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The Mercury level rises in a thermometer when the temperature increases because heat causes the mercury to expand, pushing it up the tube. Conversely, the mercury level falls when the temperature decreases because the cooler temperature causes the mercury to contract, moving it down the tube.
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What happens to the mercury in a thermometer Why?
The mercury in a thermometer expands and contracts as temperature changes. This expansion and contraction causes the level of mercury in the thermometer to rise or fall, providing a visual indication of the temperature.
Why does the mercury not fall or rise in a clinical thermometer when taken out of the mouth?
Mercury does not fall or rise in a clinical thermometer when taken out from the mouth because of the KINK present in it.
What is the construction of mercury thermometer?
A typical mercury thermometer consists of a glass tube with a bulb at one end filled with mercury. As the temperature changes, the mercury expands or contracts, causing it to rise or fall in the tube. The temperature is then read based on the level of the mercury within the graduated scale on the tube.
What does an analog thermometer measure?
An analog thermometer measures temperature by using a liquid (like mercury or alcohol) that expands or contracts with changes in temperature, which causes the level to rise or fall in a narrow tube to display the temperature.
How does temperature affect a thermometer?
Temperature affects a thermometer by causing the liquid inside (usually mercury or alcohol) to expand or contract, which in turn causes the level to rise or fall on the scale. This change in level indicates the temperature of the object or environment being measured.
What happens to the mercury in a thermometer Why?
The mercury in a thermometer expands and contracts as temperature changes. This expansion and contraction causes the level of mercury in the thermometer to rise or fall, providing a visual indication of the temperature.
Why does the mercury not fall or rise in a clinical thermometer when taken out of the mouth?
Mercury does not fall or rise in a clinical thermometer when taken out from the mouth because of the KINK present in it.
How the liquid in a thermometer changes so that it can be sued to measure temperatures?
The thermometer is a sealed glass tube containing mercury in a vacuum. The mercury column will rise or fall due to expansion, and the level is read off a temperature scale.
What is the construction of mercury thermometer?
A typical mercury thermometer consists of a glass tube with a bulb at one end filled with mercury. As the temperature changes, the mercury expands or contracts, causing it to rise or fall in the tube. The temperature is then read based on the level of the mercury within the graduated scale on the tube.
What makes mercury go up and down a thermometer?
the heat and temperature that causes it to rise and fall.
What does an analog thermometer measure?
An analog thermometer measures temperature by using a liquid (like mercury or alcohol) that expands or contracts with changes in temperature, which causes the level to rise or fall in a narrow tube to display the temperature.
How does temperature affect a thermometer?
Temperature affects a thermometer by causing the liquid inside (usually mercury or alcohol) to expand or contract, which in turn causes the level to rise or fall on the scale. This change in level indicates the temperature of the object or environment being measured.
What makes mercury in a thermometer go up and down?
Change in temperature is what cause the Mercury to expand up (hotter) or shrink down (colder).
The function of a Mercury thermometer?
A Mercury thermometer measures temperature by relying on the expansion and contraction of the liquid mercury inside the glass tube. As the temperature changes, the mercury expands or contracts, causing it to rise or fall in the tube, indicating the temperature.
Why does mercury level goes down for a very short time when a mercury-in glass thermometer is placed in hot water?
The exterior of the bulb of the thermometer expands first, resulting in the mercury level to go down. After that the mercury in the bulb expands more than the glass bulb, resulting in the subsequent rise of the mercury level.
What happens to the mercury level when the cold thermometer is kept in a hot tub of water?
The mercury level in a thermometer placed in a hot tub of water will rise as the temperature of the water increases. This is because the volume of liquid mercury expands with higher temperatures, causing it to climb up the measuring scale in the thermometer.
How do thermometers measure change in temperatures?
Thermometers measure temperature change by detecting the expansion or contraction of a liquid (like mercury) or a gas (like alcohol) inside the thermometer. These materials expand or contract based on the surrounding temperature, causing the level of the liquid to rise or fall. The thermometer then displays the corresponding temperature based on a scale.
