Transferring Electrical Energy Worksheet Page 34
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46(ii)
when temperatures are the same
accept a specific example eg when the temperature of the water
and mug are the same
accept radiant heat transfer will never stop
1
(b)
wood
1
(c)
(i)
conduction
rd
accept convection if not given as 3 answer
1
insulator
1
convection
1
(ii)
any one from:
do not accept any rebuilding of house
double glazing
loft insulation
accept roof for loft
1
carpets
(cavity) wall insulation
do not accept closing doors and windows
draft excluders
foil behind radiators
accept blocking chimney
paint inside walls white
[7]
M6.
(a)
(i)
electrons
1
(ii)
ammeter
do not accept ampmeter
1
must be capital A
horizontal lines not required no e.c.f.
1
Page 34 of 46
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