Ch 15 Question Preview (ID: 6224)
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Radio waves are an example of electromagnetic waves
a) true
b) false
c)
d)
according to the Doppler effect, light from a star moving away from Earth will have a higher frequency than light from a star moving toward the Earth
a) true
b) false
c)
d)
light waves are examples of transverse waves
a) true
b) false
c)
d)
as the period of a wave increases, the frequency increases
a) true
b) false
c)
d)
when light passes from air to glass, the light may change direction due to reflection
a) true
b) false
c)
d)
A person is standing still and listening to a siren sounding an alarm. Tghe frequency of the sounmd is 500Hz. The person begins to run toward the sound at a rate of 20 m/a. The
a) remain the same
b) increase
c) decrease
d) change by 20 m/s
sound waves from a radio generally travel in which medium
a) air
b) water
c) earth
d) light
our eyes can detect light only within a range of __ called visible light
a) frequencies
b) speeds
c) medium
d) periods
the max displacement of a particle by a wave is called
a) amplitude
b) wavelength
c) frequency
d) period
the ______ is the distance between two crests of a wave
a) amplitude
b) wavelength
c) frequency
d) period
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