Question

What happens to the energy carried by mechanical waves as they move away from their source?
It remains constant
It increases
It becomes more concentrated
It decreases

Answer 1

As mechanical waves move away from their source, the energy they carry typically **decreases**. This decrease in energy occurs due to several factors, including the spreading of the wave energy over a larger area (resulting in lower intensity), absorption by the medium, and scattering. Therefore, the correct answer is:

**It decreases.**