SCMH 1010 EXAM 2 VOGEL (6,8,10,12)
QUESTIONS AND ANSWERS GRADED A+
2026
What are the tree types of waves and how do they work? Be able to give an example of each. -
ANS Longitudinal: Radiating spherical pulses or push-pull waves; Compress and decompress
as they travel, like a coiled spring
Transverse: side-to-side waves; Energy travels at right angles to the direction of moving
particles. Generally, only transmitted through solids and air (electromagnetic radiation)
Orbital: a.k.a interface waves, these are ocean surface waves
What do the parameters of
wavelength:
amplitude:
frequency:
mean? - ANS distance b/t crest or distance between crests, or the highest points of adjacent
waves
is the height of the wave crest above the undisturbed position
is the number of wave crests that go by a given point every second.
@COPYRIGHT 2026/2027 ALL RIGHTS RESERVED
1
, How does the frequency of a low pitched instrument different from the frequency of a high
pitched instrument? - ANS low pitch = low frequency, high pitch = high frequency
What are the differences between constructive and destructive interference? -
ANS Constructive interference is in-phase and destructive interference is out-of-phase
Be able to solve problems of involving speed of sound, wavelength, and frequency - ANS V=
wavelength x frequency
Be able to interpret the electromagnetic spectrum in terms of frequency and wavelength. -
ANS
Be able to interpret wave changes:
transmission
reflection
absorption
refraction
diffraction / scattering - ANS T: The wave will often pass right through matter
R: Mirrors, on the other hand, scatter visible light at the same angle as the original wave
A: asphalt driveway on a summer day, may soak up the wave and its energy
R: slowing down of light as it passes through a transparent material causes the light to change
its direction slightly as in a lens or a glass of water
D/S: electromagnetic waves may be absorbed and rapidly
What frequencies / wavelengths are used for communication? What federal agency
directcommunications 'traffic'? - ANS Radio Waves: amplitude modulation (AM) and
frequency modulation
FCC (federal communications system)
@COPYRIGHT 2026/2027 ALL RIGHTS RESERVED
2
QUESTIONS AND ANSWERS GRADED A+
2026
What are the tree types of waves and how do they work? Be able to give an example of each. -
ANS Longitudinal: Radiating spherical pulses or push-pull waves; Compress and decompress
as they travel, like a coiled spring
Transverse: side-to-side waves; Energy travels at right angles to the direction of moving
particles. Generally, only transmitted through solids and air (electromagnetic radiation)
Orbital: a.k.a interface waves, these are ocean surface waves
What do the parameters of
wavelength:
amplitude:
frequency:
mean? - ANS distance b/t crest or distance between crests, or the highest points of adjacent
waves
is the height of the wave crest above the undisturbed position
is the number of wave crests that go by a given point every second.
@COPYRIGHT 2026/2027 ALL RIGHTS RESERVED
1
, How does the frequency of a low pitched instrument different from the frequency of a high
pitched instrument? - ANS low pitch = low frequency, high pitch = high frequency
What are the differences between constructive and destructive interference? -
ANS Constructive interference is in-phase and destructive interference is out-of-phase
Be able to solve problems of involving speed of sound, wavelength, and frequency - ANS V=
wavelength x frequency
Be able to interpret the electromagnetic spectrum in terms of frequency and wavelength. -
ANS
Be able to interpret wave changes:
transmission
reflection
absorption
refraction
diffraction / scattering - ANS T: The wave will often pass right through matter
R: Mirrors, on the other hand, scatter visible light at the same angle as the original wave
A: asphalt driveway on a summer day, may soak up the wave and its energy
R: slowing down of light as it passes through a transparent material causes the light to change
its direction slightly as in a lens or a glass of water
D/S: electromagnetic waves may be absorbed and rapidly
What frequencies / wavelengths are used for communication? What federal agency
directcommunications 'traffic'? - ANS Radio Waves: amplitude modulation (AM) and
frequency modulation
FCC (federal communications system)
@COPYRIGHT 2026/2027 ALL RIGHTS RESERVED
2
