vernier callipers - Use these to measure the diameter of the wire, cross sectional area - Calculate this using PI r 2, Young modulus - The gradient of the stress strain graph, elastic - Returns to its original shape when load remove, plastic - permenant distortion occurs, ductile - can be drawn into a wire, brittle - material with no plastic region, hysteresis - loading and unloading follow different curves, rubber - common material that displays hysteresis, energy stored - area under the force-extension graph, breaking stress - maximum stress before breaking, compressive - posh name for squashing rather than stretching, elastic limit - beyond this point the deformation is plastic, tensile - posh word for stretching, hookes - law stating that force is proportional to extension, stress - force/area, strain - extension/original length, extension - biggest source of error in Young modulus experiment, linear - what graph looks like if limit of proportionality not reached, deformation - posh word for changing shape of something, swg - official way of describing thickness of wire, Pascals - units of stress, none - units of strain, spring constant - k, metres - units of extension,

Young modulus crossword

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