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Q1) Suggest an activity to show that a heated iron rod can be resersed to its original state.
Anonymous:
what is resersed?
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When a Mattel is heated , it expands because the particles in it get heat energy and their vibrations increases.
When their temperature is decreased , they return to their original state for little expands.
The wires of electric poles expands in length in summer because of high temperature and looses.
when winter comes , the wires become tight because the temperature decreases in winter.
So the heated iron rod can be reversed to its original state.
When their temperature is decreased , they return to their original state for little expands.
The wires of electric poles expands in length in summer because of high temperature and looses.
when winter comes , the wires become tight because the temperature decreases in winter.
So the heated iron rod can be reversed to its original state.
It is Reversed.
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