Lec 3

Question 1

What is the green house effect.

Answer 1

The trapping of radiation inside the earths atoms, warming the environment

Question 2

What is the dominant gas in atoms?

Answer 2

N2 = 78%

Question 3

What type of energy I light enters the earth.

Answer 3

Visible light.

Question 4

What is absorbed and re-radiated by the atoms?

Answer 4

Infrared radiation

Question 5

Weather

Answer 5

Short term or current atmospheric. Conditions
Air temp, precip, wind, clouds, humidity

Question 6

What is climate

Answer 6

Long term trend in weather ever a defined area
Min 30 years

Question 7

What are derived dimensions?

Answer 7

Combination of base units to make measurements

Question 8

What is temp?

Answer 8

A measure of Aug molar kinetic energy
How fast moles are moving in a substance.
Uses k or any

Question 9

What tools can measure temp?

Answer 9

Thermometric: materials that have a consistent response to temp chug.
Radiometric - measures the wavelength emitted by an object

Question 10

Pressure

Answer 10

The force of a substance (air) applied over a defined area
Units of Kia or mb(milibar)

Question 11

What measures pressure

Answer 11

Barometer, where mercury pushes on a metal box without changing volume.

Question 12

Humidity

Answer 12

The water Vapor in the air, often in terms of relative humidity.

Question 13

Relative humidity

Answer 13

The % of water vapour in the air in relation to how much would be in the air if it was fully saturated.
Temp dependant.

Question 14

Vapor pressure

Answer 14

The weight in the air caused by H2O moles
In Pa or Mb

Question 15

Absolute humidity

Answer 15

The mass of H2O in a given volume
Kg/ m3 or ma/m3

Question 16

Mixing ratio

Answer 16

% Of air that is Vapor
Kg H2O / kg dry air

Question 17

What measures humidity

Answer 17

Hygrometer
Mechanical: use of materials that expand or contract in H2O content
Electrical: uses conductive materials to measure change in electric currant with respect master

Question 18

Precipitation

Answer 18

Any water particles that fall from the sky
Any physical form: rain, snow, hail, street

Question 19

Rain

Answer 19

Liquid, or solid precipitation that has melted as it reaches the surface.

Question 20

Freezing rain

Answer 20

Liqural precip that comes into contact wi cold air near the surface and freezes upon impact.

Question 21

Sleet

Answer 21

Frozen precip that melts in shallow warm air but refreezes into solid.before hitting the grand

Question 22

Snow

Answer 22

Frozen precip that remains frozen during falling duration.

Question 23

How is wind direction measured

Answer 23

From the direction it is coming from in compass degrees

Question 24

What tool measures wind

Answer 24

Anemometer

Question 25

Latent heat

Answer 25

The energy absorbed or released during the phase change of a substance

Question 26

Dew point.

Answer 26

He temp required for H2O Vapor to cool and condense into water

Question 27

Specific humidity

Answer 27

The # of H2O moles are in the air
#G hzo / kg air

Question 28

What causes law pressure

Answer 28

Rising air, commonly associated w clay, wet and windy weather.

Question 29

What causes High pressure.

Answer 29

Sinking air common wi very sunny days in summer and winter.