between ‘g’ and ‘G’
7. During a free-fall what is the weight of a body. Give reason for the answer.
8. A stone and feather are thrown from a tower, both the objects should reach the ground at same time but it does not. Why?
9. What is the value of ‘G’, universal gravitational constant?
10. Find the value of ‘g’, acceleration due to gravity.
11. Calculate value of ‘g’ on moon.
12. Show that the weight of the body on moon =1/6 of the weight of the body in earth.
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