Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
10 Cards in this Set
- Front
- Back
|
The earths atmosphere is heated in two ways; What are they?
|
1.When gasses absorb radiation from the sun
2.when gasses absorb heat given off by the oceans, and heat the surface of the earth thats absorbed from the sun. |
|
|
Energy from the sun travels through space as radiation. How fast does it travel?
|
300,000 km/s
|
|
|
The different types of radiation have;?
|
different wavelengths
(gamma,xrays,uv,visible,infrared,microwave,radio) |
|
|
How does the atmosphere affect radiation?
|
1. Nitrogen and Oxygen in the thermosphere absorb XRAYS, GAMMA, and UVRAYS
2.The stratosphere absorbs UV RAYS creating ozone |
|
|
What is scattering?
|
Its bending of light as it hits dust and water particles in the atmosphere
( cause red and blue sunsets) |
|
|
What is reflection?
|
Reflection occurs when light changes direction as a result of "bouncing off" a surface like a mirror.
20% of radiation 30% is reflected or scattered 50% is absorbed by the surface by the surface of the earth. |
|
|
When you feel the warmth of the sun you are feeling_______?
|
Infared Radiation
|
|
|
What is the process in which the earth heats its self?
|
1. Infared radiation passes through the upper atmosphere
2.Infrared is absorbed by the surface. 3.The surface gives off heat by engergy 4. Carbon dioxide and water vapor. ( if there is extra carbon dioxide in the air the more heat energy can be absorbed) |
|
|
How warm the atmosphere becomes in any region on the earths surface depends on several factors. What are they?
|
1.Latitude-Closer to the equator, higher the sun angle.
2.Elevation-Higher elevations are colder 3.Land and water-cools and heats faster than water. 4.Delay in heating-It takes time in the day for land to heat. |
|
|
Most heating of the atmosphere comes from radiation. A small amount comes from conduction and convection. What happens?
|
1. Land heats air by conduction
2.Air circulates heat by convection |
