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What instrument must you tap before reading the barometer on it?
Wiki User
∙ 10y ago
do you have to tap a barometer daily to get correct reading
Wiki User
∙ 10y ago
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What instrument must you tap before reading it?
One traditionally taps a barometer before taking the pressure reading and weather forecast.
How would a barometer reading change with a cold front?
A barometer reading would change with a cold front because the density of mercury will change with temperature, so a reading must be adjusted for the temperature of the instrument. For this purpose a mercury thermometer is usually mounted on the instrument. Temperature compensation of an aneroid barometer is accomplished by including a bi-metal element in the mechanical linkages. Aneroid barometers sold for domestic use typically have no compensation.
Is it possible to have a higher barometer reading at 1000 ft above sea level then you do at sea level?
When you have the same weather (high or low pressure region) then 1000 ft higher on top of a hill you will have lower barameter reading. On the hill there is not so much air over you. That's why there must be less pressure on you and on the barometer.
How can air tell the height of a mountain?
With the help of an instrument called barometer, you can tell approximately the height of a mountain, but you must climb to the top of the mountain to use such instrument. The higher is the mountain, there is less on the top of it, so the air pressure is fewer over there.
How do you use sahunay instrument?
using your mouth,hand and by using that you must learn how to use it by reading the babala
If a rider is attached to a bill it must be introduced before what event?
If a rider is attached to a bill it must be introduced before first reading.
Why must there be a near vacuum in the tube of mercury barometer?
there must be vacuum in the mercury barometer because if air enters the tube the barmeter would become faulty as air pressure will change.
Why must a barometer be open to the air at one end and close at the other end?
A barometer is used for measuring atmospheric pressure. The barometer sealed on the top with an open bottom in order to allow air pressure to push down.
Why is barometer useful?
Because it has a high density... meaning that the volume increase or decrease due to altitude change is can be viewed in a practical sized barometer. If water, which had a much lower density, was used instead of Mercury, the barometer must be at least 15m high.
How can you change pitch?
You can easily change the pitch of an instrument by the embouchure you are making with the instrument or perhaps even make an adjustment on your instrument. If it is flat, you must pull out your instrument, if it is sharp, you must pull it in.
Why must a barometer be place where are no temperature extremes?
The height of the mercury column is used to measure atmospheric pressure. If the barometer is also subjected to high temperatures, the thermal expansion of the mercury column will indicate a higher pressure than is really the case. This will make the barometer readings useless.
What accounts for the difference in heights of mercury vs water columns?
Density
