One of three ways heat is transferred from one place to another
What is infrared?
100
The change in direction of a wave front at an interphase between two different media so that the wave front returns into the medium from which it originated
What is reflection?
100
An interference pattern between two sounds of slightly different frequencies, perceived as a periodic variation in volume whose rate is difference of the two frequencies
What is beats?
100
The lowest point that the medium sinks to
What is trough?
100
The distance that light, which moves at a constant speed, travels in one year
What is light year?
200
Has a wavelength shorter that than of the violet end of the visible spectrum
What is ultraviolet?
200
Impenetrable by light; neither transparent nor translucent
What is opaque?
200
The distance between successive crests of a wave, especially points in a sound wave or electromagnetic wave
What is a wave length?
200
The SI unit of frequency
What is hertz?
200
The sensation of a frequency
What is pitch?
300
The rate at which a vibration occurs or is repeated over a particular period of time or in a given sample
What is frequency?
300
The physical property of allowing light to pass through the material without being scattered
What is transparent?
300
The transport of energy of energy without the transport of matter
What are waves?
300
The point on a wave with the maximum value of upward displacement within a cycle
What is crest?
300
Phenomenon in which a vibration system of external force drives another system to oscillate with greater amplitude at specific frequencies
What is resonance?
400
An oscillation of the parts of a fluid or an elastic solid whose equilibrium has been disturbed, or of an electromagnetic wave
What is vibration?
400
A particle representing a quantum of light or other electromagnetic radiation. It carries energy proportional to the radiation frequency but has zero rest mass
What is photon?
400
A region in a longitude wave where the particles are closest together
What is compression?
400
The area of low relative pressure following a shock wave
What is rarefaction?
400
Time needed for one complete cycle of vibration to pass in a given point
What is period?
500
The maximum extent of a vibration or oscillation, measured from the position of equilibrium
What is amplitude?
500
An increase in the frequency of sound, light, or other waves as the source and observer move toward each other
What is Doppler effect?
500
The sound associated with the shock waves created whenever an object traveling through the air travels faster than the speed of sound
What is sonic boom?
500
The range of wavelengths or frequencies over which electromagnetic radiation extends
What is electromagnetic spectrum?
500
Refers to anything above the frequencies of audible sounds, and nominally includes anything over 20,000 Hz