2-1 Flashcards
Most of the energy from the sun reaches Earth in the form of
Visible light and infrared radiation, and a small amount of ultraviolet radiation
Energy travels to earth as
Electromagnetic waves
A form of energy with wavelengths that are longer than red light also can be felt as heat
Infrared radiation
Wavelengths that are shorter than violet light and can cause sunburns
Ultraviolet radiation
Reflection of light in all directions
Scattering
When Earth’s surface is heated, it radiates some of the energy back into the atmosphere as
Infrared radiation
The process by which gases hold heat in the air is called the
Greenhouse effect
The direct transfer of energy by electromagnetic waves is called
Radiation
Energy from the sun can be
Absorbed or reflected
Energy that is absorbed by land and water is changed into
Heat
What absorbs the energy that is radiated from earths surface
Water vapor, carbon dioxide, methane, and other gases
Which wavelengths are scattered more
Blue and violet
