Transferring Electrical Energy Worksheet Page 7
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46(c)
The diagram shows where heat energy is lost from a house.
(i)
Complete the sentences by choosing the correct words from the box. Each word
may be used once or not at all.
conduction
conductor
convection
electric
evaporation
insulator
The amount of heat energy lost through the windows by
....................................................... can be reduced by using thick curtains. The
curtains trap a layer of air and air is a good ................................................... .
The curtains will also stop .................................................... currents pulling
cold air into the room through small gaps in the window.
(3)
(ii)
Write down one other way of reducing heat loss from a house.
..........................................................................................................................
..........................................................................................................................
(1)
(Total 7 marks)
##
(a)
(i)
Complete the sentence by choosing the correct word from the box.
electrons
neutrons
protons
An electric current is a flow of ........................................................................
(1)
Page 7 of 46
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