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POWER SOURCES
Look at the picture below. What does it represent?
Fig.13
Vocabulary preview
Study the following words and try to use them in this topic
disposable - adj. designed to be used once or only a limited number of
times and then thrown away:
chemical – adj. relating to chemistry or chemicals produced by or using
processes that involve changes to atoms or moleculas:
They studied the
compound’s chemical structure.
recycle – v. [I,T] to put used objects or materials through a special
process so that they can be used again:
They’re studying various ways to
recycle garbage into fuel.
rechargeable – adj. able to be recharged (=filled again with electricity
when it has used all its electricity:
Rechargeable lithium ion batteries offer
good specific powers.
capacity – n, [C,U] the total amount that can be contained or produced:
The generators each have a capacity of 1,000 kilowatts.
Clarify the meaning of the following terms
storage cell, useful life, energy capacity, redox reaction, to recharge.
