pitch
An indication of how high or low a sound is, which is primarily determined by the frequency of the sound wave.
decibel
unit of measurement for the intensity of sounds
vibration
a disturbance that causes a wave
What are the mediums sound travels through?
solids, liquids, and gases
reflection
Energy waves bouncing off the surface of an object (mirrors or echoes return energy back to their source)
How do sound waves travel?
air particles vibrate along the path of a sound wave
Which medium allows sound to travel fastest?
solids
sound waves
a longitudinal wave consisting of compressions and rarefactions, which travels through a medium
reflection
The bouncing of waves off an object
What type of wave moves parallel to the wave energy?
Longitudinal
Which type of wave contains compressions and rarefactions?
Compressonial
What is a Wave?
A disturbance that travels from one place to another transporting energy, but not necessarily matter, along with it.
What is a medium
It is a continuous collection of the same type of material through which a wave travels (solids, liquids or gasses)
Wave Speed
The speed at which a wave travels through a medium. (frequency x wavelength)
Constructive Interference
the interaction among two or more waves in which displacements combine to produce a wave with a larger displacement
Destructive interference
the interaction among two or more waves in which displacements combine to produce a wave with a smaller displacement
Resonance
a state that is reached by vibrating a medium at its natural frequency
Amplitude
Maximum distance a wave varies from its rest position
Wavelength
The distance from two corresponding (or the same) parts of a wave.
Frequency
How many waves can pass a given point per second, measured in Hertz (Hz)
Crest
Highest point of a wave
Trough
Lowest point of a wave.
Energy
Is the ability to do work.
Loudness
Is the human perception of sound intensity
What two factors does loudness depend on?
1. Amount of energy.2. Distance from the source.
Doppler Effect
A change in sound frequency caused by motion of the sound source, motion of the listener, or both.
Compression
The part of a longitudinal wave where the particles of the medium are close together.
Rarefactions
The part of a longitudinal wave where the particles of the medium are farther apart.
Why can't sound travel in space?
Space has no medium for the wave to travel on.