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HEAT (Sources of Heat (Natural Sources of Heat (Sun, Fire), Man-made…
HEAT
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Expansion & Contraction
Expansion
When an object gains heat, it expands
When an object expands, its volume increases but its mass remains the same
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Experiment:
- An iron ball is able to pass through a ring
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- The iron ball is not able to pass through the ring now
Heat V.S Temperature
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Temperature
the degree or intensity of heat present in a substance or object, especially as expressed according to a comparative scale and shown by a thermometer or perceived by touch.
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