Transferring Electrical Energy Worksheet Page 39
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46(c)
any two from:
the marks are for the explanation
yes plus explanation
•
less electricity / energy needed / used
accept less energy wasted
•
less (fossil) fuels burned
accept a named fossil fuel
do not accept conserving (fossil) fuels
•
less polluting gases emitted
accept a named polluting gas / greenhouse gases / carbon
emissions / reduce global warming
accept an answer in terms of nuclear fuel
eg
less nuclear fuel required (1)
less nuclear waste (1)
2
or no plus explanation
•
old freezer must be disposed of
•
hazardous chemicals inside freezer
accept CFC gases
•
(lot of) energy used in producing new freezer
[6]
M14.
(a)
electric drill C
1
MP3 player E
1
toaster B
1
(b)
(i)
2100
no unit required / ignore units
accept 2.1 kW must have units for this
1
(ii)
Y
1
(iii)
bar drawn with any height greater than Y
ignore width of bar
1
Page 39 of 46
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