Physics Assignment | Physics Experiments Questions Answers

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Added on 2020-05-28

Physics Assignment | Physics Experiments Questions Answers

Added on 2020-05-28

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Physics AssignmentStudent Name:University8th January 8, 2018

Physics Assignment | Physics Experiments Questions Answers_1

Q1:SolutionWe present the results of the experiment in the table below.Table 1: Table of resultsMass/kgLength/mChange in lengthExtensionStressStrain00.052700000.50.05280.00010.00017.86E+080.00189410.05290.00010.00021.57E+090.0037811.50.05310.00020.00032.36E+090.0056520.05320.00010.00043.14E+090.0075192.50.053250.000050.00053.93E+090.0093930.05330.000050.00064.71E+090.0112573.50.053350.000050.00075.5E+090.01312140.05340.000050.00086.29E+090.0149814.50.053450.000050.00097.07E+090.01683850.05350.000050.0017.86E+090.0186925.50.053550.000050.00118.64E+090.02054260.05360.000050.00129.43E+090.0223886.50.053650.000050.00131.02E+100.02423170.05370.000050.00141.1E+100.0260717.50.053750.000050.00151.18E+100.02790780.05380.000050.00161.26E+100.029748.50.05390.00010.00171.34E+100.0315490.053950.000050.00181.41E+100.0333649.50.0540.000050.00191.49E+100.035185100.05450.00050.0021.57E+100.036697

Physics Assignment | Physics Experiments Questions Answers_2

Young'smodulus,E=StressStrain=σE=6.2851∗1090.014981=4.1953×1011Nm−2Toughness=AreaunderthecurveToughness=12∗6.0×1010∗0.04=2.8831×108N/m2Toughness=2.8831×108N/m2From the above, we can see that the toughness of the metal is 2.8831×108N/m2The obtained value of the Young’s Modulus is close to the one given to the text book which is4.0×1011Nm−2.Q2:a)A mass of 90kg drops 8.4km onto the surface of the moon [g = 1.6m/s2]. Use energyequations to calculate its speed on impact.SolutionForce=mass∗acceleration

Physics Assignment | Physics Experiments Questions Answers_3

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