Physics · Geography

Atmospheric Physics and Humidity

878 Questions

Study the principles of atmospheric physics and humidity through these practice questions. Key subjects include the rate of evaporation, temperature inversions, and relative humidity measurements. These concepts are vital for geography and physics exams.

Evaporation and condensationRelative humidity conceptsAtmospheric pressure effectsTemperature inversion

Atmospheric Physics and Humidity Questions

Multiple choice physics the kinetic model of matter force and kinetic theory change of states phase change

State whether true or false:

Dew point is the temperature at which the gas at given atmospheric conditions becomes saturated.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The dew point is the temperature at which the water vapor in a sample of air at constant barometric pressure condenses into liquid water at the same rate at which it evaporates so dew point is a temperature at which the air becomes saturated.

Multiple choice physics the kinetic model of matter force and kinetic theory change of states phase change

A fan produces a feeling of comfort because :

  1. A fan supplies cool air

  2. Of the evaporation of sweat

  3. Fan increases the humidity in air

  4. Fan decreases the humidity in air
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A fan produces a feeling of comfort because of evaporation of sweat. As evaporation releases heat energy, and evaporation of sweat. Results in feeling cool in those body parts.

Multiple choice geography rivers, coasts and glaciation rivers rivers and their work exogenic forces

In air, amount of water vapor is classified as ______________.

  1. wind

  2. precipitation

  3. humidity

  4. temperature
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Evaporative cooling is restricted by atmospheric conditions. Humidity is the amount of water vapor in the air. The vapor content of air is measured with devices known as hygrometers. The measurements are usually expressed as specific humidity or percent relative humidity. The temperatures of the atmosphere and the water surface determine the equilibrium vapor pressure; 100% relative humidity occurs when the partial pressure of water vapor is equal to the equilibrium vapor pressure. This condition is often referred to as complete saturation.

Multiple choice geography rivers, coasts and glaciation rivers rivers and their work exogenic forces

What generally happens to air temperature as we move from the equator to the poles?

  1. It decreases

  2. It increases

  3. It remains constant

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The air temperature diminishes as we move from the equator towards the poles because the sun's ray's reach the earth at an angle outside the tropics. So the temperature decreases.

Multiple choice biology properties of natural resources the concept of bernoulli's principle variations in atmospheric pressure air exerts pressure

As one goes up from earth's surface, the temperature of air:

  1. increases

  2. decreases

  3. first increases and then decreases

  4. first decreases and then increases
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In the atmosphere, temperature decreases with altitude in the troposphere, but then increases in the stratosphere due to ozone absorption of UV radiation.

Multiple choice biology properties of natural resources the concept of bernoulli's principle variations in atmospheric pressure air exerts pressure

The experiment conducted using glass filled with water and card board indicates that _________. 

  1. Air has mass

  2. Air occupies space

  3. Air expands when heated

  4. Air exerts pressure
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The experiment conducted using glass filled with water and card board indicates that air exerts pressure.

Multiple choice biology properties of natural resources the concept of bernoulli's principle variations in atmospheric pressure air exerts pressure

Which of the following doesn't show that air exerts pressure?

  1. Riding a bicycle against wind

  2. Flying a kite

  3. Ball falling to the ground

  4. Drinking a soft drink through a straw
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A ball falling down to the ground is due to gravity and not due to air pressure. Hence, it doesn't show that air exerts pressure.

Multiple choice biology properties of natural resources the concept of bernoulli's principle variations in atmospheric pressure air exerts pressure

The humidity of a place:

  1. lies between 10% -20%

  2. is always more than 50%

  3. is always less than 80%

  4. varies from time to time
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The humidity of a place varies from time to time as it also depends on the place we reside in. Coastal areas have more humidity or is more humid due to the pressure of the sea breeze.

Multiple choice chemistry environmental chemistry biochemistry and the environment green chemistry strategies to control environmental pollution and green chemistry

Shrinkage of concrete depends upon the: 

  1. relative humidity of the atmosphere & passage of time

  2. the moisture in the surrounding

  3. applied stress

  4. raining factor
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

 Drying shrinkage is defined as the contracting of a hardened concrete mixture due to the loss of capillary water. This shrinkage causes an increase in tensile stress, which may lead to cracking, internal warping, and external deflection before the concrete is subjected to any kind of loading.

Shrinkage depends upon the relative humidity of the atmosphere & passage of time.
Hence, the correct option is A.

Multiple choice chemistry environmental chemistry biochemistry and the environment green chemistry strategies to control environmental pollution and green chemistry

The humidity of a place

  1. lies between 10% - 20%

  2. is always more than 20%

  3. is always less than 80%

  4. varies from time to time
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Humidity is amount of water vapour present in air.It varies from place to place due variation in temperature and climate conditions.The ideal humidity for health and comfort is about $40-50$%.