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Podar International School (ICSE), Pimpri, Pune Prelim 1 Paper (2020-21) Std : X Subject : Physics Marks : 80 Duration : 2 hrs SECTION A (40 Marks) Attempt all questions from this Section. Question 1 i) Explain, why no tracks are left on the ice during ice skating ii) A nut is opened by a wrench of length 10cm. If the least force required is 5.0N, find the moment of force needed to 2 2 turn the nut. iii) What is the work done when the object acted upon by a force remains at rest? 2
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