what is thermal expansion?
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the expansion of metals generally good conductors by heat conventional or radiant is known as thermal expansion
eg. their are gaps left between railway tracks so they don't bend when the thermally expand
eg. their are gaps left between railway tracks so they don't bend when the thermally expand
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Thermal expansion occurs when an object expands and becomes larger due to a change in the object's temperature. To understand how this happens, we need to think about what temperature actually is.
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