Infrared Radiation And Thermal Radiation

1711 WordsDec 3, 20157 Pages
All objects that have a temperature greater than 0 degrees celsius emit thermal radiation. Thermal radiation is the process by which energy, in the form of electromagnetic radiation, is emitted by a heated surface in all directions and travels directly to its point of absorption at the speed of light; thermal radiation does not need an intervening medium to carry it.Thermal radiation, process by which energy, in the form of electromagnetic radiation, is emitted by a heated surface in all directions and travels directly to its point of absorption at the speed of light; thermal radiation does not need an intervening medium to carry it. The amount of thermal radiation given off by an object is the amount of heat an object gives off. Heat is the quality of being hot; high temperature. Heat is the amount of energy an object has. When molecules get more energy then heat is created. The more molecules an object has the more heat that the object gives off. The temperature of an object is the measurement of how hot or cold it is, measured in degrees Celsius (°C). Temperature can also be measured in a Fahrenheit scale, named after the German physicist called Daniel Gabriel Fahrenheit (1686 – 1736). It is showed by the symbol 'F '. In Fahrenheit scale, water freezes at 32 °F, and boils at 212 °F. In Celsius scale, water freezes at 0°C and boil at 100°C. A thermometer measures the amount of heat in an abject. When an object’s temperature reaches a certain point it will go through a

More about Infrared Radiation And Thermal Radiation

Open Document