The diagram show how an LED (light emitting diode) flashlight works. Summerise the information by selecting and reporting the main features, and make comparisons where relevant.
The diagram illustrates the features inside an LED flashlight and some steps of how it works.
It is clear that
there are 5 main components creating a flashlight working by the energy of the batteries, as well as
a circuit
used to control the power of it.
As can be seen, the flash has a light bulb, a metal spring, and a flow of current together with
the batteries and metal switch contacts inside, all of which are covered by a plastic case. It also
includes a slide switch outside connecting to a circuit
in order to turn the light on and off.
Regarding the operation, when the torch is switched on, the circuit
linking the metal switch contacts allows the flow of electricity created by the batteries to activate it. By contrast
, as the button is pushed to the off position, the circuit
then
is broken and the line is separated, which results in the flashlight being turned off.Submitted by danphamngocha on
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Basic structure: Change the fourth paragraph.
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Vocabulary: Replace the words circuit with synonyms.
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Vocabulary: Only 3 basic words for charts were used.
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Vocabulary: Use several vocabularies to present the data in the second paragraph.
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Vocabulary: Use several vocabularies to present the data in the fourth paragraph.
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Essentional vocabulary list for IELTS Writing 7+
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