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2 September, 00:12

Jeff is listening to the radio. He knows that the radio produces sound energy because

A.

he can hear music coming from the radio.

B.

he can feel heat coming from the back of the radio.

C.

he can see the display on the radio when it lights up.

D.

he gets shocked when he touches the radio.

Answer is A.

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Answers (1)
  1. 2 September, 00:18
    0
    A. he can hear music coming from the radio.

    Explanation:

    Jeff knows that the radio produces sound energy because he can hear music coming from the radio.

    The music from the radio is a form of sound energy.

    Sound energy is a form of energy dissipated from a body and can be discerned by humans. Sound is a mechanical wave that requires a material medium for its propagation. It travels by series of rarefaction and compression along its path of motion. Since sound energy is an energy in motion, it is a kinetic energy. It travels parallel to its source and therefore, it is a longitudinal wave.
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