Review: Frequency and period are reciprocally related. Therefore, if the frequency of a wave is 5 Hz, then the period is__________.

Review: frequency and period are reciprocally related. Therefore, if the period is 1/2 seconds, then the frequency is ___________.

As the frequency of a wave increases, then what happens to the wavelength?

Which material would sound travel fastest in?

Why does sound travel faster in water than in air?

 $V=f\lambda$  
If the frequency is 5 Hz and the wavelength is 2 m, then what is the wave's velocity?

 $V=f\lambda$  
If the wave velocity is 20 m/s and the wavelength is 2 m, then what is the frequency?

 $V=f\lambda$   $f=\frac{1}{T}$  
If the time period of a wave is 2 seconds and the wavelength is 4 m long, then what is the wave's velocity?

 $V=f\lambda$  
If the velocity of the wave is 10 m/s and the frequency is 5 Hz, then what is the wavelength?