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;
21 Cards in this Set
- Front
- Back
It takes how many minutes for the sun's rays to reach your face?
|
8 minutes
|
|
Name the 3 types of atmospheric heating.
|
Radiation, Conduction, and Convection
|
|
What is Radiation?
|
Energy transfer by electromagnetic waves
|
|
How much radiation energy does the Earth receive?
|
2 billionths
|
|
What is thermal conduction?
|
Thermal conduction is the transfer of thermal energy through a material
|
|
Thermal energy is always transferred from what to what?
|
Warm to cold areas
|
|
What is convection?
|
Convection is the transfer of thermal energy by circulation ormovement of a liquid or gas.
|
|
In convection, warm air rises and becomes.....
|
Less dense
|
|
Cool air is dense, so it....
|
Sinks
|
|
The cycle of warm air rising and cool air sinking causes a movement of air called.....
|
Convection current
|
|
What percentage of radiation that enter's Earth's atmosphere is absorbed by clouds and by the Earth's surface?
|
70%
|
|
The radiation that is absorbed by the clouds and the Earth's surface is converted into .....that warms the planet?
|
Thermal Energy
|
|
What is the Greenhouse effect?
|
The process by which gasses in the atmosphere , such as water vapor and carbon dioxide, absorb thermal energy and radiate it back to Earth
|
|
The gases in the atmosphere act like ............... which allows solar energy to enter, but prevents thermal energy from escaping
|
glass walls and roof of a greenhouse
|
|
Radiation Balance
|
Energy in, energy out
|
|
In order for the Earth to remain livable, the amount of energy received from the sun and the amount of enengy returned to space must be .....
|
Equal
|
|
The balance of incoming and outgoing energy is known as
|
Radiation Balance
|
|
Scientists have been concerned about the increase in .....
|
Global temperature
|
|
An increase in global temperature is known as
|
global warming
|
|
Some scientists believe that the increase of greenhouse gasses in the atmosphere may be the cause of
|
Global warming
|
|
Human activity, such as burning of fossil fuels and deforestation, may be increasing the levels of greenhouse gases, such as
|
Carbon dioxide
|