1 / 11

ELECTROMAGNETIC RADIATION

ELECTROMAGNETIC RADIATION. WAVES ELECTROMAGNETIC SPECTRUM TERMINOLOGY. INFORMATION. Radiation is a form of energy that is emitted from a source; it is “radiated”. We are surrounded by radiation. Radiation moves forward with the characteristics of a WAVE.

alazarus
Télécharger la présentation

ELECTROMAGNETIC RADIATION

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. ELECTROMAGNETIC RADIATION WAVES ELECTROMAGNETIC SPECTRUM TERMINOLOGY

  2. INFORMATION • Radiation is a form of energy that is emitted from a source; it is “radiated”. • We are surrounded by radiation. • Radiation moves forward with the characteristics of a WAVE. • The electromagnetic spectrum includes, in order of increasing frequency and decreasing wavelength: • radio waves, microwaves, infrared radiation, VISIBLE LIGHT, ultraviolet radiation, X-rays and gamma rays.

  3. ELECTROMAGNETISM • The study of electromagnetism deals with how electrically charged particles interact with each other and with magnetic fields. • Field: a region in which each point is affected by a force. • EM radiation is created when an atomic particle, such as an electron, is accelerated by an electric field, causing it to move.

  4. PHOTONS • Bundles of light energy are called photons. • Photons have no mass. • Photons travel in harmonic waves at the fastest speed possible in the universe: • 186,282 miles per second (299,792,458 meters per second) in a vacuum, also known as the speed of light. • The waves have certain characteristics, given as frequency, wavelength or energy. • The energy of the photon is directly proportional to its frequency.

  5. WAVES

  6. MAGNETIC & ELECTRIC FIELDS

  7. E: electric field B: magnetic field v: direction of the moving wave

  8. WAVE DESCRIPTION TERMINOLOGY

  9. SHORT WAVES: notice the wavelength, λ

  10. LONG WAVELENGTH, λ

  11. ELECTROMAGNETIC SPECTRUM

More Related