Seven secs after a excellent flash the lightning, thunder shakes the house. Around how much was the lightning strike indigenous the house?A) much closer 보다 one kilometerB) about one kilometer awayC) around two kilometers awayD) much farther away than two kilometersE) it is impossible to say.

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What characteristics of a sound wave are related to the "pitch" of a musical note? (There could be more than one exactly choice.)A) amplitudeB) wavelengthC) frequencyD) period
Sound A has a high pitch and also sound B has a short pitch. I beg your pardon of the complying with statements about these 2 sounds space correct? (There could be much more than one correct choice.)A) The wavelength of A is longer than the wavelength of B.B) The period of A is shorter than the duration of B.C) The frequency of A is greater than the frequency of B.D) Sound B travels quicker than sound B through air.E) The amplitude of A is bigger than the amplitude of B.
You dual your distance from a sound resource that is radiating same in every directions. What happens to the intensity of the sound? it reduces toA) one-half its initial value.B) one-fourth its initial value.C) one-sixteenth its initial value.D) none of the above
Suppose the a sound resource is emitting tide uniformly in all directions. If you move to a point twice as far away native the source, the frequency of the sound will certainly beA) unchanged.B) half as great.C) one-fourth as great.D) twice as great.
An organ pipe of size L that is open at one finish resonates in its 3rd harmonic v a wavelength that 2L/3. Is the other end of the pipe closed or open?A) closedB) openC) us cannot tell native the details provided.
In a resonating pipe the is open up at both ends, thereA) room displacement nodes at every end.B) space displacement antinodes at every end.C) is a displacement node in ~ one end and a displacement antinode in ~ the various other end.D) nobody of the over choices space correct.
In a resonating pipe that is open up at one end and closed in ~ the various other end, thereA) are displacement nodes at every end.B) are displacement antinodes at each end.C) is a displacement node at the open end and also a displacement antinode at the closeup of the door end.D) is a displacement node at the close up door end and a displacement antinode in ~ the open end.
The lowest tone to resonate in pipe of size L that is open at both ends is 200 Hz. Which one of the complying with frequencies will not resonate in the exact same pipe?A) 200 HzB) 400 HzC) 600 HzD) 800 HzE) 900 Hz
The lowest ton to resonate in a pipeline of size L the is closed at one end but open at the other finish is 200 Hz. Which one of the adhering to frequencies will certainly not resonate in that pipe?A) 200 HzB) 400 HzC) 600 HzD) 1000 HzE) 1400 Hz
Consider the standing tide on a etc string and the sound wave created by the string together a result of this vibration. What execute these 2 waves have actually in common? (There may be more than one correct choice.)A) They have actually the very same wavelength.B) They have the very same speed.C) They have actually the exact same frequency.D) They have actually the same amplitude.E) They have the same period.
Consider a pipeline of size L the is open up at both ends. What space the wavelengths of the three lowest-pitch tones developed by this pipe?A) 4L, 2L, LB) 2L, L, L/2C) 2L, L, 2L/3D) 4L, 4L/3, 4L/5
An pipe of size L that is open at both ends is resonating in ~ its an essential frequency. I beg your pardon statement about the sound is correct?A) The wavelength is 2L and there is a displacement node at the pipe"s midpoint.B) The wavelength is 2L and there is a displacement antinode in ~ the pipe"s midpoint.C) The wavelength is L and there is a displacement node at the pipe"s midpoint.D) The wavelength is L and also there is a displacement antinode at the pipe"s midpoint.
In a resonating pipe that is open up at one end and closed in ~ the other, thereA) space displacement nodes at each end.B) are displacement antinodes at every end.C) is a displacement node at the open up end and a displacement antinode at the closeup of the door end.D) is a displacement node at the closed end and a displacement antinode at the open up end.
Consider a pipe of length L the is open at one end and also closed in ~ the other end. What room the wavelengths of the 3 lowest-pitch tones created by this pipe?A) 4L, 2L, LB) 2L, L, L/2C) 2L, L, 2 L/3D) 4L, 4L/3, 4L/5
) A pipe of length L that is closed at one end and also open at the other end is resonating in ~ its an essential frequency. Which statement around the sound is correct?A) The wavelength is 4L and also there is a displacement node in ~ the pipe"s open up end.B) The wavelength is 4L and there is a displacement antinode at the pipe"s open up end.C) The wavelength is L and there is a displacement node in ~ the pipe"s open end.D) The wavelength is L and there is a displacement antinode in ~ the pipe"s open up end.
Two tuning forks have frequencies of 440 and also 522 Hz. What is the to win frequency if both room sounding simultaneously?A) 962 HzB) 481 HzC) 82 HzD) 55 HzE) 41 Hz
) 2 strings both vibrate at precisely 819 Hz. The anxiety in one of them is then raised slightly. Together a result, 6 beats per 2nd are heard once both strings vibrate. What is the brand-new frequency of the string that was tightened?A) 825 HzB) 813 HzC) 822 HzD) 816 Hz
Two pure tones space sounded together and also a particular beat frequency is heard. What wake up to the beat frequency if the frequency of one of the tones is increased?A) the increases.B) it decreases.C) that does not change.D) It might either boost or decrease.
A music tuner supplies a 554-Hz C# tuning fork to track the frequency the a music instrument. If the tuner hears a to win frequency the 2 Hz, what is the frequency that the instrument?A) It have to be 556 Hz.B) It have to be 552 Hz.C) It can be either 556 Hz or 552 Hz.D) It can be either 553 Hz or 555 Hz.E) the is neither 556 Hz or 552 Hz.
As you room moving really quickly toward a speak emitting a pure tone, which characteristics of the sound gain larger? (There might be more than one correct choice.)A) frequencyB) amplitudeC) wavelengthD) periodE) loudness
In numerous cartoon shows, a character runs turn off a cliff, realizes his predicament, and also lets the end a scream. He continues to scream together he falls. If the physical case is depicted correctly, native the vantage suggest of one observer at the top of the cliff leaning end the edge, the pitch of the scream together he falls should beA) greater than the original pitch and also constant.B) greater than the initial pitch and increasing together he falls.C) lower than the initial pitch and also constant.D) reduced than the initial pitch and also decreasing together he falls.E) it is difficult to predict.
In countless cartoon shows, a character runs off a cliff, realizes his predicament, and lets the end a scream. He proceeds to scream together he falls. If the physical case is depicted correctly, native the vantage point of one observer in ~ the foot that the cliff, the pitch of the scream together he falls should beA) higher than the initial pitch and constant.B) higher than the initial pitch and increasing as he falls.C) lower than the original pitch and also constant.D) reduced than the original pitch and also decreasing as he falls.E) that is impossible to predict.

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A human being stands in between two speakers pushed by the same source. Each speaker produces a tone with a frequency the 200 Hz ~ above a day as soon as the speed of sound is 330 m/s. The person is 1.65 m from one speaker and 4.95 m from the other. What kind of interference does the person perceive?A) constructiveB) destructiveC) both constructive and also destructiveD) neither constructive nor destructive
A sonic eight occurs only as an plane just reaches the speed of sound in air, however not ~ it boosts its rate further.A) TrueB) False
As a supersonic aircraft increases the speed an ext and more, the half-angle that the conical shock waveA) increases.B) decreases.C) is not affected.
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