Heat is a form of energy whereas temperature is a measure of the hotness of an object - Junior Cycle Science - Question c - 2018
Question c
Heat is a form of energy whereas temperature is a measure of the hotness of an object.
(i) Name an instrument used to measure temperature and name a unit of tempera... show full transcript
Worked Solution & Example Answer:Heat is a form of energy whereas temperature is a measure of the hotness of an object - Junior Cycle Science - Question c - 2018
Step 1
Name an instrument used to measure temperature and name a unit of temperature.
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Answer
An instrument used to measure temperature is a thermometer. A common unit of temperature is degrees Celsius.
Step 2
Explain this phenomenon.
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Answer
The windmill rotates due to the principle of convection. When the air above the candle flame heats up, it becomes less dense and rises. As this hot air rises, it creates a flow of cooler air rushing in from the sides, causing the windmill to spin.
Step 3
Explain how a flask like this works.
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Answer
A vacuum flask works by utilizing a vacuum between the two silvered surfaces to minimize heat transfer. The silvered surfaces reflect radiant heat, preventing heat loss through radiation, while the vacuum prevents heat transfer through conduction and convection, thus maintaining the temperature of the substance inside.
Step 4
State one example of insulation that can be used in a house to prevent the loss of heat energy.
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Answer
An example of insulation that can be used in a house is attic insulation.
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