Final answer:
Yes, mechanical waves can be periodic.
Step-by-step explanation:
Yes, mechanical waves can be periodic.
A mechanical wave is a wave that requires a medium to travel through, such as sound waves, water waves, and earthquake waves.
Periodic waves are a type of mechanical wave that repeat for several cycles.
They are associated with simple harmonic motion, where the wave motion is regular and predictable.
A common example of a periodic mechanical wave is a sine wave.