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Two iron rods – one 10 m long and the other 5 m long, are heated to the same rise in temperature. Which will expand more?
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An iron washer is heated. State the effect on its external.
Give scientific reason.
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The diagram shows a sketch graph showing a change in volume of a given mass of ice at -5°C to water at 15°C.
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Solids ______ on heating and ______ on cooling.
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