Transferring Electrical Energy Worksheet Page 16
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46(iii)
Before buying a washing machine, a householder researched several makes to find
out which washing machine was the most energy efficient.
Write down one way that he could have done this research.
...........................................................................................................................
...........................................................................................................................
(1)
(Total 5 marks)
Q11.
A householder was out shopping when her electricity meter reading should have been
taken. The electricity company estimated the reading and sent the following bill. Unfortunately,
the bill was damaged in the post.
(a)
Use the equation in the box to calculate the cost of the electricity used between 12 June
and 13 September.
total cost = number of kilowatt-hours × cost per kilowatt-hour
Show clearly how you work out your answer.
....................................................................................................................................
....................................................................................................................................
Total cost = .................................................
(2)
Page 16 of 46
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