Force Extension Graph For Metal Wire. Start date Dec 14 2020. You may assume that there is 100 transfer of energy from the spring to the trolley2Extension 9 The force-extension graph for a length of metal wire is shown belowa The gradient of the graph is equal to the spring force constant k of the wire.
Extension force strain stress 0 0 0 0 The Young modulus for this wire is equal to A the gradient of the force-extension graph. An increasing force acts on a metal wire and the wire extends from an initial length l0to a new length l. The force-extension curve for the wire will follow the line OAB on the graph in Figure 2 where the area OABDO is the energy input OCBD the recoverable energy and the shaded area OABCO represents the energy converted to heat within the specimen.
The larger this area the bigger is the energy loss due to hysteresis.
Each wire has a cross-sectional area of 24. Sep 07 2019 The graph below shows how the force applied to a metal wire is related to the extension of the wire. E elastic strain energy in joules J F force in newtons N D L change in length in metres m. As the graph of Force vs extension is no longer linear.
