Physics Sec Sample Paper I Worksheet - University Of Malta, 2012 Page 8

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7.
During the last months, the cost of non-renewable sources of
energy such as oil and its derivatives has increased substantially, at
times reaching record values.
(a)
Describe the difference between renewable and non-renewable sources of
energy.
_____________________________________________________________________
_____________________________________________________________________
(2)
(b)
Governments are being encouraged to use renewable sources of energy instead
of fossil fuels because they have a positive effect on the environment. Give
two reasons why renewable sources of energy have a positive effect on the
environment.
_____________________________________________________________________
_____________________________________________________________________
(2)
(c)
Mention two things that you can do as a student to reduce the consumption of
fossil fuels.
1.
_________________________________________________________
2.
_________________________________________________________
(2)
(d)
You are called to advise the Minister for the Environment about the
introduction of renewable sources of energy in Malta. Identify two types of
renewable sources of energy you would suggest and explain why you think
each type is particularly suitable for the Maltese islands.
Type of Renewable source of energy
Why it is suitable for Malta
(4)
Page 8 of 11

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