Quiz about Matter and Energy Test 5

Question 1

What is the result when two notes interfere harmoniously?

Accepted Answer

Consonance

Answer

Harmony

Answer

Melody

Answer

Dissonance

Question 2

What term refers to sound that has too low a frequency to be heard?

Accepted Answer

Infrasonic

Answer

Supersonic

Answer

Ultrasonic

Answer

Subsonic

Question 3

What is the effect of intensity on the way the human ear perceives sound?

Accepted Answer

Loudness

Answer

Frequency

Answer

Wavelength

Answer

Pitch

Question 4

What happens to a wave when it passes between two media?

Accepted Answer

bends toward the medium that causes slower speed

Answer

bends toward the medium that causes lower frequency

Answer

bends away from the medium that causes slower speed

Answer

bends away from the medium that causes lower frequency

Question 5

What is the reinforcement or cancellation that occurs when two or more

sound waves meet?

Accepted Answer

Interference

Answer

Resonance

Answer

Echo

Answer

Dissonance

Question 6

What term describes a situation in which a driving frequency on an object is the same as or

nearly the same as one of the object's natural frequencies?

Accepted Answer

Resonance

Answer

Dissonance

Answer

Oscillation

Answer

Vibration

Question 7

What is the substance through which a wave transfers its energy?

Accepted Answer

Medium

Answer

Force

Answer

Frequency

Answer

Amplitude

Question 8

Which of the following properties is directly proportional to wave speed?

Accepted Answer

Wavelength

Answer

Amplitude

Answer

Period

Answer

Intensity

Question 9

What technique uses the reflection of sound to calculate distance?

Accepted Answer

Echo ranging

Answer

Radar

Answer

Sonar

Answer

Acoustics

Question 10

What is a musical instrument's distinctive sound quality?

Accepted Answer

Timbre

Answer

Rhythm

Answer

Melody

Answer

Pitch

Question 11

Movies and television shows often include sounds from rocket engines being heard in the

vacuum of space. Why is this incorrect?

Accepted Answer

Sound cannot travel in the vacuum of space.

Answer

Rocket engines produce sound waves that can be heard in space.

Answer

Sound can travel faster in space than on Earth.

Answer

Space is filled with gases that carry sound.

Question 12

What is the relationship between sound intensity and distance?

Accepted Answer

Intensity is inversely proportional to distance.

Answer

Intensity is directly proportional to distance.

Answer

Intensity is directly proportional to the square of distance.

Answer

Intensity is inversely proportional to the square of distance.

Question 13

Why can an echo not be heard if the source of the sound is less than 17 m from the

reflecting surface?

Accepted Answer

The sounds are too close in time to be distinguished.

Answer

The sounds reflected will be too weak to hear.

Answer

The sound waves cancel each other.

Answer

The sound will be reflected away from the source.

Question 14

What is the most dominant sound of a musical note?

Accepted Answer

Fundamental frequency

Answer

Harmonics

Answer

Overtones

Answer

Octave

Question 15

What is a random sound with no intended pattern?

Accepted Answer

Noise

Answer

Melody

Answer

Harmony

Answer

Rhythm

Question 16

What is a series of organized sound waves with specific pitches that have

been deliberately arranged?

Accepted Answer

Music

Answer

Static

Answer

Silence

Answer

Noise

Question 17

What is the low point of a wave called?

Accepted Answer

Trough

Answer

Wavelength

Answer

Amplitude

Answer

Crest

Question 18

Which type of wave has particles of the transmitting medium oscillating

at right angles to the direction of wave travel?

Accepted Answer

Transverse wave

Answer

Longitudinal wave

Answer

Surface wave

Answer

Electromagnetic wave

Question 19

What is the bending of the path of a wave as a result of a change in wave

speed?

Accepted Answer

Refraction

Answer

Absorption

Answer

Reflection

Answer

Diffraction

Question 20

What is a sound heard distinctly after being reflected from some object?

Accepted Answer

Echo

Answer

Reverb

Answer

Noise

Answer

Soundwave

Question 21

high point of a wave train

Accepted Answer

crest

Answer

trough

Answer

wavefront

Answer

amplitude

Question 22

strength of a sound wave

Accepted Answer

Intensity

Answer

Frequency

Answer

Amplitude.

Answer

Absorption

Question 23

musical distance between two note

Accepted Answer

Intervals

Answer

Absorption

Answer

Intensity

Answer

Frequency

Question 24

number of waves that pass a point per unit time

Accepted Answer

Frequency

Answer

Phase Shift

Answer

Wavelength

Answer

Amplitude

Question 25

maximum distance particles are displaced in a

wave train

Accepted Answer

Amplitude

Answer

Phase Shift

Answer

Wavelength

Answer

Frequency

Question 26

The set of frequencies at which an object vibrates are its

________ frequencies.

Accepted Answer

natural

Answer

fundamental

Answer

harmonic

Answer

resonant

Question 27

The length of a wave is the ______?

Accepted Answer

Wavelength

Answer

Frequency

Answer

Normal

Answer

Noise

Question 28

A change in frequency caused by an object's motion is called the ?

Accepted Answer

Doppler effect

Answer

Sound wave distortion

Answer

Frequency shift

Answer

Acoustic anomaly

Question 29

The difference in pitch between a note and a second note that has twice

the frequency of the first note is a(n) ___?

Accepted Answer

octave

Answer

major third

Answer

fifth

Answer

perfect fifth

Question 30

Vibrations traveling through a medium as longitudinal pressure waves

are called?

Accepted Answer

Sound waves

Answer

Transverse waves

Answer

Electromagnetic waves

Answer

Surface waves

Question 31

The process of dissipating the energy of sound waves in matter is known

as ?

Accepted Answer

Absorption

Answer

Refraction

Answer

Reflection

Answer

Rresonance

Question 32

The portion of a wave in which the particles are spread out is a(n) ______

pulse?

Accepted Answer

rarefaction

Answer

crest

Answer

wavefront

Answer

compression

Question 33

The spreading out of a wave after it passes through a narrow opening is

called ?

Accepted Answer

diffraction

Answer

refraction

Answer

reflection

Answer

absorption

Question 34

The relationship between the angle of incidence and angle of reflection

is described by the?

Accepted Answer

Law of reflection

Answer

Snell's law

Answer

Principle of superposition

Answer

Law of refraction

Question 35

An object traveling faster than the speed of sound is said to be

Accepted Answer

supersonic

Answer

transonic

Answer

subsonic

Answer

hypersonic

Question 36

A periodic back-and-forth motion that transmits energy is a

Accepted Answer

wave

Answer

oscillation

Answer

rotation

Answer

vibration

Question 37

The study of sound is called

Accepted Answer

acoustics

Answer

sonics

Answer

phonetics

Answer

vibrations

Question 38

The speed of a wave is ________ proportional to frequency.

Accepted Answer

directly

Answer

inversely

Answer

indirectly

Answer

not related

Question 39

The effect of frequency on the way our ear perceives sound is?

Accepted Answer

pitch

Answer

volume

Answer

perception.

Answer

frequency

Question 40

A pedestrian hears the siren of an ambulance. The ambulance driver hears the siren as

1000 Hz. The pedestrian hears the siren as 1150 Hz. What can be inferred from this scenario?

Accepted Answer

The ambulance is moving toward the pedestrian.

Answer

The ambulance is not moving.

Answer

The ambulance is moving away from the pedestrian.

Answer

There is not enough information to infer any of these.

Question 41

In 7.5 s, 4200 waves pass a given point. What is the frequency of

the waves?

Accepted Answer

560 Hz

Answer

480 Hz

Answer

600 Hz

Answer

720 Hz

Question 42

What is the speed of a wave with a wavelength of 2.0 m and a frequency

of 6.0 Hz?

Accepted Answer

12.0 m/s

Answer

15.0 m/s

Answer

10.0 m/s

Answer

8.0 m/s

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