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Mathematics and Society - OS X Lion Server

Mathematics and Society - OS X Lion Server

Mathematics and Society - OS X Lion Server

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Materials Needed:paperHang a rubber b<strong>and</strong> with a bent paper clipfrom a support to act as a spring balance.3-••,•••~After the setup is complete add the identical weights ;one at a time <strong>and</strong> record the total stretch of therubber b<strong>and</strong>s each time.Two identical rubberb<strong>and</strong>s, about 20 identical weights (suchas fishing sinkers, machine washers ornuts), metre stick, paper clip <strong>and</strong> graphISUPPOR.T A Iv'\ETR.£.STICK- N£.'n TOTHE SET-UP TOUSE AS ASCALE.o.:. ... : 51.! PPQRT::·:...BEI,n PAPER eLlPACTS BOTf.! AS APOII\lTE:R AtvD AWEIGHT HAtvGER.A G.R.APH OF TI-11SIl\lrDRMAilOt-lWOULO LOOK.~IIv'\IL"'R. TOTHIS.Number of weights hung°1 2 3 4 5 6 7~Total stretch (cm) 0 (IIHang two identical rubber b<strong>and</strong>s over the support with the paper clip suspended.. : : .:..' ',:. from both of them as shown. As in part I add theweights one by one <strong>and</strong> record the total stretch of therubber b<strong>and</strong>s.Number of weights°1Total stretch (cm) 02 3 4 5 6 7 8 9III Change the two rubber b<strong>and</strong>s so they aretied together, hanging in t<strong>and</strong>em.Will this produce a different stretchthan both parts I & II?Add weights one by one to find out.Number of weights°1 2 3 4 5 6 7 8 9 10L...T_o_t_a_l_s_tr_e_t_c_h_(_c_m_)-L_0-L_-L_-'--_-'-_l---''---'_-L_-'-_-'--_\337

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