Terms
This is a disturbance that moves energy from place to place.
A wave
This is what we call the science of sounds.
Acoustics
It moves through matter in waves.
Sound
This is what Smooth, hard surfaces usually do to sound.
Reflect
This is a sound wave that bounces back toward its source and is heard again.
A wavelength
The intensity of a sound is measured in this.
Decibels
This is how high or low a sound is.
Pitch
Objects that vibrate quickly have this kind of pitch.
High pitch
Most sounds we hear travels through this.
Air
This is a vibration that can be heard.
Sound
This is what rough, fuzzy surfaces usually do to sound.
Absorb
The loudness or softness of a sound is called this.
Its volume
This is a machine that changes sound waves into electrical pictures seen on a graph.
Oscilloscope
The part of a sound wave where the motion of each vibration pushes together some of the particles of matter is called this.
Compression
Most of the sounds that we hear are this of several waves.
a blend
A harsh, unwanted, or surprising sound is often called this.
noise
Musical instruments that are played at the same pitch and volume still sound different because of this.
Timbre
Both singing and speaking are caused by vibrations of the vocal cords inside this part of the body.
Larynx/ Voice box
They travel in all directions, away from the source of the sound.
Sound waves
Sound waves that travel through matter are described as this.
Mechanical waves