A
To produce sound, an object must be _________.
vibrating
Which part of the ear is responsible for sending signals about sound to the brain?
inner ear
Which part of the ear is responsible for collecting sound waves?
outer ear
Which part of the ear is responsible for amplifying sound?
middle ear
Sound is a form of ________ energy.
mechanical
In which of the following temperatures of air would sound travel slowest?
-5 degrees Celsius 0 degrees Celsius
15 degrees Celsius 25 degrees Celsius
-5 degrees Celsius
Which of the following media can sound NOT travel through?
metal water
empty space air
empty space
bats use this to find their way
echolocation
humans have added many sources of noise
noise pollution
a wave bouncing off a surface
reflection
rooms can be designed to be soundproof
acoustics
sound passes from one room to another
transmission
uses echoes to map the ocean floor
sonar
Reverberation in concert halls is caused by _______.
reflection
Sounds with very high frequencies that are used to break down kidney stones are called ______.
ultrasonic
Dolphins use a process called ______ to determine an object's shape, distance, and speed.
echolocation
________ is used to check development of an unborn baby inside a mother's body.
sonograms
Frank was listening to a piano in a closed room. The collection of reflected sounds from the surfaces in a closed space are called ______.
reverberation
When swimming, Mark yelled while underwater. His brother Scott only heard a little bit of what he yelled. The rest of the sound waves stayed in the water because of ______.
absorption
Sound travels fastest in a _____.
solid
The number of cycles or waves passing a particular point every second is the ________.
frequency
vocal cords
The number and intensity of ______ produced by each instrument are different and give instruments their distinctive sound quality.
overtones
If you pass a building with a siren sounding, as you move away from the building, the sirens will sound ______.
lower
Resonance can be used to ______ sound.
amplify