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Physics, 22.06.2020 18:57 kadenhisgen
5 (a) A teacher has four rods that are identical except that each is made from a
different material.
He paints 1 cm bands on the rods using a paint that changes colour when it is heated.
The paint is red when cool but changes to clear at 47°C.
1 cm
The teacher uses this apparatus to investigate the rate of conduction in
aluminium, copper, plastic and wood.
rod
hot water
(1) Describe how the teacher should perform this investigation.
You should include details of measurements taken.
(4)
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Answers: 3
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5 (a) A teacher has four rods that are identical except that each is made from a
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