Download - Wave Properties and Sound Review
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WAVE PROPERTIES AND SOUND REVIEW
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TRUE OR FALSE1. A wave transports energy but not
matter.
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TRUE OR FALSE2. As the frequency of sound waves
increases, the wavelength of the sound waves decreases.
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TRUE OR FALSE3. Sound waves cannot travel through
solids
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TRUE OR FALSE4. According to the Doppler effect, light
from a star moving away from Earth will have a higher frequency than light from a star moving toward Earth.
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TRUE OR FALSE5. When two waves are in the same
place at the same time, they combine to produce a single wave.
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TRUE OR FALSE6. Anything that moves up and down or
back and forth in a rhythmic way is vibrating.
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7. Sound waves A.require a medium. C.are not mechanical waves. B.are unrelated to vibrations. D.can travel in a vacuum.
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8. The medium seismic waves travel through is
A.a vacuum. C.air. B.rocks and other materials inside
Earth. D.energy.
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9. Sound waves are an example of A.transverse waves. C.circular waves. B.longitudinal waves. D.polarized waves.
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10. Light waves are an example of A.transverse waves. C.rotating waves. B.longitudinal waves. D.circular waves.
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11. A person is standing still and listening to a siren sounding an alarm. The person begins running toward the sound. The frequency of the sound the person hears will
A.remain the same. C.decrease. B.increase. D.change by 20 Hz.
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12. The frequency of a sound wave determines
A.the pitch of the sound. C.how fast the sound travels. B.how loud the sound is. D.the magnitude of the compression.
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13. How loud a sound is depends on A.the wavelength of the sound. C.the amplitude of the waves. B.the pitch of the sound. D.the medium.
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14. The intensity of a sound describes A.its speed. B.its loudness at a particular distance. C.the distance and medium through
which it travels D.the medium through which it travels.
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15. The pitch of a sound is most closely related to the
A.frequency of vibrations. B.distance from the sound source. C.medium through which the sound
travels. D.intensity of the sound.
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16. A change in pitch or wave frequency due to movement is known as _____________.
A.ultrasonic waves C.Doppler Effect B.intensity D.vibrations
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17. A sound wave consists of _______________.
A.compressions and rarefactions C.both a and b B.crests and troughs D.neither a nor b
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18. Mechanical waves are different than electromagnetic waves due to the fact that
A.electromagnetic waves do not need a medium to transport energy.
B.mechanical waves do not need a medium to transport energy.
C.electromagnetic waves are influenced by light.
D.mechanical waves only transport energy in outerspace.
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19. Which demonstration was used to illustrate the relationship between wavelength and pitch?
A.oven rack and string C.can phone B.talking cups D.carpet tubes and bunsen burner
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20. Which demonstration was used to illustrate the effect of vibrations on a medium?
A.oven racks and string C.can phone B.tuning forks D.all of the above
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21. The vacuum pump and alarm clock were used to illustrate the effect of _____ on sound waves.
A.pitch C.frequency B.medium D.vibrations
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NAME THAT WAVE21. A wave that causes the particles of the medium to
vibrate perpendicularly to the direction the wave travels.
22. A wave that requires a medium through which to travel.
23. A wave that causes the particles of the medium to vibrate parallel to the direction the wave travels.
24. A wave caused by a disturbance in electric and magnetic fields that does not require a medium.
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VOCABULARY TERMS25. Two or more waves in the same place at the same time. 26. A disturbance that transmits energy through matter or
space.
27. The time required for a full wavelength to pass a certain point.
28. The number of vibrations that occur in a certain time frame.
29. The matter through which a wave travels.
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Can you label a transverse wave? Can you label a longitudinal wave? Can you find the Wavelength,
frequency, period and speed of a wave?
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Cicadas produce a buzzing sound that has a wavelength of 2.69m. If the speed of sound in air is 346m/s, what is the frequency of the sound produced?
Remember… f = v λ
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. The frequency of a wave travelling a speed of 500 m/s is 25 Hz. Its time period will be ____.
a. 20 s c. 25 sb. .05 s d. .04 s
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The frequency which is not audible to the human ear isa. 50 Hz c. 5000Hzb. 500 Hz d. 50000Hz
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The speed of sound in medium depends upona. Amplitude c. wavelengthb. Frequency d. properties of the medium
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The vibrations or the pressure variations inside the inner ear are converted into electrical signals by thea. cochlea c. pinnab. tympanic membrane d. anvil
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Sounds having a frequency of 20 Hertz or less are a. infrasonic c. supersonicb. sonic d. ultrasonic
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The characteristic of sound which distinguishes a loud sound from a muffled sound of the same frequency is ____.a. pitch c. decibel levelb. quality d. none of these
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. How do rock particles move during the passage of a P wave through the rock?a. back and forth parallel to the direction of the wave travelb. back and forth perpendicular to the direction of the wave travelc. in a rolling circular motiond. the particles do not move
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It is possible to break a wine glass by singing very loudly at the right note.This phenomenon when two objects vibrate at the same frequency is called
A. diffraction. C. refraction.B. interference. D. resonance
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You hear a plane 4 seconds after you see it. Find the distance to the plane. (speed of sound in air = 340 m/s)a. 85 m c. 136mb. .01 km d. 1360 m
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If a sound wave’s frequency is 100 Hz. What is its period?a. .01 sec b. .1 secc. 100 sec c. 1 sec
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A railroad crew is repairing a rail. You hear the hammer 0.5 seconds after it is swung. How far away is the crew? (Speed of sound in air= 340 m/s)a. 170 m c. 680 mb. 170 km d. 680 km
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