SOUND WAVES

beats Doppler effect resonance shock wavE

Series of alternating reinforcements and cancellations produced by the interference of the waves of different frequencies The apparent change in frequency perceived when the source and observer are approaching or receding from each other The vibration of an object as its natural frequency caused by a force or wave of the same frequency or multiple thereof The cone-shaped wave made by a particle moving faster than the speed of a wave in that medium

Resonance always causes the object resonating to fall apart or be destroyed.

false

A jackhammer is causing vibrations in a wall that is connected to the concrete being jackhammered. When the hammer is stopped, the wall ceases to vibrate. This type of vibration is:

forced vibration

Some equipment that was in operation caused continuous amplification of vibrations in a structure being worked on. This type of vibration is:

resonance