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Q3.
A student does three separate experiments to investigate conduction of thermal energy
(a) In her first experiment, the student inserts four rods made of different materials into a copper disc
She puts 8 wax rings onto each rod
She then heats the copper disc with a Bunsen burner
The diagram shows the experiment after the copper disc has been heated for a few minutes
aluminium
rod
copper
rod
rings
Copper
disc
won
rod
plastic
tod
Explain what this experiment shows about conduction.