Buscar
Estás en modo de exploración. debe iniciar sesión para usar MEMORY

   Inicia sesión para empezar

level: Emitting and Absorbing Radiation

Questions and Answers List

level questions: Emitting and Absorbing Radiation

QuestionAnswer
All Objects emit....-EM Radiation. Simple
Explain HOW and WHY the Radiation looks like that for a Intensity against Wavelength Graph: 1. The Sun 2. You.1. So Radiation will cover through Energy Values, Wavelengths and Frequencies. And as something gets Hotter, Every Wavelength will get Hotter - but it'll be Very Quick for the Shorter Wavelengths because of the fact that Shorter Wavelengths = More Energy being Transferred so the Peak will Change from the Middle of the x Axis [Long Wavelengths] to the Right Side of the Graph [Shorter Wavelengths. 2. You will Emit Infra Red Radiation, so the Peak of the Graph will be where the Wavelength Matches the Infra-Red Section
All Objects absorb...-EM Radiation. Simple
What happens to a: 1. Hot Objects that is Surrounded by a Cold Environment 2. And the Opposite to Above. 3. And if the Object Emits the Same Amount as it Absorbs.1. Object that is Hotter will Give out more Radiation than it will Absorb - so it will Cool over Time. 2. Objects that is Colder will Emit more Radiation than it will Absorb - so it will be Warmer over Time 3. Nothing will happen as the Object will Emit the Same Amount as the Absorption Rate
How can Radiation affect the Earth's Temperature?-Sun Emits EM Radiation, like UV, IR, and VI [Visible Light] -Some of it will either Reflect, be Absorbed or be Transmitted through the Atmosphere. -And then the Earth may Re-Emit some Radiation, or Reflect it back towards the Atmosphere [Greenhouse Gases] - which will also either Re-Emit, be Transmitted or Absorbed. This will keep Earth Warm. -So it all Depends on how much is Reflected, Absorbed or Emitted.