reading question 6

The vibrations along a sound wave move in a direction _______.

along and parallel to the wave

Bow waves and shock waves are produced by waves that _______.

constructively interfere, overlap one another, move slower than the source producing them

What occurs with the Doppler effect are changes in _______.

frequency due to motion

Noise-canceling devices such as jackhammer earphones make use of sound _______.

interference

The difference between musical sounds and noise involves _______.

irregular versus regular vibrations

When we consider the time it takes for a pendulum bob to vibrate up and down, we're talking about its _______.

period

The vibrations along a transverse wave move in a direction

perpendicular to the wave direction

When an object is set vibrating by a wave having a frequency that matches the natural frequency of the object, what occurs is _______.

resonance

He source of sound is something that is

vibrating

Wave speed depends on frequency and what else?

wavelength