Page 29 - SP015 Past Years PSPM Chapter 1 -5 Ver.2020
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PSPM SP015



                                          PSPM CHAPTER 4:  FORCES
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               Basic Forces and Free Body Diagram


                     UPS 2010/2011  SF017  No. 3(a)

               1.    State two differences between mass and weight of an object.                    [2 m]



                     UPS 2012/2013  SF016  No. 3(a)(i)

               2.    What is meant by static friction and kinetic friction?                         [2 m]



                     UPS 2011/2012  SF016  No. 3(a)

               3.


                                          F  push           A         B



                                                            FIGURE 4.1

                     FIGURE 4.1 shows two boxes A and B being pushed over a rough surface. Sketch a
                     free body diagram which shows the forces acting on box A.                      [4 m]



                     UPS 2012/2013  SF016  No. 3(a)(ii)

               4.




                                                           20

                                                             FIGURE 4.2

                     FIGURE 4.2 shows a block at rest on a rough inclined plane at an angle of 20 with the
                     horizontal. Sketch a free body diagram of the block.                           [2 m]





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