Sound Wave Science 2006 6th grade
Terms
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- a reflected sound wave
- echo
- the ability of a material to bounce back after being diturbed
- elasticity
- the ratio of the mass of a substance to its volume
- density
- perception of the energy of a sound
- loudness
- the amount of energy per second carried through a unit area by a wave
- intensity
- a unit used to compare the loudness of different sounds
- decibels (dB)
- perception of the frequency of a sound
- pitch
- sound waves with frequencies above 20,000 Hz
- ultra sound
- sound waves with frequencies below 20 Hz
- infra sound
- two folds of tissue that make up the human voice box
- larynx
- the change in frequency of a wave as its source moves in relation to an observer
- doppler effect
- a set of tones and overtones combined in a way that is pleasing
- music
- the lowest natural frequency of an object
- fundamental tone
- a natural frequency that is a multiple of the fundamental tone's frequency
- overtone
- the study of how sounds interact with each other and their surroundings
- acoustics
- the echoss of a sound that are heard after a sound source stops producing sound waves
- reverberation
- a narrow region leading from the outside of the ear to the eardrum
- ear canal
- a small tightly stretched drumlike membrane in the ear
- ear drum
- a fluid filled cavity in the ear that is shaped like a snail shell
- choclea
- the use of reflected sound waves to determine distances or to locate objects
- echolocation
- a sustem that uses reflected sound waves to detect and locate underwater objects
- sonar
- an image formed using reflected ultrasound waves
- sonogram