Sound Properties
Sound Interactions
The Ear
Electromagnetic Waves
Electromagnetic Spectrum
100
Sound is what type of wave?
What is a longitudinal wave?
100
When sound bounces off a surface.
What is reflection?
100
The part of the ear with the ear drum and three tiny bones that amplifies the sound energy.
What is the middle ear?
100
Electromagnetic waves are what type of wave?
What is transverse?
100
The part of the electromagnetic spectrum with the most energy that can be used to kill cancer cells.
What are gamma rays?
200
Sound is caused when matter does what?
What is vibrates?
200
When an object vibrates at its natural frequency.
What is resonance?
200
The part of the ear with the ear canal that gathers sound waves.
What is the outer ear?
200
True or False: electromagnetic waves can travel through empty space as well as matter.
What is true?
200
The part of the electromagnetic spectrum that we feel as heat and is seen by night vision goggles.
What is infrared?
300
True or False: Sound can travel through empty space as well as through matter.
What is false?
300
When sound energy is transferred to the medium through which it travels.
What is absorption?
300
The part of the ear with the fluid-filled cochlea that converts sound waves to nerve signals that are sent to the brain.
What is the inner ear?
300
The two parts of an electromagnetic wave.
What are the magnetic and electric fields?
300
The part of the electromagnetic spectrum that has the second longest wavelength and is used for cell phone communication.
What are microwaves?
400
Sound travels fastest through what state of matter?
What is a solid?
400
When sound energy passes through a medium.
What is transmission?
400
The unit of measure for loudness.
What are decibels (dB)?
400
When the frequency of an electromagnetic wave increases, the wavelength _______.
What is decreases?
400
The part of the electromagnetic spectrum with shorter wavelengths than visible light and can be used to kill germs.
What is ultraviolet?
500
What is the effect of temperature on the speed of sound in each of the three states of matter?
What is faster when solids and liquids are colder and when gases are warmer?
500
The collection of sound waves and their reflections
What is reverberation?
500
The apparent change in pitch of a sound as the sound moves in relation to the observer.
What is the Doppler Effect?
500
What the energy of an electromagnetic wave depends on.
What is frequency?
500
The part of the electromagnetic spectrum with the longest wavelength and are used for communication.
What are radio waves?
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