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SAI INTERNATIONAL SCHOOL
                                                        PHYSICS
                                                        CLASS IX
                                              HOME ASSIGNMENT-23


               OBJECTIVE

               MCQ (BOARD)

               1.  Which of the following device converts chemical energy into electrical energy?

               A. Battery

               B. Loud speaker


               C. Solar Cell


               D. Electric Motor


               2. The energy transformation, which takes place when a boy after winding a toy car places it on
               the floor and the car starts moving, is
               a.  potential energy to kinetic energy

               b.  electrical energy to kinetic energy

               c.  kinetic energy to potential energy
               d.  muscular energy to kinetic energy



               SUBJECTIVE

               1. A freely falling object eventually stops on reaching the ground. What happens to its kinetic

               energy?




















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