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Energy in the Earth's Atmosphere
Energy in the Earth's Atmosphere 2
Heat Transfer
Heat transfer 2
Winds
100
What are three forms of radiation from the sun?
Infrared, visible light and ultraviolet
100
What is radiation?
Radiation is the direct transfer of energy by electromagnetic waves
100
On the Celsius scale what is the freezing point of water? On the Fahrenheit scale?
0 degrees Celsius and 32 degrees Fahrenheit
100
Which temperature scale do scientists use?
The Celsius scale
100
Wind speed can be measured using what?
An anemometer
200
Which form of radiation from the sun has the longest wavelength?
Infrared
200
What is scattering?
Reflection of light in all directions
200
What is used to measure air temperature?
A thermometer
200
What is the MAJOR way that heat is transferred in the troposphere?
Convection
200
What causes winds?
Winds are caused by differences in air pressure
300
Which form of radiation from the sun has the shortest wavelength?
Ultraviolet
300
What happens to the energy from the sun that is absorbed by Earth's surface?
It heats the land and water. Most is then radiated back into the atmosphere as infrared radiation.
300
Name three ways that heat can be transferred
Radiation, conduction, convection
300
What is convection?
Convection is the transfer of heat by the movement of a fluid
300
Above Earth's surface are bands of high speed winds called what?
jet streams
400
What happens to most of the sunlight that reaches Earth?
It is absorbed by the atmosphere or by Earth's surface
400
How might conditions on Earth be different without the greenhouse effect?
Earth would be much colder
400
What is conduction?
The direct transfer of heat from one substance to another substance that it is touching
400
What are convection currents?
The upward movement of warm air and the downward movement of cool air
400
The increasing cooling a wind can cause is called what?
wind-chill factor
500
What is the greenhouse effect?
The process by which gases hold heat in the air.
500
What is ultraviolet radiation?
An invisible form of energy with wavelengths that are shorter than violet light.
500
How is the air near Earth's surface heated?
By all three types of heat- radiation, convection and conduction
500
The total energy of motion in the particles of a substance is called what
Thermal energy
500
The way Earth's rotation makes wind curve to the right is called what?
The Coriolis Effect