in science:how does force and air pressure influence the reading on a barometer
2006-07-19 10:02:14 · 2 answers · asked by Anonymous in Education & Reference ➔ Homework Help
The important thing with air pressure is the trend in the pressure.
Generally speaking, falling pressure means that bad weather is on the way
while rising pressure means that fair weather is on the way. In addition,
rapid changes in pressure are typically associated with windy conditions
since these rapid changes are associated with large differences in pressure
over an area. The larger (smaller) the difference in air pressure over an
area, the stronger (weaker) the wind.
If you notice that the pressure indicated by your barometer is falling
quickly, you might be in for windy conditions and rain (snow or ice if it's
cold). If the barometer is falling slowly, the winds probably won't be very
strong and you might just have cloudy skies rather than rain or snow.
Conversely, if the pressure is rising rapidly, you may experience windy
conditions and quickly clearing skies (after it has been raining or
cloudy). If the pressure is rising slowly, the winds probably won't be as
strong and it may take a while for skies to clear, if they do at all.
2006-07-19 19:02:25 · answer #1 · answered by toota956 4 · 0⤊ 0⤋
it makes the mercury rise in the barometer which then gives you a reading.
2006-07-19 10:06:14 · answer #2 · answered by lafftah 2 · 0⤊ 0⤋