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|, CLASS ~1X, , SCIENCE, , CHAPTERTI, WORK AND ENERGY, , ASSIGNMENT:, , Q1, What is the work done when a body is moved horizontally along a frictionless surface?, , Q2. Define 1 Joule., , 3, What is the work done on a body moving in a circular path?, , 4, When is work said to be done against the force of gravity?, , Q5. A force acting on a 20 kg mass changes its velocity from Sm/s to 2 m/s. Calculate the, work done?, , Q6.A person holds a body of mass 20 kg over his head for 10 sec. Has he done any, work? Justify your answer.ork done?, , Q7. |s it possible that a body be in accelerated motion under a force and no work is being, done by the force?, , Q8, Work done by moon in moving around earth-A. +ve B.) -ve, C.) zero D.) unknown,, , Q9.Work is measured as product of- A)Force and time B). Force and displacement C)Power, and displacement D),Force and acceleration, , Q10.. Value of gis - A. 9.8 mV/s B. 9.8 cm/s? C, 9.8 m/s2_D. 9.8 cm/s, }