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    Question

    Which of the following is a characteristic of sound

    waves?
    A They are longitudinal waves. Correct Answer Incorrect Answer
    B Their speed depends on the medium. Correct Answer Incorrect Answer
    C They are produced by vibrations. Correct Answer Incorrect Answer
    D All of the above Correct Answer Incorrect Answer

    Solution

    Sound waves are longitudinal, meaning the vibrations move parallel to the direction of the wave.┬а Their speed varies depending on the medium (fastest in solids, slowest in gases).┬а Sound is produced by vibrating objects, transmitting energy through a medium.

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