Earth Science Ch. 18

Lakukan tugas rumah & ujian kamu dengan baik sekarang menggunakan Quizwiz!

Hygrometer

An instrument that measures relative humidity

Precipitation

Any form of water that falls from a cloud

Which of the following processes can produce either rain or snow?

Bergeron Process

Which type of cloud is high, white, and thin?

Cirrus

Describe the difference between clouds and water vapor

Clouds are a form of condensation: visible mixtures of tiny droplets of water or tiny crystals of ice. Water Vapor is the gas phase of water.

Stratus

Clouds are best described as sheets or layers that cover much or all of the sky

How are clouds classified?

Clouds are classified on the basis of their form and height

Cumulus

Clouds consist of rounded individual cloud masses

Cirrus

Clouds that are high, white, and thin

List two changes of state for water that cause latent heat to be released

Condensation and Freezing

Compare and contrast clouds and fogs

Fog is defined as a cloud with its base at or very near the ground. Physically there is no difference. Difference is the method and place of formation.

What must happen in order for precipitation to form?

For precipitation to form cloud droplets must grow in volume by roughly one million times

Latent Heat

Heat used to melt ice (Latent means hidden). Stored in liquid until water returns to solid form

If the water-vapor content of air remains constant, lowering air temperature causes a(n)

Increase in relative humidity

What word is used to describe a cloud as rainy?

Nimbus

Rain, snow, sleet, and hail are all examples of

Precipitation

The ratio of air's water-vapor content to its capacity to hold water vapor at that same temperature is the

Relative Humidity

What does relative humidity describe about air?

Relative humidity is a ratio of the air's actual water-vapor content compared with the amount of water vapor air can hold at that temperature and pressure

A low cloud that blankets the sky and often generates precipitation is called a(n)

Stratus Cloud

Humidity

The amount of water vapor in the air

Write a general statement relating air temperature and the amount of water vapor needed to saturate the air

The amount of water vapor required for saturation depends on the temperature of the air

Condensation

The change from a gas to a liquid

Evaporation

The change of a liquid to a gas

As you drink an ice-cold beverage on a hot day, the outside of the glass becomes wet. Explain why this happens

The cold glass cools the air in contact with it below the air's dew point and water vapor condenses on the glass.

What happens to heat during a change of state?

The process of changing state requires that energy is transferred in the form of heat.

Describe how the temperature profile of air near Earth's surface controls the type of precipitation that falls to the ground

The type of precipitation that reaches Earth's surface depends on the temperature profile in the lowest few kilometers of the atmosphere. Temperature profile is the way the air temperature changes with altitude. For example, even on a hot summer day, rainfall may have begun as a snowstorm high in the clouds overhead.

Supersaturated

When air is saturated (100% relative humidity) with respect to water

How does the temperature of air influence its ability to hold water?

When saturated, warm air contains more water vapor than cold air

List two ways that relative humidity can be changed

When water-vapor content of air remains constant, lowering air temperature causes an increase in relative humidity, and raising air temperature causes a decrease in relative humidity

Sublimation

a change directly from the solid to the gas state without becoming liquid

Bergeron Process

a process that produces percipitation; the process involves tiny ice crystals in a supercooled cloud growing larger at the expense of the surrounding liquid droplets

Relative Humidity

a ratio of the air's actual water-vapor content compared with the amount of water vapor air can hold at that temperature and pressure

Saturated Air

air that contains as much water vapor as is possible for that temperature

What is the difference between condensation and precipitation?

condensation is the transformation of state from a gas to a liquid and precipitation is next stage after condensation where water droplets become larger and larger so as they fall under gravity in form of rain from the cloud

collision-coalescence process

formation of precipitation, where tiny droplets accumulate, fall, and collide with other small droplets until rain drops form and fall.

Dew Point

the temperature at which the water vapor in the air becomes saturated and condensation begins

What is the most important gas for understanding atmospheric pressure?

water vapor


Set pelajaran terkait

CFA 16: The Firm & Market Structures

View Set

Exam 1 Review Management & Labor Relations

View Set

Respiratory Acidosis Module Ques

View Set

HDFS Final (CHP 7,8,9, 10, 11, 12)

View Set

Chapter 4: Internal Analysis Resources, Capabilities, and Core Competencies

View Set

Aller Retour Questions Chapter 1 à 12

View Set

NR 412 Vision, Hearing, Vestibular

View Set