Energy, Flows, and Feedback's Flashcards
Energy
The ability to do work or transfer energy
Joule
The amount of energy used when a 1-watt electrical device is turned on for 1 second
Electromagnetic radiation
A form of energy emitted by the sun that includes but is not limited to, visible light, ultraviolet light, and infrared energy
Photon
A mass less packet of energy that carries electromagnetic radiation at the speed of light
Potential Energy
Stored Energy that has not been released
Chemical energy
Potential energy stored in chemical bonds
Kinetic energy
The energy of motion
Temperature
The measure of the average kinetic energy of a substance
First law of thermodynamics
A physical law which states that energy can neither be created nor destroyed but can change from one form to another
Second law of thermodynamics
The physical law stating that when energy is transformed, the quantity of energy remains the same, but its ability to do work diminishes
Energy efficiency
The ratio of the amount of energy expanded in the form you want to the total amount of energy that is introduced into the system
Energy qualify
The ease with which an energy source can be used for work
Entropy
Randomness in a system