Electromagnetic Spectrum: Radio Waves

These sites explain how radio waves are a part of the electromagnetic spectrum. Includes information about AM and FM frequencies and how to measure waves. Also includes a biography on Marconi, inventor of the radio. Includes several animated movies, hands-on activities and interactive quizzes. There is a link to an eThemes Resource on sound.

教育标准

• 4,
• 5,
• 6

申请州标准

• The Electromagnetic Spectrum

  This site provides a good overview of waves and electromagnetic waves. Follow the links to view short and long waves, including radio waves. Also mentions microwaves, infrared, visible light, ultraviolet, x-rays, and gamma rays.

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• Making Waves

  This interactive page lets you adjust the energy of waves, then measure its frequency and wavelength. Explore the entire site for more on waves, and be sure to click on "Brain Teasers" and "Light Facts" on every page.

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• How the Radio Spectrum Works

  This site explains the radio spectrum. Explains why AM and FM have different bands. NOTE: The site includes pop-up and banner ads.

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• PBS: A Science Odyssey: Guglelmo Marconi

  A brief biography of Guglielmo Marconi, the inventor of the radio. Click on "Radio Transmission" at the bottom of the page for an interactive activity with audio. Change the wave frequency and listen to the result. Requires Shockwave.

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• How Radio Works

  Read an explanation on how radios work. Click on "Next Page" at the bottom to start. Both amplitude modulation and frequency modulation waves are discussed. NOTE: The site includes pop-up and banner ads.

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• Space Sounds

  Listen to sounds of several planets and a black hole recorded by radio astronomers.

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• More about Radio waves and Electromagnetic Radiation

  Learn about radio waves and their frequencies. Explore links at the bottom of the page to learn how waves carry information and how wavelength is measured, what frequency is, and much more.

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• Space Weather

  Find out how radio waves carry sound. NOTE: The reading level is for older students.

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• Quia: Ordering the Spectrum

  Take this interactive quiz to test your knowledge of the order of the electromagnetic spectrum.

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• EdHelper: Sound Theme Unit: Sound Movement

  This worksheet has a crossword with terms related to radio waves. Includes Answers.

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• EdHelper: Sound Theme Unit: Sound

  Print out this page and complete a crossword. Includes Answers.

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• CIA World Factbook: Radio Broadcast Stations

  This page lists the number of AM and FM radio broadcasts each country has.

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• BrainPop: Radio

  Watch a movie that explains how radio works and how radio signals are transmitted. There are topics on electromagnetic spectrum, radar, and cellphone. Includes activities and a quiz at the bottom of a page. NOTE: This site requires a subscription.

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• eThemes Resource: Physics: Sound

  These sites explain sound waves and how the ear hears sounds. Includes information on sonic booms and decibels. Listen to a variety of sounds, play a virtual piano, watch movies about sound, or try several hands-on experiments.

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翻译链接

• AL
  • SCI. ES 4.1.1
  • SCI. ES 4.1.2
  • SCI. ES 4.1.3
• ME
  • D4.a
• MO
  • 1
  • 1.1
  • 1.2
  • 1.2.A.i
  • 1.2.F.a
  • 1.3
  • 2
  • 8
• NV
  • P.5.C.2
  • P.8.C.6
• UT
  • III.1.d
• OK
  • A.1.2
  • A.1.2
  • B.2.2
• DE
  • 1.1.15
  • 3.1.1
  • 3.3.1

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创建日期: 2001年10月10日 12:10 | 更新日期: 2013年5月18日 20:16