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How is an analog thermometer able to show changes of temperature as smoothly rising and falling?
Wiki User
∙ 11y ago
Analog thermometers are based on the fact that matter expands and contracts in response to changing temperature. This is able to show smooth variation because the expansion and contraction is distributed among trillions of molecules per cubic millimeter. Since the expansion or contraction of each molecule is ultimately miniscule, the accumulated effects are excessively smooth.
Wiki User
∙ 11y ago
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Why does the temperature not fall immediately after taking a clinical thermometer from the mouth?
Because there is a constriction to prevent the indicator fluid falling to allow the maximum temperature to be read.
Why you need to prevent the Mercury of thermometer from falling back with the constriction?
So they can read the thermometer
What changes in a freely falling body?
Velocity
What energy changes occur when a falling rock hits the ground?
Kinetic Enegry
Does your weight change if the acceleration due to gravity changes?
If you're standing on something - yes. But if you're floating or falling, no.
Why is it best to take temperature readings in the shade?
A thermometer is not kept in direct sunlight because the temperature needed to be recorded by the thermometer is of the air and not the rays of the sun.
Why does the temperature not fall immediately after taking a clinical thermometer from the mouth?
Because there is a constriction to prevent the indicator fluid falling to allow the maximum temperature to be read.
How does the kink in a mercury or alcohol work in a clinical thermometer?
The kink stops the mercury from falling, giving the user/reader of the thermometer time to read the highest temperature recorded. Shaking the thermometer lets the mercury fall again.
Why you need to prevent the Mercury of thermometer from falling back with the constriction?
So they can read the thermometer
Do you measure air temperature in shade or in sunlight?
Air temperature should be measured in the shade. Sunlight falling on the instrument, the thermometer, will heat up the temperature receptor through radiation, causing the reading to be incorrectly high. For greater accuracy, place thermometer inside a box-like device called a Stevenson screen. Its purpose is to provide a standardized environment in which to measure temperature, humidity, dewpoint and atmospheric pressure. This product works by preventing sunlight from hitting the receptor on the thermometer, but it still allows air to circulate in and out. This device is also known as a cotton region shelter, an instrument shelter, a thermometer shelter, a thermo-screen or a thermometer screen.
What is red temperature line in a thermometre?
It's either mercury or colored alcohol. They're used because they expand in warmer temperatures, and contract in cooler temperatures, resulting in the rising and falling of the red line in your thermometer.
What changes in a freely falling body?
Velocity
What has potntial energy that changes to kinetic?
A falling object changes from gravitational potential to kinetic.
Does barometer falling mean measures the air temperature?
No, a barometer measures air pressure, not temperature. A falling barometer generally signifies unsettled or stormy weather coming in.
What type of changes happen as a ball is falling?
puberty c;
Is boiling point is always same as the melting point?
NO!!! Boiling point is the temperature when a liquid changes to a gas. Melting point is the temperature when a solid changes to a liquid. Remember For rising temperatures It melts then boils For falling temperatures It condenses then freezes. Melting/Freezing point is the same temperature for change of state solid/liquid Boiling/Condensing point is the same temperature for change of state liquid/gas
What does falling of his mercury mean?
It's most likely to relate to thermometers, as mercury in them will drop when the temperature drops due to the expansion and contraction of matter. Nowadays thermometers have pure alcohol in them though. Hope this helps.
