Page 29 - Introduction to Physics
P. 29

5.
                  Load                   Time for 10                  Period of                 T /s  2          W/T N s      -2
                                                                                                  2
                                                                                                                       2
                   W/N                oscillations, t/s           oscillation, T/s

                    1.0                        6.7                        0.67                  0.449                2.228


                    2.0                        9.5                        0.95                  0.903                2.216

                    3.0                       11.6                        1.16                  1.346                2.229

                    4.0                       13.4                        1.34                  1.796                2.228


          The above table shows the experimental data that is obtained by a student using the
          weighted   spring oscillation system.

                 a) Name the variable that is manipulated.
                 b) Name the variable that responds.

                 c) Complete the above table with the corresponding values.
                                                              2
                 d) State the derived unit for W/T .
                                                 2
                 e) Draw the graph of T against W.
                 f) Interpret the shape of the graph that you have drawn.
                 g) Calculate the gradient of your graph.

                 h) Write relationship between the load and the period.



  Answers :

          a) Weight of load, W
          b) Period of oscillation, T

                     -3
          d) kgms / N s       -2
          f) A straight line originated from 0 and with positive gradient.

          g) 0.453 N  s
                         -1 2
               2
          h) T directly proportional with W                                                                                             29
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