A barometer is an instrument used to measure atmospheric pressure. It can measure the pressure exerted by the atmosphere by using water, air, or Mercury. Pressure tendency can forecast short term changes in the weather. Numerous measurements of air pressure are used within surface weather analysis to help find surface troughs, high pressure systems, and frontal boundaries. http://en.wikipedia.org/wiki/Barometer#Applications
I believe a cold front is the name given to a line where air at one pressure meets air at another pressure due to the difference in their temperature and moisture levels. It could be that a range of equipment is needed to identify or quantify the phenomenon but most households that bother with such things rely on a barometer.
The most common instrument (tool) is a tape measure.
Barometer is a weather instrument. It measures the atmospheric pressure.
Warm front, Cold front,
You have a few different types of fronts. You have warm fronts, cold fronts, and stationary fronts. First off the warm front alot of times they tend to move from south to north and when you get a warm front that moves through it obviously makes it warmer where you are. A cold front does just the opposite it makes it colder when it moves through and tends to normally head from the west to the east. Then a stationary front just basically sits there until it is pushed from either another front or a low or high pressure system then it can either be a cold or warm front. Additionally, occluded fronts are old cold fronts in mature low pressure systems where the storm has essentially used up the temperature gradient that existed in that sector, and there is no appreciable difference in air masses.
Rain Guage
A barometer can be used to measure a warm front since it measures atmospheric pressure. Warm fronts lie within broad troughs of low pressure.
a thermometer
A thermometer
The three cold fronts are the warm fronts, cold fronts, and the stationary fronts.
That would be a thermometer.
a thermometer
cold fronts
A thermometer is an instrument that measures cold and heat, together with temperature variations.
Warm fronts, cold fronts and occluded fronts.
No, warm fronts generally move slower than cold fronts.
Warm fronts move quicker than cold fronts but cold fronts still move rapidly.
Cold fronts can move very rapidly but still move slower that warm fronts.