MCQ - CBSE Class 9 Science When an arrow is shot from its bow, it has kinetic energy. From where does it get the kinetic energy ? 10/03/2023 Ajit kumar 88 Views 0 Comments Read more
MCQ - CBSE Class 9 Science (For Q.1 to 5): Justify giving proper reasoning whether the work done in the following cases is positive or negative : 10/03/2023 Ajit kumar 64 Views 0 Comments Read more
MCQ - CBSE Class 9 Science A freely falling object eventually stops on reaching the ground. What happens to its kinetic energy? 10/03/2023 Ajit kumar 79 Views 0 Comments Read more
MCQ - CBSE Class 9 Science Soni says that the acceleration in an object could be zero even when several forces are acting on it. Do you agree with her? Why? 10/03/2023 Ajit kumar 70 Views 0 Comments Read more
MCQ - CBSE Class 9 Science Illustrate the law of conservation of energy by discussing the energy changes which occur when we draw a pendulum bob to one side and allow it to oscillate. Why does the bob eventually come to rest ? What happens to its energy eventually? Is it a violation of the law of conservation of energy? 10/03/2023 Ajit kumar 86 Views 0 Comments Read more
MCQ - CBSE Class 9 Science A person holds a bundle of hay over his head for 30 minutes and gets tired. Has he done some work or not? Justify your answer. 10/03/2023 Ajit kumar 70 Views 0 Comments Read more
MCQ - CBSE Class 9 Science Can there be displacement of an object in the absence of any force acting on it? Think, discuss this question with your friends and teacher. 10/03/2023 Ajit kumar 76 Views 0 Comments Read more
MCQ - CBSE Class 9 Science What is the work done by the force of gravity on a satellite moving round the earth? Justify your answer. 10/03/2023 Ajit kumar 75 Views 0 Comments Read more
MCQ - CBSE Class 9 Science Does the transfer of energy take place when you push a huge rock with all your might and fail to move it? Where is the energy you spend going ? 10/03/2023 Ajit kumar 82 Views 0 Comments Read more
MCQ - CBSE Class 9 Science What are the various energy transformations that occur when you are riding a bicycle? 10/03/2023 Ajit kumar 75 Views 0 Comments Read more