After an explosion far away, a person working on a farm first senses vibrations in the ground, then hears the explosion. What accounts for the time between the vibrations and the noise? A) Wind slows down the noise in the air. B) The landscape affects the way sound travels through the air. C) Sound travels faster through the ground than through the air. D) The speed of sound is faster through the air than in the ground.

Question

Bianca

Physics

4 February, 10:57

After an explosion far away, a person working on a farm first senses vibrations in the ground, then hears the explosion. What accounts for the time between the vibrations and the noise? A) Wind slows down the noise in the air. B) The landscape affects the way sound travels through the air. C) Sound travels faster through the ground than through the air. D) The speed of sound is faster through the air than in the ground.

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Answers (2)

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Gaige Chang · Answer 1

C) Sound travels faster through the ground than through the air cuz' sound can travel thro' ground n air. person felt vibration which is sound thro solid before hearing it (sound thro air). so sound must travel faster thro gnd.

Harmony Weeks · Answer 2

Letter C because the farmer had felt the ground shake first than him listening to the sound