Difference between revisions of "1.3 (c)"
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(New page: =Demonstration= Stretching a long piece of (copper) wire. From this you can, if you are careful and precise, get data to show aspects like the yeild point. You can also use other material ...) |
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Stretching a long piece of (copper) wire. From this you can, if you are careful and precise, get data to show aspects like the yeild point. You can also use other material to compare with copper. | Stretching a long piece of (copper) wire. From this you can, if you are careful and precise, get data to show aspects like the yeild point. You can also use other material to compare with copper. | ||
===Resources=== | ===Resources=== | ||
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===Safety=== | ===Safety=== | ||
Safety goggles should be warn at all times. Nobody should be stood at either the pulley end or the clamped end looking along the length of the wire | Safety goggles should be warn at all times. Nobody should be stood at either the pulley end or the clamped end looking along the length of the wire | ||
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+ | [[Motion, Energy & Charge]] |
Revision as of 10:32, 26 August 2008
Demonstration 1
Stretching a long piece of (copper) wire. From this you can, if you are careful and precise, get data to show aspects like the yeild point. You can also use other material to compare with copper.
Resources
Analysis
Plot a force-extension curve for the material(s). Identify points such as the Hooke's law region, yeild point and plastic flow region.
Equipment
1x 3m of wire, 1x 2 restraining blocks, 1x clamp, 1x pulley 40x 50g masses, 1x vernier callipers, 1x tape, 1x hook
Safety
Safety goggles should be warn at all times. Nobody should be stood at either the pulley end or the clamped end looking along the length of the wire