Sound Review 1

When an object moves faster than the speed of sound it creates a ___.

This vibrates and sends sound waves to the middle ear.

Sound travels in a ________wave

Part of the ear that sends electrical signals to the brain in order to interpret sound.

Speed of sound is determined by _____.

A sound intensity above _____dB (decibels) may cause permanent hearing loss.

What is the unit for sound intensity/loudness?

A wave will travel only as long as it has _______ to carry

Sound waves in front of a fast-moving object (that is emitting sound) will be________.

Sound waves cannot travel through this.

The purpose of the middle ear is to ___.

The part of the ear that is visible.

As the amplitude of a sound wave increases, the loudness ________.

Bats use ____to navigate and find prey.

Repeating disturbances that transfer energy in a medium are called _____.

The speed of sound in water depends on the ___.

A naval ship uses the reflection of underwater sound waves to locate objects. This is called ___.

The energy that a wave carries is measured by its

Sound produced by musical instruments is amplified by

Sound waves are _______waves that can travel through matter.

To produce sound an object must be ___.

A _____ is what a mechanical wave needs to travel through.