Energy Budget
The Sun
Shortest wavelength
Ultraviolet radiation
Direct transfer of heat from one object to another through touching.
Conduction
Moving electric charges
Ex. Lightening, anything you plug in
Electrical
Plants transform _____________ energy to ________________ energy.
electromagnetic to chemical
What percentage of the sun's energy is absorbed by land and oceans?
70%
Longest wavelength
Infrared radiation
Heat transfer in the form of rays or electromagnetic waves (like the sun)
Radiation
Associated with the motion of an object.
Ex. Anything man-made that moves. Sound too!
Windmills and dams convert
mechanical to electrical
What percentage of the sun's energy is reflected?
30%
Medium Wavelength
Visible light
Transfer of heat through currents in the water and air (rising heat).
Convection
Energy that is stored in chemical bonds that hold compounds together.
Ex. Food and fuels
Chemical
A lamp converts
electrical to electromagnetic
This occurs when gases in Earth's atmosphere trap the Sun's heat (infrared radiation).
Greenhouse Effect
This type of radiation causes sunburns.
Ultraviolet radiation
What type of heat transfer is this:
Walking on the hot sand in summer
Conduction
Form of radiant energy that travels in waves.
Ex. Light energy (Sun, lightbulbs)
Electromagnetic energy
A radio converts
Electrical to mechanical
The Greenhouse Effect makes the Earth ________.
warmer
We feel this type of radiation as heat
Infrared radiation
What type of heat transfer is this:
hot air balloons or
noodles moving in a pot from the boiling water
Convection
Energy of the speed of particles in an object.
Ex. Heat energy from a fire or the sun
Thermal energy
A coal burning power plant converts
(there are 3 of them)
thermal to mechanical to electrical.