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SAI INTERNATIONAL SCHOOL
                                    CLASS-IX   PHYSICS HOME ASSIGNMENT-17


               OBJECTIVE

               MCQ(BOARD)

               1.SI unit of pressure is
               (a) Pa

               (b) N
               (c) kg

               (d) Ns


               2.A rectangular wooden block has the length, breadth and height of 40 cm, 35 cm and
               10 cm, respectively. This wooden block is kept on ground in three different ways, turn
               by turn.











               Which of the following is the correct statement about the pressure exerted by this block
               on the ground?

               (a) The maximum pressure is exerted when the length and breadth form the base

               (b) The maximum pressure is exerted when the length and height form the base

               (c) The maximum pressure is exerted when the breadth and height form the base

               (d) The maximum pressure is exerted when the length and height form the base

               3. The school bags are generally provided with the broad strips because:

               (a) It will spread the force of the bag over the large area of the shoulder of the child
               producing large pressure

               (b) It will spread the force of the bag over the large area of the shoulder of the child
               producing less pressure
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