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  1. How Does Sound Travel? | Waves, Speed, Frequency, & Amplitude

    Nov 5, 2025 · Sound travels in waves that are disturbances that move through a medium by causing particles to vibrate back and forth.

  2. Sound | Properties, Types, & Facts | Britannica

    Nov 6, 2025 · The study of sound should begin with the properties of sound waves. There are two basic types of wave, transverse and longitudinal, differentiated by the way in which the wave is …

  3. Electromagnetic radiation - Radio Waves, Frequency, Wavelength

    Dec 12, 2025 · Electromagnetic radiation - Radio Waves, Frequency, Wavelength: Radio waves are used for wireless transmission of sound messages, or information, for communication, as …

  4. How Does a Radio Convert Waves into Sound? | Britannica

    There are two ways radio stations modulate their carrier waves: amplitude modulation, or AM, and frequency modulation, FM. AM radio broadcasts a carrier wave that maintains a constant …

  5. Sound - Decibel, Frequency, Amplitude | Britannica

    Nov 6, 2025 · Sound - Decibel, Frequency, Amplitude: The ear mechanism is able to respond to both very small and very large pressure waves by virtue of being nonlinear; that is, it responds …

  6. Wave | Behavior, Definition, & Types | Britannica

    Nov 20, 2025 · Mechanical waves, such as sound, require a medium through which to travel, while electromagnetic waves (see electromagnetic radiation) do not require a medium and can …

  7. Sound - Circular, Spherical, Waves | Britannica

    3 days ago · The fundamental mechanism for this propagation is known as Huygens’ principle, according to which every point on a wave is a source of spherical waves in its own right. The …

  8. Properties of sound | Britannica

    A sound wave is generated by a vibrating object. The vibrations cause alternating compressions (regions of crowding) and rarefactions (regions of scarcity) in the particles of the medium.

  9. Sound - Standing Waves, Frequency, Wavelength | Britannica

    Nov 6, 2025 · Sound - Standing Waves, Frequency, Wavelength: This section focuses on waves in bounded mediums—in particular, standing waves in such systems as stretched strings, air …

  10. Sound - Frequency, Wavelength, Absorption | Britannica

    Nov 6, 2025 · Sound - Frequency, Wavelength, Absorption: In addition to the geometric decrease in intensity caused by the inverse square law, a small part of a sound wave is lost to the air or …