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the thin membrane in the ear that vibrates when sound waves hit it
The absence of matter (molecules, atoms or any particles) in a volume of space
The total number of waves passing per second (measured in Hertz)
Is half the total height of the wave, that tells you how much energy the sound has or how LOUD it is
Is how high or how low the note is. High pitch is the same as high frequency.
sound being reflected from a surface
The frequencies of sound an animal or human can hear
A very high frequency sound that cannot be heard by humans
A wave that transmits sound by particles vibrating in either a solid, liquid or gas.
The squashing together of particles
The spreading apart of particles
A system that uses ultrasound to detect underwater objects or to determine the depth of the water
The unit of measurement of sound intensity or loudness
the unit of frequency
Used to protect ears from noise