Final answer:
The loss of signal strength the farther away you are from the sound source can be explained by the decrease in amplitude of the sound wave. This decrease in amplitude is caused by the spreading of the sound energy over a larger area and the absorption of the sound wave by objects.
Step-by-step explanation:
The loss of signal strength the farther away you are from the sound source can be explained by the decrease in amplitude of the sound wave. This decrease in amplitude is caused by two factors: the spreading of the sound energy over a larger area and the absorption of the sound wave by objects.
As the sound wave travels away from its source, the energy of the wave is spread over a larger and larger area, resulting in a decrease in amplitude. This means that the wave becomes less intense and the sound becomes less audible.
Additionally, objects in the environment can absorb the sound wave, causing further loss of energy and decrease in amplitude. For example, in a crowded and noisy place like a traffic jam, the sound waves from honking cars can be absorbed by other objects, making it necessary to shout in order to be heard.