Sound (Chapter 2 & 3)

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  • 1/18 Questions

    WWhat is the unit of measurement for Distance?

    • Kg/cm3
    • Pascales
    • Watts
    • Joules
    • Cm, feet, miles
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Sound (Chapter 2 & 3) - Quiz
About This Quiz

Explore the fundamentals of sound in this quiz, covering its nature as mechanical energy, travel properties, and characteristics. Assess your understanding of acoustic variables and pressure measurement. Ideal for students enhancing their physics knowledge.

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  • 2. 

    Sound travel through a vaccum

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Sound cannot travel through a vacuum because it requires a medium, such as air, water, or solids, to propagate. In a vacuum, there are no particles to vibrate and transmit the sound waves. Therefore, sound cannot be heard in space or any other vacuum environment.

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  • 3. 

    Described as a mechanical energy.

    Correct Answer
    sound
    Explanation
    Sound is described as a mechanical energy because it is produced by the vibration of particles in a medium, such as air or water. These vibrations create waves of pressure that travel through the medium, carrying the energy of the sound. This mechanical energy can then be detected by our ears, allowing us to perceive sound.

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  • 4. 

    What is the unit for period

    • Miles

    • Cm3

    • Hertz

    • Seconds

    • Watts

    Correct Answer
    A. Seconds
    Explanation
    The unit for period refers to the time it takes for one complete cycle or oscillation to occur. It is commonly measured in seconds. Miles, cm3, hertz, and watts are not appropriate units for measuring period as they are used for measuring distance, volume, frequency, and power respectively. Therefore, the correct unit for period is seconds.

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  • 5. 

    What is the typical value for period?

    • 2MH to 10MHz

    • 0.1- 0.5 microseconds

    • 1MPa-3MPa

    • .004-0.090 watts

    Correct Answer
    A. 0.1- 0.5 microseconds
    Explanation
    The typical value for period is 0.1-0.5 microseconds. Period refers to the time it takes for one complete cycle of a waveform to occur. In this case, the given options represent different units or values that are not related to period. Therefore, the correct answer is the only option that provides a range of values in microseconds, which is the appropriate unit for measuring period.

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  • 6. 
    Describe B - ProProfs

    Describe B

    • Destructive interference/out-of-phase wave

    • Constructive interference/in-phase wave

    Correct Answer
    A. Destructive interference/out-of-phase wave
    Explanation
    Destructive interference occurs when two waves meet and their amplitudes cancel each other out, resulting in a wave with reduced or no amplitude. This happens when the waves are out of phase, meaning that the peaks of one wave align with the troughs of the other wave. In this case, the description of "destructive interference/out-of-phase wave" suggests that B is a wave that undergoes destructive interference, where the peaks of the wave align with the troughs of another wave, resulting in a reduction or cancellation of its amplitude.

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  • 7. 

    In a longitudinal wave particles move in the same directions that the wave propagates.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    In a longitudinal wave, the particles of the medium move in the same direction as the wave propagates. This means that as the wave travels through the medium, the particles oscillate back and forth parallel to the direction of the wave. This can be observed in sound waves, where the air particles vibrate back and forth in the same direction as the sound wave travels. Therefore, the statement is true.

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  • 8. 

    What do waves transferr from one location to another?

    • Matter

    • Molecules

    • Energy

    • Water

    Correct Answer
    A. Energy
    Explanation
    Waves transfer energy from one location to another. They do not transfer matter or molecules, but rather the energy associated with the wave. This energy can be in the form of mechanical waves, such as sound or seismic waves, or electromagnetic waves, such as light or radio waves. Regardless of the type of wave, the underlying principle is that energy is transferred from one point to another without the actual movement of particles or matter.

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  • 9. 

    How does sound travel?

    Correct Answer
    In a straight line
    Explanation
    Sound travels in a straight line because it is a wave that propagates through a medium, such as air or water. When a sound is produced, it creates a disturbance in the particles of the medium, causing them to vibrate. These vibrations then travel in all directions from the source of the sound, forming a spherical wavefront. However, over long distances, the wavefront appears to be straight due to the large scale of the Earth's surface compared to the wavelength of the sound. Therefore, sound is perceived to travel in a straight line.

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  • 10. 
    Describe letter A - ProProfs

    Describe letter A

    • Destructive interference/out-of-phase wave

    • Constructive interference/in-phase wave

    Correct Answer
    A. Constructive interference/in-phase wave
    Explanation
    Constructive interference refers to the phenomenon where two waves combine to create a larger amplitude. In the case of an in-phase wave, the peaks and troughs of the two waves align perfectly, resulting in reinforcement and an increase in amplitude. This leads to constructive interference. Destructive interference, on the other hand, occurs when two waves combine to cancel each other out, resulting in a decrease in amplitude. However, since the question only asks for a description of letter A and does not provide any context, it is difficult to determine how this explanation specifically relates to letter A.

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  • 11. 

    What is the unit of measurement for density?

    • Kg/cm3

    • Pascals

    • Cm, feet, miles

    • Joules

    • Watts

    Correct Answer
    A. Kg/cm3
    Explanation
    The unit of measurement for density is kg/cm3. Density is defined as the mass of an object divided by its volume. The unit kg/cm3 represents the mass in kilograms and the volume in cubic centimeters. It is commonly used to measure the density of solids, liquids, and gases.

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  • 12. 

    The time it takes a wave to vibrate a single cycle, or the time from the start of a cycles of the start of the next cycle.

    • Frequency

    • Speed

    • Period

    • Intensity

    • Wavelength

    Correct Answer
    A. Period
    Explanation
    The time it takes a wave to vibrate a single cycle, or the time from the start of a cycles of the start of the next cycle, is known as the period of the wave. It represents the duration of one complete oscillation or wave cycle. The period is inversely proportional to the frequency of the wave, meaning that as the period increases, the frequency decreases, and vice versa. Therefore, the correct answer is Period.

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  • 13. 

    What is the unit of measurement for pressure?

    • Kg/cm3

    • Pascals

    • Cm, feet, miles

    • Watts

    • Joules

    Correct Answer
    A. Pascals
    Explanation
    The unit of measurement for pressure is pascals. Pascals (Pa) are the SI unit for pressure and are defined as one newton of force per square meter. This unit is commonly used in scientific and engineering contexts to measure pressure in various systems, such as gases and fluids.

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  • 14. 

    What are the three accoustic variables?

    Correct Answer
    Pressure
    Density
    Distance
    Explanation
    The three acoustic variables are pressure, density, and distance. These variables are fundamental in describing and understanding sound waves. Pressure refers to the force exerted by the sound wave on a surface, density is the amount of mass per unit volume of the medium through which the sound wave travels, and distance is the physical separation between the source of the sound and the point of observation. Together, these variables help quantify and analyze the characteristics and behavior of sound waves.

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  • 15. 

    In this wave particles move in a direction that is perpendicular to the direction that the wave moves

    • Circular

    • Longitudinal

    • Perpendicular

    • Parallel

    • Transverse

    Correct Answer
    A. Transverse
    Explanation
    Transverse waves are characterized by particles moving in a direction that is perpendicular to the direction in which the wave itself moves. In other words, as the wave propagates horizontally or vertically, the particles oscillate up and down or side to side. This can be visualized by imagining a wave on a string, where the string moves up and down while the wave moves horizontally. Therefore, the given answer "transverse" accurately describes the movement of particles in this type of wave.

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  • 16. 

    When more than one sound beam arrives in an identical location at the same time that is called?

    • Sound

    • In-phase waves

    • Interference

    • Out-of-phase waves

    Correct Answer
    A. Interference
    Explanation
    When more than one sound beam arrives in an identical location at the same time, the waves from each beam interact with each other. This interaction, known as interference, can result in either constructive interference or destructive interference. Constructive interference occurs when the waves are in-phase and reinforce each other, leading to a louder sound. Destructive interference occurs when the waves are out-of-phase and cancel each other out, resulting in a quieter sound. Therefore, interference is the correct answer as it describes the phenomenon of multiple sound beams arriving at the same location and interacting with each other.

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  • 17. 

    What are the three characterstics of sound?

    Correct Answer
    Cannot travel through a vacuum
    Travels in a straight line
    Longditudinal waves
    Explanation
    Sound cannot travel through a vacuum because it requires a medium, such as air, water, or solids, to propagate. It travels in a straight line because it follows the path of least resistance. Sound waves are longitudinal waves, which means that they move in the same direction as the vibration of particles in the medium.

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  • 18. 

    Test

    • Test

    • Test

    • Test

    Correct Answer
    A. Test

Quiz Review Timeline (Updated): Mar 21, 2023 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Oct 04, 2009
    Quiz Created by
    Brett81
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