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Flashcards in Chapter 1 - From Reading Deck (38):
1

What two gases mostly make up earths atmosphere?

Nitrogen and oxygen

2

Aerosol, what is it? Where is is

Our atmosphere contains large amount of these tiny particles

3

What does temperature mean?

Temperature is a measurement of the average speed that molecules move in a substance

4

How is the Celsius scale divided?

Boiling point of water (100c) and melting point of ice (0c)

5

How is Kelvin scale divided

Where (0) is set to absolute 0 and goes up from there

6

What is absolute zero?

Minimum energy state

7

From bottom to top, how is the atmosphere divided?

Troposphere, tropopause, stratosphere, mesosphere, thermosphere

8

Going up in altitude of the troposphere, how does the temp change?

The temperature decreases with hight

9

Going up in altitude of the stratosphere, how does the temp change?

The temp increases in hight

10

Where is the tropopause located?

Between the troposphere and the stratosphere

11

Why does the stratosphere temperature go up?

Because of the absorption of ultraviolet radiation

12

Where is the ozone situated?

In the stratosphere

13

What are the names of the two jet streams?

Subtropical jet stream

Polar jet stream

14

What is a jet stream?

Rivers of fast moving air in the upper troposphere

15

What are jet streams critical for?

The development of the earths weather systems

16

How does the temperature change in the mesosphere?

Temperatures decrease with hight

17

What is atmospheric pressure?

Force applied by air on a unit area of surface

18

What is a millibar?

A unit to determine pressure (ex - sea level is 1013.25 mob

19

What is the atmospheric density?

Mass in a unit volume (for pressure)

20

What does a barometer do?

Measures pressure

21

What is (mean sea level?)

A common sea level altitude in order to appropriately measure pressure density

22

What is water vapor?

Invisible gas composed of individual water molecules

23

What is vapor pressure?

Force per unit area applied only by water vapor

24

What is saturation?

When invisible vapor condenses into visible cloud droplets

25

What is the saturation vapor pressure?

The vapor pressure when the atmosphere becomes saturated

26

Relative humidity

Is the amount of water vapor in the atmosphere relative to the vapor pressure

27

What is the dew point?

Lowest temperature to which air can be cooled before saturation occurs.

28

What is the phase change for condensation?

From vapor to water

29

What is the phase change for freezing

From water to ice

30

What is the phase change for deposition?

Vapor to ice

31

What is the phase change for sublimation?

Ice to vapor

32

What is the phase change for evaporation?

Water to vapor

33

What is the phase change for melting

Solid to liquid

34

What is latent heat?

Hidden heat required for phase change

35

What is wind?

Simply the movement of air

36

What is a anemometer?

A divided to measure wind speed

37

What are wind barbs

Used to depict wind speed and direction

38

What is an atmosphere

In earths case, a thin layer of air extending from surface to hight of few hundred kilometers