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VIBGYOR HIGH First Term Examination AY 2020-2021 SCIENCE PAPER-1 PHYSICS Grade: IX Max. Marks Date : 21/09/2020 : 80 Time Allowed: 2 hours _____________________________________________________________________ INSTRUCTIONS: The intended marks for the questions or parts of questions are given alongside the questions. Section I all questions are compulsory , Section II attempt any four questions. This paper contains 5 pages. ____________________________________________________________________ SECTION I (40 Marks) ( Attempt all questions from this section ) Q1 [10] [2] a. Define one pascal . State whether pressure is a scalar or vector quantity. b. State Archimedes principle. [2] c. Name the instrument used to control current in a circuit. Draw the circuit [2] symbol for the same. d. State Ohm s law. [2] e. A ray is incident normally on a plane mirror. [2] i. What is its angle of incidence? ii. What is the direction of reflected ray? [10] Q2 a. What is the transformation of energy that takes place when current is [2] drawn from a cell? Name a primary cell. b. Define potential difference. State its S.I unit. [2] c. Why do sea divers need special protective suit? [2] 1
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