Give two useful energy conversions that occur when the drill shown in the diagram is being used - Junior Cycle Science - Question a - 2009
Question a
Give two useful energy conversions that occur when the drill shown in the diagram is being used.
(i)
(ii)
Worked Solution & Example Answer:Give two useful energy conversions that occur when the drill shown in the diagram is being used - Junior Cycle Science - Question a - 2009
Step 1
(i) Identify the first energy conversion.
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Answer
The first useful energy conversion when using the drill is from electrical energy to magnetic energy. The electric power from the outlet is transformed into a magnetic field that aids in the operation of the drill.
Step 2
(ii) Identify the second energy conversion.
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Answer
The second useful energy conversion is from magnetic energy to kinetic energy. The magnetic field created facilitates the movement of the drill, converting that energy into kinetic energy which drives the drill bit into the material.
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