Question

during a baseball game, the sound of the bat hitting the ball can be heard in most parts of the stadium. that sound is weaker at greater distances. what is the cause of this phenomenon? (1 point)○ the sound waves slow down as they move away from the bat.○ the sound waves are spread out over a large area.○ the sound waves can only travel through certain materials.○ the sound waves are blocked by people in the stadium.

Explanation:

Sound waves propagate outward from their source (the bat hitting the ball) in expanding spherical waves. As they travel farther, the same amount of sound energy is distributed over a larger surface area, which reduces the intensity (loudness) of the sound at greater distances. The other options are incorrect: sound wave speed in a uniform medium (air in the stadium) is constant; sound travels through air (the main medium here) easily; while some sound may be blocked by people, this is not the primary reason sound weakens with distance in most of the stadium.

Answer:

The sound waves are spread out over a large area.