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