SCMH 1010 EXAM 2 - VOGEL (UPDATED)
EXAM QUESTIONS AND ANSWERS
GRADED A+ 2026
What aspect of a sound wave makes it seem loud to people hearing the sound? -
ANS amplitude
Sound waves with low frequencies: - ANS have low pitches.
Gamma radiation is a shorter wavelength than: - ANS all of the above
(visible light
X-rays
radio waves
microwaves)
Human eyes are most sensitive to this color. - ANS yellow
Cats' eyes are more sensitive to__________ than humans'. - ANS infrared waves
@COPYRIGHT 2026/2027 ALL RIGHTS RESERVED
1
,Of the types of radiation listed below, the only one that humans can detect is: - ANS none of
the above
Line-of-sight communications and radar rely heavily on what type of electromagnetic wave? -
ANS microwaves
All electromagnetic waves travel at: - ANS 300,000 km/sec
Turning up the volume of music or speaking louder means that the sound wave has changed: -
ANS amplitude
When we hear a sound change from a higher to a lower pitch, this means: - ANS the
frequency has changed.
Which sound wave frequency is outside the range of a human's ability to detect? - ANS 5 Hz
Which type of radiation can be used to sterilize medical equipment? - ANS ultraviolet
radiation
The higher the frequency of a sound wave: - ANS the shorter the wavelength.
The Doppler effect describes: - ANS change in wave frequency when source or receiver is
moving.
How fast can light travel in one second, if it is moving through a vacuum? - ANS 300,000
kilometers
Which property of electromagnetic waves is measured in Hertz? - ANS frequency
@COPYRIGHT 2026/2027 ALL RIGHTS RESERVED
2
, Which of the following is the same for all kinds of electromagnetic waves? - ANS speed
The fundamental difference between electromagnetic waves and other types of waves is that
electromagnetic waves: - ANS transfer energy without transferring mass.
Another word for constructive interference is: - ANS reinforcement
Which of the following is totally a longitudinal wave? - ANS Sound
If a light wave passes through a medium, the wave is ________. - ANS Transmitted
When these waves meet, what type of interference pattern do they form? - ANS Constructive
Which of the following ranges of electromagnetic radiation has the shortest wavelength? -
ANS UV (ultra-violet)
For which type of wave is spherical series of concentric dilations and contractions traveling
outward from the source? - ANS Longitudinal wave
What will be the amplitude of the resulting wave if the upper and lower wave meet in their
present states? - ANS 2 inches
The unit for electric current is which of the following? - ANS Ampere
When you persistently rub a piece of amber with dry wool or fur, what happens? - ANS The
amber will build up a static electrical charge
Static electricity exists when there is an unbalance among the number of: - ANS Electrons
@COPYRIGHT 2026/2027 ALL RIGHTS RESERVED
3
EXAM QUESTIONS AND ANSWERS
GRADED A+ 2026
What aspect of a sound wave makes it seem loud to people hearing the sound? -
ANS amplitude
Sound waves with low frequencies: - ANS have low pitches.
Gamma radiation is a shorter wavelength than: - ANS all of the above
(visible light
X-rays
radio waves
microwaves)
Human eyes are most sensitive to this color. - ANS yellow
Cats' eyes are more sensitive to__________ than humans'. - ANS infrared waves
@COPYRIGHT 2026/2027 ALL RIGHTS RESERVED
1
,Of the types of radiation listed below, the only one that humans can detect is: - ANS none of
the above
Line-of-sight communications and radar rely heavily on what type of electromagnetic wave? -
ANS microwaves
All electromagnetic waves travel at: - ANS 300,000 km/sec
Turning up the volume of music or speaking louder means that the sound wave has changed: -
ANS amplitude
When we hear a sound change from a higher to a lower pitch, this means: - ANS the
frequency has changed.
Which sound wave frequency is outside the range of a human's ability to detect? - ANS 5 Hz
Which type of radiation can be used to sterilize medical equipment? - ANS ultraviolet
radiation
The higher the frequency of a sound wave: - ANS the shorter the wavelength.
The Doppler effect describes: - ANS change in wave frequency when source or receiver is
moving.
How fast can light travel in one second, if it is moving through a vacuum? - ANS 300,000
kilometers
Which property of electromagnetic waves is measured in Hertz? - ANS frequency
@COPYRIGHT 2026/2027 ALL RIGHTS RESERVED
2
, Which of the following is the same for all kinds of electromagnetic waves? - ANS speed
The fundamental difference between electromagnetic waves and other types of waves is that
electromagnetic waves: - ANS transfer energy without transferring mass.
Another word for constructive interference is: - ANS reinforcement
Which of the following is totally a longitudinal wave? - ANS Sound
If a light wave passes through a medium, the wave is ________. - ANS Transmitted
When these waves meet, what type of interference pattern do they form? - ANS Constructive
Which of the following ranges of electromagnetic radiation has the shortest wavelength? -
ANS UV (ultra-violet)
For which type of wave is spherical series of concentric dilations and contractions traveling
outward from the source? - ANS Longitudinal wave
What will be the amplitude of the resulting wave if the upper and lower wave meet in their
present states? - ANS 2 inches
The unit for electric current is which of the following? - ANS Ampere
When you persistently rub a piece of amber with dry wool or fur, what happens? - ANS The
amber will build up a static electrical charge
Static electricity exists when there is an unbalance among the number of: - ANS Electrons
@COPYRIGHT 2026/2027 ALL RIGHTS RESERVED
3
