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Q: Why is it important to shake down the thermometer?
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What is the diffrerence between digital thermometer and mercury thermometer?

Digital thremometer is shows digit and run by electric or cells mercury thermometer is shows mercury up and down. when temperature low and down.


Why clinical thermometer is jerked before using it again?

If you have an old thermometer that has mercury, then the shaking makes all of the mercury flow to the bottom of the thermometer. Then, you can get a better reading. The current digital ones work differently. Thermometers used for taking people temperatures are a special kind that go up with heat but don't go down with cold. So you have to shake a thermometer before taking your temperature to make the reading go down below your own temperature. Then the thermometer can go up again to read your temperature.


How do you tell how hot or cold something is?

use a thermometer.We can feel how hot or cold something is. However, sometimes things are just too hot or cold for us to feel safely. At other times we need to know exactly how hot or cold something is. When we need to measure temperature correctly we need to use an instrument called a thermometer. This measures temperature in degrees Celsius [sometimes called centigrade] or degrees Fahrenheit. There are different types of thermometers for different situations. A medical thermometer, for example, needs to be very accurate. It measures in fractions of degrees. When we are ill, even tiny changes in temperature are important. Some thermometers use a liquid that moves up a very fine glass tube. Most room thermometers, and outdoor thermometers are like this. The liquid is either mercury [ which is poisonous] or coloured alcohol. As liquids get warmer they expand [get bigger], and move up the tube. Water expands too, but not as much as alcohol and mercury. Thermometers that might be used by small children are not made of glass. They use a digital display which lights up the temperature. Inside the displays are chemicals that change colour according to the temperature.


How does a glass thermometer works?

As the liquid in the thermometer is heated it expands, and the only way the expanding liquid can go is upward. As the liquid in the thermometer cools, it will contract, and the liquid will fall back down into the resevoir, causing the column of liquid to move downward.


Why doesn't the mercury on a medical thermometer go down when it's removed from the body?

There is a kink put in the tube which carries the mercury up the thermometer, that is why it needs to be shaken to send it back to the bulb

Related questions

What do you do before taking an axillary temperature?

Shake down the thermometer before using, if the reading on the thermometer is 94.0º F or above.


Your oral thermometer is stuck on 107 degrees?

If the mercury won't shake back down, you ought to buy a new one.


When was Shake Down created?

Shake Down was created in 2006.


Why do you have to shake the clinical thermometer after reading but do not have to shake the laboratory thermometer?

So that the mercury will return to its original position (becos there's a constriction that actually keeps the mercury in place after u remove it from your mouth)


Why it is important the luquid in the thermometer has uniformly?

It is important for the liquid in the thermometer to be uniform for accurate measurements. If a thermometer is not calibrated properly, it will detect measurements in temperatures that are inaccurate.


When was Shake Me Down created?

Shake Me Down was created on 2010-11-22.


When was Shake You Down created?

Shake You Down was created on 1986-09-29.


When was Shake 'Em on Down created?

Shake 'Em on Down was created on 1937-09-02.


Who sings the song that goes - Shake what you got show got a lot shake it down down down?

Pressha is the name of the group. Name of song is Shake It Down. -djcrak


Is it normal for the temperature to go up on a thermometer when it has come out of a ice-water bath for 1 minute?

Assuming that the surroundings are above the freezing point of water - yes - it is normal for the temperature on the thermometer to go up. It may still remain elevated even if plunged back into the ice bath since the thermometer has mass and can absorb some energy while out of the bath. There is also the phenomena that in some thermometers even when the temperature drops, the thermometer fluid sometimes remains elevated unless you "shake down" the thermometer.


What is the diffrerence between digital thermometer and mercury thermometer?

Digital thremometer is shows digit and run by electric or cells mercury thermometer is shows mercury up and down. when temperature low and down.


Why should a clinical thermometer not be washed in hot water?

The idea is based avoiding use of the thermometer when it is reading "higher" than what it is that is being measured. Let's look at what's happening. If we wash a clinical thermometer in hot water, it will respond to that hot water. That will cause the reading to shoot up well above a hundred degrees. If we then try to use it, it will have to "cool down" under the tongue of the person we're using it on. It is actually being cooled by that person. The thermometer will take a relatively long time to reach the temperature of the individual whose temperature is being measured. And this time will vary, but will be longer than it would be for the thermometer to "come up" to temperature. One of the directions for using these thermometers is to first shake it down until it reads less than 95 degrees or so. If you're starting with a thermometer than has just been washed in hot water, you're not going to be able to shake it down per the directions. You'll have to run it under cool water for a bit to cool it so you can use it.