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level: Waves and human hearing (HARD)

Questions and Answers List

level questions: Waves and human hearing (HARD)

Question	Answer
Waves in which the particles of the medium vibrate parallel to the direction of wave propagation.	Longitudinal Waves
What are longitudinal waves?	Waves in which the particles of the medium vibrate parallel to the direction of wave propagation.
The region of a longitudinal wave where the particles are closest together.	Compression
What is compression?	The region of a longitudinal wave where the particles are closest together.
The region of a longitudinal wave where the particles are farthest apart.	Rarefaction
What is rarefaction?	The region of a longitudinal wave where the particles are farthest apart.
Rapid back-and-forth movements of particles or objects.	Vibrations.
What do sound waves cause in the particles of the medium?	Vibrations.
A substance through which a wave travels.	Medium
What is a medium in the context of waves?	A substance through which a wave travels.
A space entirely devoid of matter.	Vacuum
Why can't sound waves travel through a vacuum?	Because there are no particles to vibrate.
A thin membrane that separates the outer ear from the middle ear and vibrates in response to sound waves.	Ear Drum
What is the ear drum?	A thin membrane that separates the outer ear from the middle ear and vibrates in response to sound waves.
A spiral-shaped, fluid-filled structure in the inner ear responsible for converting sound vibrations into electrical signals.	Cochlea
What is the cochlea?	A spiral-shaped, fluid-filled structure in the inner ear responsible for converting sound vibrations into electrical signals.
A bundle of nerve fibers that carries electrical signals from the cochlea to the brain.	Auditory Nerve
What is the auditory nerve?	A bundle of nerve fibers that carries electrical signals from the cochlea to the brain.
The organ responsible for processing sensory information, including sound signals received from the auditory nerve.	Brain
What part of the body interprets electrical signals received from the cochlea?	The brain.
The range of frequencies within which a particular phenomenon or device operates effectively.	Frequency Range
What is the frequency range of human hearing?	20 Hz to 20 kHz (20,000 Hz).
The process of changing one form of energy into another.	Conversion
What process occurs in the cochlea regarding sound waves?	Conversion of sound vibrations into electrical signals.