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Q: Sound moves through the air and reaches our ears and gives us .......
  • A. loudness of sound
  • B. frequency of sound
  • C. sound sensing
  • D. music
Correct Answer: Option C - Sound moves through the air and reaches our ears, providing us with sensing of sound. Sound is produced by oscillation of matter. This oscillation causes reversible changes in air pressure and density, which move from their source with a particular velocity. These are called velocity of sound. When these waves hit the ear screen, sound sensing occurs. The specialty of these waves is that they can have reflection, refraction and diffraction. The number of oscillation per second is called frequency.
C. Sound moves through the air and reaches our ears, providing us with sensing of sound. Sound is produced by oscillation of matter. This oscillation causes reversible changes in air pressure and density, which move from their source with a particular velocity. These are called velocity of sound. When these waves hit the ear screen, sound sensing occurs. The specialty of these waves is that they can have reflection, refraction and diffraction. The number of oscillation per second is called frequency.

Explanations:

Sound moves through the air and reaches our ears, providing us with sensing of sound. Sound is produced by oscillation of matter. This oscillation causes reversible changes in air pressure and density, which move from their source with a particular velocity. These are called velocity of sound. When these waves hit the ear screen, sound sensing occurs. The specialty of these waves is that they can have reflection, refraction and diffraction. The number of oscillation per second is called frequency.