1. The particles in sound waves: * 1 point move parallel to the direction of the wave. move perpendicular to the direction of the wave.

move parallel to the direction of the wave.

2. How do you measure the wavelength of a longitudinal wave? * 1 point the distance from a rarefaction to a compression the length of a rarefaction the length of a compression the length of one full compression and one full rarefaction

the length of one full compression and one full rarefaction

4. How does the amplitude of a wave affect sound? * 1 point the higher the amplitude, the louder the sound the lower the amplitude, the louder the sound the higher the amplitude, the higher the pitch the lower the amplitude, the higher the pitch

the higher the amplitude, the louder the sound