Question 1

Fourier discovered that periodic waves can be represented by

Accepted Answer

A) a series of non-periodic waves. 
B) the summation of a series of simple sine waves. 
C) a binary code. 
D) pulses of the same amplitude. 
A) a series of non-periodic waves. 
B) the summation of a series of simple sine waves. 
C) a binary code. 
D) pulses of the same amplitude. B

Question 2

The pitch of a musical sound depends on the sound wave's

Accepted Answer

A) wavelength. 
B) frequency. 
C) speed. 
D) amplitude. 
E) all of these 
A) wavelength. 
B) frequency. 
C) speed. 
D) amplitude. 
E) all of these B

Question 3

Compared to a sound of 30 decibels,a sound of 60 decibels is

Accepted Answer

A) twice as intense. 
B) 10 times as intense. 
C) 100 times as intense. 
D) 1000 times as intense. 
E) 10,000 times as intense. 
A) twice as intense. 
B) 10 times as intense. 
C) 100 times as intense. 
D) 1000 times as intense. 
E) 10,000 times as intense. D

Question 4

The fundamental frequency of a violin string is 440 hertz.The frequency of its second harmonic is

Accepted Answer

A) 220 hertz. 
B) 440 hertz. 
C) 880 hertz. 
D) None of the above choices are correct. 
A) 220 hertz. 
B) 440 hertz. 
C) 880 hertz. 
D) None of the above choices are correct.

Question 5

All other things being the same,strings having more mass than other strings will produce

Accepted Answer

A) higher frequency notes. 
B) lower frequency notes. 
C) the same frequency notes. 
A) higher frequency notes. 
B) lower frequency notes. 
C) the same frequency notes.

Question 6

The loudness of a sound is most closely related to its

Accepted Answer

A) speed. 
B) frequency. 
C) wavelength. 
D) intensity. 
A) speed. 
B) frequency. 
C) wavelength. 
D) intensity.

Question 7

Reverberation is a phenomenon you would be most likely to hear if you sing in

Accepted Answer

A) the shower. 
B) a small drape-covered room. 
C) a large drape-covered room. 
D) the desert. 
A) the shower. 
B) a small drape-covered room. 
C) a large drape-covered room. 
D) the desert.

Question 8

About how many octaves are present between 20 hertz and 2560 hertz?

Accepted Answer

A) 5 
B) 6 
C) 7 
D) 8 
E) 9 
A) 5 
B) 6 
C) 7 
D) 8 
E) 9

Question 9

The quality of a musical note has to do with its

Accepted Answer

A) loudness. 
B) frequency. 
C) harmonics. 
D) amplitude. 
E) All of the above choices are correct. 
A) loudness. 
B) frequency. 
C) harmonics. 
D) amplitude. 
E) All of the above choices are correct.

Question 10

As we become older,the frequency range of human hearing

Accepted Answer

A) decreases. 
B) increases. 
C) remains relatively constant. 
A) decreases. 
B) increases. 
C) remains relatively constant.

Question 11

The frequency of a note one octave higher in pitch than a 440-Hz note is

Accepted Answer

A) 1760 Hz. 
B) 880 Hz. 
C) 440 Hz. 
D) 220 Hz. 
E) 110 Hz. 
A) 1760 Hz. 
B) 880 Hz. 
C) 440 Hz. 
D) 220 Hz. 
E) 110 Hz.

Question 12

About how many octaves are present between 100 hertz and 1600 hertz?

Accepted Answer

A) 4 
B) 5 
C) 6 
D) 7 
E) 8 
A) 4 
B) 5 
C) 6 
D) 7 
E) 8

Question 13

A decibel is a measure of a sound's

Accepted Answer

A) frequency. 
B) wavelength. 
C) speed. 
D) loudness. 
E) all of these 
A) frequency. 
B) wavelength. 
C) speed. 
D) loudness. 
E) all of these

Question 14

High pitched sound has a high

Accepted Answer

A) speed. 
B) frequency. 
C) number of partial tones. 
D) All of the above choices are correct. 
E) None of the above choices are correct. 
A) speed. 
B) frequency. 
C) number of partial tones. 
D) All of the above choices are correct. 
E) None of the above choices are correct.

Question 15

What is the threshold of hearing?

Accepted Answer

A) 10 decibel 
B) 1 decibel 
C) 0)1 decibel 
D) 0)01 decibel 
E) None of the above choices are correct. 
A) 10 decibel 
B) 1 decibel 
C) 0)1 decibel 
D) 0)01 decibel 
E) None of the above choices are correct.

Question 16

Compared to a sound of 40 decibels,a sound of 50 decibels is

Accepted Answer

A) 10 times as intense. 
B) 100 times as intense. 
C) 1000 times as intense. 
D) 10,000 times as intense. 
E) more than 10,000 times as intense. 
A) 10 times as intense. 
B) 100 times as intense. 
C) 1000 times as intense. 
D) 10,000 times as intense. 
E) more than 10,000 times as intense.

Question 17

The loudness of a musical sound is a measure of the sound wave's

Accepted Answer

A) wavelength. 
B) frequency. 
C) speed. 
D) amplitude. 
E) all of these 
A) wavelength. 
B) frequency. 
C) speed. 
D) amplitude. 
E) all of these

Question 18

As we grow older,we have the greatest difficulty hearing frequencies that are

Accepted Answer

A) low. 
B) mid-range. 
C) high. 
A) low. 
B) mid-range. 
C) high.

Exam 21: Musical Sounds

Fourier discovered that periodic waves can be represented by

The pitch of a musical sound depends on the sound wave's

Compared to a sound of 30 decibels,a sound of 60 decibels is

The fundamental frequency of a violin string is 440 hertz.The frequency of its second harmonic is

All other things being the same,strings having more mass than other strings will produce

The loudness of a sound is most closely related to its

Reverberation is a phenomenon you would be most likely to hear if you sing in

About how many octaves are present between 20 hertz and 2560 hertz?

The quality of a musical note has to do with its

As we become older,the frequency range of human hearing

The frequency of a note one octave higher in pitch than a 440-Hz note is

About how many octaves are present between 100 hertz and 1600 hertz?

A decibel is a measure of a sound's

High pitched sound has a high

What is the threshold of hearing?

Compared to a sound of 40 decibels,a sound of 50 decibels is

The loudness of a musical sound is a measure of the sound wave's

As we grow older,we have the greatest difficulty hearing frequencies that are

About Science

Newtons First Law of Motion: Inertia

Linear Motion

Newtons Second Law of Motion: Force and Acceleration

Newtons Third Law of Motion: Action and Reaction

Momentum

Energy

Rotational Motion

Gravity

Projectile and Satellite Motion

Atomic Nature of Matter

Solids

Liquids

Gases and Plasmas

Temperature,heat,and Expansion

Heat Transfer

Change of Phase

Thermodynamics

Vibrations and Waves

Sound

Electrostatics

Electric Current

Magnetism

Electromagnetic Induction

Properties of Light

Color

Reflection and Refraction

Light Waves

Light Emission

Light Quanta

The Atom and the Quantum

Atomic Nucleus and Radioactivity

Nuclear Fission and Fusion

Special Theory of Relativity

General Theory of Relativity

Filters