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

As Pressure increases...

  1. Temperature decreases.

  2. Temperature increases.

  3. Temperature stays the same.

  4. Temperature goes up and down.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

According to the ideal gas law, for a fixed amount of gas in a constant volume, pressure and temperature are directly proportional. As pressure increases, the kinetic energy of the particles increases, which corresponds to a higher temperature.

Multiple choice

The two types of Vaporization are

  1. Boiling and Raining

  2. Evaporation and Boiling

  3. Raining and Precipitation

  4. Evaporation and Condensing
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Vaporization is the process of a liquid turning into a gas. It occurs in two forms: evaporation (at the surface) and boiling (throughout the liquid).

Multiple choice

In which direction is air pressure exerted?

  1. upward

  2. downward

  3. sideways

  4. all answer choices
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Air pressure is the weight of the air above a point. Because air is a fluid, it exerts pressure in all directions, not just downward.

Multiple choice

Air flows from areas of 

  1. low pressure to high pressure

  2. high pressure to low pressure

  3. midpressure to midpressure

  4. low temperature to high temperature
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Air naturally moves from regions of higher pressure to regions of lower pressure to reach equilibrium.

Multiple choice

In a mercury barometer, when  air pressure increases, the mercury in the tube __________.

  1. rise

  2. fall

  3. stay the sane

  4. goes up and down at random
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In a mercury barometer, increasing atmospheric pressure pushes down on the mercury reservoir, forcing more mercury up the glass tube. The height of the mercury column directly indicates air pressure. When pressure decreases, the mercury column falls. The 'stay the sane' option contains a typo for 'stay the same'.

Multiple choice landforms of the earth and internal forces general physical geography general knowledge

Evaporation is greater when __________.

  1. warm air flows over warm current

  2. warm air flows over cold current

  3. cold air flows over warm current

  4. cold air flows over cold current
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Evaporation is highest when cold air moves over a warm water surface because the air is rapidly heated from below, increasing its capacity to hold moisture. Warm air over warm water or cold air over cold water results in less significant temperature gradients and lower evaporation rates.

Multiple choice biology global environmental change causes of greenhouse effect greenhouse effect pollution and its effects

Increase in atmospheric temperature due to $CO _2$ is

  1. Pasteur effect

  2. Blackman effect

  3. Emerson effect

  4. Green-house effect
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
A. Pasteur effect is the inhibition of fermentation or oxidation of glucose when the concentration of oxygen is increased.
B. Blackman effect describes the law of limiting factors according to which if a process is dependent on a number of factors then its rate is limited by the slowest factor.
C. Emerson effect is the increase in rate of photosynthesis when the light intensity is increased beyond 680 nm.
D. Green house effect is the increase in atmospheric temperature due to warming of earth's surface when the sun radiations are trapped in the earth. The radiations are trapped in earth because of green house gases like carbon dioxide.
So, the correct answer is 'Green-house effect'.
Multiple choice biology global environmental change causes of greenhouse effect greenhouse effect pollution and its effects

Without the atmospheric greenhouse effect, the average surface temperature would be:

  1. Higher than at present

  2. Lower than at present

  3. The same as it is now

  4. Much more variable than it is now
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The greenhouse effect traps heat in the atmosphere, keeping the Earth's surface significantly warmer than it would be otherwise. Without it, the average temperature would be much lower.

Multiple choice biology global environmental change causes of greenhouse effect greenhouse effect pollution and its effects

At night, low clouds:

  1. Enhance the atmospheric greenhouse effect

  2. Weaken the atmospheric greenhouse effect

  3. Are often caused by the atmospheric greenhouse effect

  4. Have no effect on the atmospheric greenhouse effect
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Low clouds at night act as a blanket, absorbing infrared radiation emitted by the Earth's surface and re-emitting it back downwards, which enhances the greenhouse effect and keeps the surface warmer.