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ICSE Class X Board Exam 2020 : Chemistry

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vrushant Mukherjee
St. Mary's ICSE School, Koparkhairane, Navi Mumbai

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ICSE Class 10 Physics Previous Year Question Paper 2016 Physics SCIENCE Paper - I Time: 2 hour Maximum Marks: 80 General Instructions: 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 paper is the time allotted for writing the answers. Section I is compulsory. Attend any four questions from Section II. The intended marks of questions or parts of questions are given in brackets [ ]. SECTION - I (40 Marks) Attempt all question from this Section. Question 1 (a) [2] (i) Give an example of a non contact force which is always of attractive nature. (ii) How does the magnitude of this non contact force on the two bodies depend on the distance of separation between them? (b) A boy weighing 40 kgf climbs up a stair of 30 steps each 20 cm high in [2] 4 minutes and a girl weighing 30 kgf does the same in 3 minutes. Compare: (i) The work done by them. (ii) The power developed by them. (c) With reference to the terms Mechanical Advantage, Velocity Ratio and efficiency of a machine, name and define the term that will not change for machine of a given design. [2] (d) Calculate the mass of ice required to lower the temperature of 300 g of water 40oC to water at 0oC. [2] o (Specific latent heat of ice = 336 J/g, Specific heat capacity of water = 4.2J/g C) (e) What do you understand by the following statements: (i) The heat capacity of the body is 60JK-1. (ii) The specific heat capacity of lead is 130 Jkg-1K-1. [2]

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