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Water droplets form around microscopic foreign particles, called hygroscopic nuclei, that are already present in the air. These particles are in the form of dust, combustion residue (smoke and soot), salt from seawater evaporation and so forth. Because foreign particles initiate the formation of droplets that eventually fall as precipitation, condensation provides a mechanism for cleaning the atmosphere.
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After cloud droplets form what must happen to them for precipitation to occur?
Many water molecules condense on a tiny particle.
In order for clouds to form what must be present in the atmosphere for water vapor to condense on?
Water vapor or the heat
Why do tiny droplets of water fly off when a wet towel is suddenly jerked?
According to Newtons first law a body will remain stationary unless acted on by an external force. Therefore the force required to accelerate the water droplets attached to the towel at the same rate as the towel must be less than the force which can be provided due to adhesion between the towel and water droplets otherwise the towel will move away from the water droplets as cohesion is broken
What are the 2 things that must be present for a wave to form?
The pressure from underneath the surface such as water volcano, underwater earthquake etc. or waves can be caused by strong winds blowing the water.
How do you form rain?
The clouds floating overhead contain water vapor and cloud droplets, which are small drops of condensed water. These droplets are way too small to fall as precipitation, but they are large enough to form visible clouds. Water is continually evaporating andcondensing in the sky. If you look closely at a cloud you can see some parts disappearing (evaporating) while other parts are growing (condensation). Most of the condensed water in clouds does not fall as precipitation because their fall speed is not large enough to overcome updrafts which support the clouds. For precipitation to happen, first tiny water droplets must condense on even tinier dust, salt, or smoke particles, which act as a nucleus. Water droplets may grow as a result of additional condensation of water vapor when the particles collide. If enough collisions occur to produce a droplet with a fall velocity which exceeds the cloud updraft speed, then it will fall out of the cloud as precipitation. This is not a trivial task since millions of cloud droplets are required to produce a single raindrop. A more efficient mechanism (known as the Bergeron-Findeisen process) for producing a precipitation-sized drop is through a process which leads to the rapid growth of ice crystals at the expense of the water vapor present in a cloud. These crystals may fall as snow, or melt and fall as rain.
What must be present so the clouds can form?
water vapour
What must be present so that clouds could form?
Water vapor and heat must be present for clouds to form. The water is evaporated from the ground and collected into a cloud.
Besides water vapor what must be present for clouds to form?
The Sun
After cloud droplets form what must happen to them for precipitation to occur?
Many water molecules condense on a tiny particle.
What must be present for any precipitation to occur?
cloud droplets or ice crystals must grow heavy enough to fall through the air.HOPE this has helped you :)Or by temperature dropping *i dont think thts 1*
In order for clouds to form what must be present in the atmosphere for water vapor to condense on?
Water vapor or the heat
What conditions must be present to frost to form?
water vapour/ cold /and a condensation medium
Which two substances must be present for an iron object to rust?
For the oxidation of iron to occur, that is for ferric oxide to form, there must be oxygen present. There must also be water present.
What two changes of state must occur to produce to fog?
Fog occurs when the gaseous form of water (water vapor) begins to condense into water droplets (liquid water). So water is changing from a vapor (or gas) to a liquid.
For precipitation to form the cloud droplets must grow in volume roughly by?
one million times
For precipitation to form cloud droplets must grow in volume by roughly?
one million times
What is a cloud droplet?
A tiny amount of liquid water, of microscopic size -- though still containing a huge number of water molecules. Many droplets must merge to form just one normal-size drop of water.
