Physics · Oct / Nov 2023 · Paper 41 · Question 2
0625
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The question as text
A copper cooking pan contains water. Fig. 2.1 shows the pan on a hotplate of a cooker. Fig. 2.1 Copper is a metal.
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2(a)[3]
any three from:
free / delocalised / mobile electrons(electrons) gain (thermal) energy from hotplate / particles(electrons) move through(out) copper / metal OR (electrons) move to distant particleselectrons transfer energy from higher temperature (region) to lower temperature (region) OR (electrons) collide with (distant) particles / transfer energy to (distant) particles2(b)[2]
(shiny surfaces are) poor emitters of radiation
reduces energy loss (from the pan / copper) OR less energy transferred to surroundings
2(c)[1]
convection
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