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Which term means " movement through a medium"? - ✔✔Propagation
What can be defined as a disturbance ( sound, light, radio waves) that moves through a
medium (air, water, vacuum)? - ✔✔Wave
What can be defined as a recurring disturbance advancing through space with or
without the use of a physical medium? - ✔✔Wave motion
Which type of waves are water waves known as because the motion of the water is up
and down, or at right angles to the direction in which the waves are traveling? -
✔✔Transverse
Which types of waves are waves in which the disturbance takes place in the direction of
propagation? - ✔✔Longitudinal
What is the vehicle through which the wave travels from one point to the next? -
✔✔Medium
What is the position called that a particle of matter would have if it were not disturbed
by wave motion? - ✔✔reference line
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,What is the distance in space occupied by one cycle of a radio wave at any given
instant? - ✔✔wavelength
which unit of measurement are wavelengths expressed in? - ✔✔meters
Which wave property gives a relative indication of the amount of energy the wave
transmits? - ✔✔amplitude
What is a continuous series of waves called having the same amplitude and
wavelength? - ✔✔wave train
The number of vibrations, or cycles, of a wave train in a unit of time is called the
frequency of the wave train and is measured in what? - ✔✔Hertz
Which propagation property is the rate at which the disturbance travels through the
medium, or the velocity with which the crest of the wave moves along? - ✔✔velocity
what is the time in which one complete vibratory cycle of events occurs? - ✔✔period
what is a wave called that is directed toward the surface of the mirror? - ✔✔incident
What is the angle between the reflected wave and the normal called? - ✔✔Angle of
reflection
In empty rooms or other confined spaces, sound may be reflected several times to cause
what is known as? - ✔✔reverberation
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, What is any disturbance, man0made or natural, that causes an undesirable response or
the degradation of a wave referred to as? - ✔✔interference
What is the most complex sound wave that can be produced? - ✔✔noise
What is light a form of? - ✔✔electromagnetic radiation
Current light theory says that light is made up of very small packets of electromagnetic
energy called what? - ✔✔Photons
Approximately how many miles per second does light travel? - ✔✔186,000
What is a large volume of light called? - ✔✔Beam
What is a narrow volume of light called? - ✔✔pencil
Which type of substance is one through which you can see clearly - ✔✔transparent
What are substances called through which some light rays can pass but through which
objects cannot be seen clearly because the rays are diffused? - ✔✔translucent
which year did Old Roemer discover that light travels approximately 186,000 miles per
second in space? - ✔✔1675
How many times in one second can a light beam circle the earth? - ✔✔7.5
Which term is used to designate the entire range of electromagnetic waves arranged in
order of their frequencies? - ✔✔spectrum
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