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ICSE Board 2008 CLASS X PHYSICS Solved

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ICSE Board 2008 CLASS X PHYSICS Maximum Marks: 80 Time: One hour and a half 1. Answer to this Paper must be written on the paper provided separately. 2. You will not be allowed to write during the first 15 minutes. This time is to be spent in reading the Question Paper. 3. The time given at the head of this Paper is the time allowed for writing the answers. 4. Section I is compulsory. Attempt any four questions from Section II. 5. 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) Name the SI unit of : (i) linear momentum (ii) rate of change of momentum. [2] (b) A body of mass 1.50 kg is dropped from the 2nd floor of a building which is at a height of 12 m. What is the force acting on it during its fall? (g=9.80m/s 2).[2] (c) When an arrow is shot from a bow, it has kinetic energy in it. Explain briefly from where does it get its kinetic energy? [2] (d) What energy conversations take place in the following when they are working (i) Electric toaster, (ii) Microphone? [2] (e) Copy the diagram of the forearm given below, indicate the positions of Load, Effort and Fulcrum. [2] Answer 1.

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