ERIC Number: EJ1059689
Record Type: Journal
Publication Date: 2015-May
Abstractor: As Provided
Reference Count: 3
A Modification to Maxwell's Needle Apparatus
Soorya, Tribhuvan N.
Physics Teacher, v53 n5 p282-284 May 2015
Maxwell's needle apparatus is used to determine the shear modulus (?) of the material of a wire of uniform cylindrical cross section. Conventionally, a single observation is taken for each observable, and the value of ? is calculated in a single shot. A modification to the above apparatus is made by varying one of the observables, namely the mass of the hollow cylinder (m[subscript h]). With this modification five sets of values of mass difference (m[subscript s] - m[subscript h]) are taken and corresponding values of difference of the squares of time periods (T[subscript 2][superscript 2] - T[subscript 1][superscript 2]) are plotted on the graph for calculating the value of ?.
Descriptors: Physics, Scientific Concepts, Science Equipment, Computation, Observation, Equations (Mathematics), Graphs, Science Instruction
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Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Authoring Institution: N/A