MCQ - CBSE Class 9 Science Amit buys few grams of gold at the poles as per the instruction of one of his friends. He hands over the same when he meets him at the equator. Will the friend agree with the weight of gold bought? If not, why? [Hint: The value of g is greater at the poles than at the equator.] 10/02/2023 Ajit kumar 93 Views 0 Comments Read more
MCQ - CBSE Class 9 Science What is the acceleration of free fall? 10/02/2023 Ajit kumar 87 Views 0 Comments Read more
MCQ - CBSE Class 9 Science What is the importance of universal law of gravitation? 10/02/2023 Ajit kumar 97 Views 0 Comments Read more
MCQ - CBSE Class 9 Science If the moon attracts the earth, why does the earth not move towards the moon? 10/02/2023 Ajit kumar 115 Views 0 Comments Read more
MCQ - CBSE Class 9 Science The earth and the moon are attracted to each other by gravitational force. Does the earth attract the moon with a force that is greater or smaller or the same as the force with which the moon attracts the earth? Why? 10/02/2023 Ajit kumar 93 Views 0 Comments Read more
MCQ - CBSE Class 9 Science What do you mean by free fall? 10/02/2023 Ajit kumar 94 Views 0 Comments Read more
MCQ - CBSE Class 9 Science State the universal law of gravitation. 10/02/2023 Ajit kumar 105 Views 0 Comments Read more
MCQ - CBSE Class 9 Science Multiple Choice Questions 10/01/2023 Ajit kumar 74 Views 0 Comments Read more
MCQ - CBSE Class 9 Science Two friends on roller-skates are standing 5 m apart facing each other. One of them throws a ball of 2 kg towards the other, who catches it. How will this activity affect the position of the two? Explain your answer. 10/01/2023 Ajit kumar 123 Views 0 Comments Read more
MCQ - CBSE Class 9 Science Suppose a ball of mass m is thrown vertically upward with an initial speed v, its speed decreases continuously till it becomes zero. Thereafter, the ball begins to fall downward and attains the speed v again before striking the ground. It implies that the magnitude of initial and final momentums of the ball are same. Yet, it is not an example of conservation of momentum. Explain why? 10/01/2023 Ajit kumar 80 Views 0 Comments Read more