Multiple choice

Which of the following statements are correct for sound? (1) Sound is produced whenever a body vibrates in a medium. (2) The speed of sound does not depend on the medium. (3) Sound is a form of energy. (4) The speed of sound is affected by the change in pressure.

  1. Only 1 and 2

  2. Only 1 and 3

  3. Only 1 and 4

  4. Only 2 and 4

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
  1. Yes, whenever a body vibrates in a medium, sound will produce.
    1. The speed of sound depends on the medium. (Air < Liquid < Solid)
    2. Sound is a form of energy because energy always carried sound waves.
    3. The speed of sound is independent of pressure.