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# ICSE Class IX Board Exam 2019 : Physics

7 pages, 12 questions, 1 questions with responses, 1 total responses,    0    0
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CLASS IX PHYSICS SCIENCE Paper 1 (Two hours) Answers to this Paper must be written on the paper provided separately. You will not be allowed to write during the first 15 minutes. This time is to be spent in reading the Question Paper. The time given at the head of this Paper is the time allowed for writing the answers. Section I is compulsory. Attempt any four questions from Section II. The intended marks for questions or parts of questions are given in brackets [ ]. SECTION I (40 Marks) Attempt all questions from this Section Question 1 (a) (i) Define the least count of an instrument. [2] (ii) What is the least count of a standard laboratory micrometer screw gauge? (b) A spring balance is used to find the weight of a body X on the surface of the [2] moon. The mass of the body X is 2 kg and its weight is recorded as 3.4 N. The weight of another body Y recorded by the same balance is found to be 7.65 N. Calculate the mass of the body Y. (c) State two differences between mass and weight. [2] (d) Two pendulums P and Q have equal lengths but their bobs weigh 10gf and 20gf [2] respectively. (i) Compare their time periods. (ii) Give a reason for your answer. (e) Why do we need to run a certain distance before getting into a moving bus? This Paper consists of 7 printed pages. Physics Specimen Paper Class IX 2019 Onwards Turn over [2]

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