18. Waves & Sound

In a longitudinal wave, what is the region called where the particles of the medium are close together?

Which of the following changes in wave properties will result in an increase in wave $amplitude$?

Which characteristic of waves was primarily responsible for the collapse of the Tacoma Narrows Bridge in 1940?

In a mechanical wave described by the wave function, how does increasing the amplitude $A$ affect the wavelength $\lambda$ of the wave?

Suppose two waves are traveling at the same speed, but one has a shorter $\mathrm{wavelength}$ than the other. Which wave has the higher $\mathrm{frequency}$?

In a diagram of a sinusoidal wave, which part of the diagram represents the $amplitude$ of the wave?

If you increase the frequency $f$ of a wave while keeping the wave speed $v$ constant, what happens to the number of waves (wavelengths $\lambda$) present in a given distance?

Given a traveling wave described by the equation $y=Asin(kx-\omega t+\phi )$, where $\phi$ is the phase constant, if the wave at $x=0$ and $t=0$ has a displacement of zero and is moving in the positive x-direction, what is the value of the phase constant $\phi$?

Which term describes the maximum displacement of a point on a wave from its equilibrium position?

Why are surface waves more destructive to buildings than the initial seismic wave in an earthquake?

Which of the following actions will decrease the amplitude of a wave described by the wave function $y=Asin(kx-\omega t)$?

When the energy of a wave is absorbed by a medium, what typically happens to the wave?

How does increasing the tension in a spring affect the speed of a wave traveling along the spring?

Which type of wave has a disturbance that travels in the same direction as the wave itself?

A wave is described by the equation $y=2\ast sin\left(4\pi t\right)$. What is the frequency of this wave?