Waves & Information Transfer: Lesson for Kids

Lesson Transcript
Instructor: Tiffany Hightower

Tiffany is a certified elementary school teacher. She has a B.A. in English, education certification and a master's degree in education from Central Michigan University.

Information is transferred from devices through waves. Explore the relationship between waves and transferring information by examining how waves and signals are used, then explore how they apply to information transfer devices. Updated: 01/07/2022

Waves & Transferring Information

Do you enjoy funny emojis, like those you might send or receive through a text message? Have you played video games or watched a TV show on a cell phone? To view these things, information such as symbols, text or voice are transferred from one device to another. How is this information transferred? Well, there's a scientific explanation for this, and it involves radio waves, sound waves and digital signals.

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  • 0:04 Waves & Transferring…
  • 0:31 How Are Waves & Signals Used?
  • 1:25 Information Transfer Devices
  • 2:52 Lesson Summary
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How Are Waves & Signals Used?

Information is transferred from devices through signals. These signals are analog signals and digital signals. Analog signals are made of waves with a continuous pattern. Sound waves and radio waves are examples of analog signals that transfer information from one device to another.

Digital signals consist of a pattern of zeros and ones, which is called binary code. Computers use digital signals to process data or information. Digital signals are beginning to replace analog signals because of their speed. One example is that television used analog signals a few years ago to transfer information. However, digital signals replaced most of the analog signals on televisions. Morse code is one of the oldest ways to transfer information and also uses the binary code of zeros and ones.

Information Transfer Devices

You may have seen children making toy phones by tying a string between two cans. However, the process of talking on the phone involves a scientific process.

When you talk on the phone your voice produces sound waves. The sound waves turn into radio waves. The radio waves go through a modem, which is a device that changes radio waves to digital signals. After that, the digital signals change back to radio waves, then to sound waves on the other phone so that you can hear a person's voice.

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