Science Ch.2

Causes a sound in front of a moving sound source to seem to have a higher pitch and frequency.

When it is larger, the sound is louder.

Speed of sound varies from one to another.

Used to graph representations of sound wave.

How high of low a sound seems to be.

A measure of how well a sound can be heard.

Sounds with 120 of these units can be painful.

Results from long-term exposure to loud sounds.

Sounds that have a frequency too high for people to hear.

Units for ezpressing frequency.

Interference used by a band when several instruments play the same note.

Technology that uses echoes to locate objects.

Interference that may cause people not to hear sounds in an auditorium.

A medical procedure used to check the devlopment of an unborn baby in a mother's body.

Explosive sound heard when shock waves arrive at a person's ears.

When 2 or more waves combine to form a single wave.

Process in which a dolphin uses reflected waves to determine how far away objects are.

A reflected sound wave.

Formed at a fundamental frequency or an overtone.

Occurs when a vibrating tuning fork causes a rubber band to vibrate.

A longitudinal wave that is caused by vibrations and travels through a material medium.

A sound that consists of a random mix of frequencies.

The result of the blending of several pitches through interference.

A wave in which the particles of the medium vibrate parallel to the direction of wave motion.