Chapter 5 Flashcards
A Doppler red shift indicates
a shift toward higher frequencies.
a shift toward shorter wavelengths.
that a light source is approaching.
None of these
None of these
A certain radio wave has a frequency of 1.03 MHz. What is the wavelength?
2.91 x 102 m.
2.91 x 103 m.
2.91 x 104 m.
2.91 x 105 m.
2.91 x 102 m.
A series of ocean waves, each 6.0 m from crest to crest, moving past an observer at a rate of 2.0 waves per second, has what speed?
4 m/s.
8 m/s.
12 m/s.
16 m/s.
12 m/s.
An increase of 20 dB increases the sound intensity by a factor of
- 20.
100.
Electromagnetic waves are
longitudinal.
transverse.
a combination of these.
transverse.
For a longitudinal mechanical wave, the particle motion is:
perpendicular to the direction of the wave velocity.
both parallel and perpendicular to the direction of the wave velocity.
parallel to the direction of the wave velocity
in all directions
parallel to the direction of the wave velocity
For a transverse mechanical wave, the particle motion is
both parallel and perpendicular to the direction of the wave velocity.
parallel to the direction of the wave velocity.
perpendicular to the direction of the wave velocity.
in all directions.
perpendicular to the direction of the wave velocity.
If a wave has a frequency of 1 Hz, it has a period of
1/2 s.
2.5 s.
2 s.
1 s.
1 s.
Light can travel to the Earth from a distant star, but sound cannot. Why is this?
Light is an electromagnetic wave and sound requires a medium.
The Sun does not make sound.
Light is a longitudinal wave and sound is a transverse wave.
The statement is false; both will travel in empty space.
Light is an electromagnetic wave and sound requires a medium.
Light waves travel fastest in
water.
glass.
a vacuum.
air.
a vacuum.
Resonance occurs when
two different objects vibrate with different frequencies.
two different objects produce beats.
an object having a certain natural frequency is set in vibration by a second object vibrating at that frequency.
an object produces a sound.
an object having a certain natural frequency is set in vibration by a second object vibrating at that frequency.
Sound is a(n)
longitudinal wave.
electromagnetic wave.
transverse wave.
standing wave.
longitudinal wave.
The major difference between transverse and longitudinal waves is the
direction of the wave motion.
phase difference.
direction of the particle displacement with respect to the direction of wave motion.
direction of the particle displacement.
direction of the particle displacement with respect to the direction of wave motion.
The region of the electromagnetic spectrum with wavelengths just greater than the ultraviolet region is the ___________ region.
visible
infrared
microwave
X-ray
visible
Wave amplitude is related to
wave velocity.
frequency.
energy.
wavelength.
energy.
Wave frequency could be given in
newtons
slugs
Hz
watt
Hz
Wave frequency is inversely proportional to
amplitude.
period.
wave velocity.
All of these
period.
Wave velocity is inversely proportional to
period.
wavelength.
amplitude.
All of these
period.
What is the frequency in hertz of a sound wave (v = 340 m/s) with a wavelength of 0.20 m?
1.7 x 103 Hz.
1.7 x 104 Hz.
1.7 x 105 Hz.
1.7 x 106 Hz.
1.7 x 103 Hz.
What is the wavelength in meters of radio waves produced by a radio station with a frequency of 1400 kHz?(c = 3.00 x 108 m/s)
1.1 x 102 m.
2.1 x 102 m.
3.1 x 102 m.
4.1 x 102 m.
2.1 x 102 m.
Which of the following characterizes a wave?
wavelength
amplitude
period
All of these
All of these
Which of the following electromagnetic radiations has the greatest frequency?
ultraviolet
infrared
radio
visible
ultraviolet
Which of the following radiation has the smallest frequency?
infrared
visible
ultraviolet
X-rays
infrared
Which of the following radiations has the longest wavelength?
infrared
visible
ultraviolet
X-rays
infrared
