Exam 6: Nuclear Physics

The minimum sound intensity that can be detected by the human ear is called the ______________ of hearing.

The region of the electromagnetic spectrum with wavelengths just less than those in the infrared region is the ______________ region.

Electromagnetic waves are

For a standing wave in a rope or string, the points that remain stationary are called ______________.

The audible range of sound is from 20 Hz to ______________ kHz.

Which of the following sound frequencies lie(s) in the audible range?

Approximately how many times faster is the speed of light in vacuum than the speed of sound in air?

What is the frequency of yellow-green light that has a wavelength of 550 nm?

If a wave has a frequency of 8 Hz, it has a period of

A series of ocean waves, each 12.0 m from crest to crest and moving past an observer at a rate of 6.0 waves per second, has what speed?

If the intensity of a sound is increased by a factor of 100, how is the decibel level affected?

What are the wavelength limits, in meters, of the audible region of the sound spectrum (v = 344 m/s)?

What is the wavelength, in meters, of radio waves produced by a radio station with a frequency of 1400 kHz? (c = 3.00 $\times$ 10⁸ m/s)

Which of the following sound frequencies lie(s) in the audible range?

A wave is a propagation of ______________.

A particular sound with large intensity is reduced 1000-fold. What is the decibel reduction?

For a wave with a constant speed, the greater the frequency of the wave, the _____________ its wavelength.

In general, the speed of sound increases as the density of a medium _____________.

As a truck moves away from a person with its horn blowing, the person hears a frequency ______________ than that of the horn.

A sound level of 96 dB is how many times as intense as one of 90 dB?