7th grade, Sound and Light ch. 2 "SOUND"

The frequency of the sound wave produced by a string increases as tension of string DECREASES

How well sounds can be heard in a particular room or hall is described by

Why did Yeager's team choose a high altitude to break the sound barrier?

The speed of sound in air DECREASES with increasing temperature

Which part of your ear do sound waves enter through?

You can hear sounds from around corners b/c of

At what level can sounds damage the ears?

Loudness or sound level, is measured in units called

A system of detecting reflected sound waves is

What is a mixture of sound waves that do not sound pleasing together called?

Sound waves with frequencies above 20,000Hz are called

Sound is a disturbance that travels through a medium as a

The first person to break the sound barrier was

What occurs when two or more sound waves interact?

The basic groups of musical instruments are

Dolphins use SONOGRAMS to hunt at night.

Sound waves are LONGITUDINAL

The study of how sounds interact with each other and the environment is REVERBERATION.

Sound waves with frequencies below the normal human range of hearing are called

As a sound source moves toward a listener, the pitch

The compressions/rarefaction that make up a sound wave traveling through the air are

The hammer, anvil, and stirrup are bones that make up the INNER ear.

A fundamental tone has only one

The amount of energy a sound wave carries per second through a unit area is its

What do some bats use to locate food and to navigate?

What is a set of tones combined in a way that is pleasing to the ear?

Interference occurs when two or more sound waves INTERACT.

It is not safe to put objects into your ear, even to clean it.

Which of the following can cause hearing loss?

The speed of sound depends on

Which term refers to how high or low a sound seems to a person?

What type of musical instrument is a xylophone?

The pitch of a sound that you hear depends on the sound wave's

Which part of your ear sends the message to your brain that you've heard a sound?

Doctors are able to make sonograms through the use of

If a sound source is moving towards you, you will hear a HIGHER pitch.

The most common type of hearing loss is due to

The loudness of a sound that can just barely be heard is 100 dB

The changing pitch of a police car's siren as it moves by you is an example of

The ability of a material to bounce back after being disturbed is called