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# Sound Wave Frequency and Time Period

Created by
@SprightlyVision

### What is the SI unit of frequency?

• Meter
• Hertz (correct)
• Joule
• Second
• ### How is the time period of a sound wave defined?

• Time taken for two rarefactions to cross a point
• Time taken for a compression to cross a point
• Time taken for two compressions to cross a point
• Time taken for one complete oscillation (correct)
• ### What is the relationship between frequency and time period of sound waves?

• $v = 2T$
• $v = \frac{1}{T}$ (correct)
• $v = T^2$
• $v = T$
• ### Why do sounds of different pitch reach our ears even though they may travel at the same speed?

<p>Due to different frequencies of the sounds</p> Signup and view all the answers

### What aspect of a sound wave does pitch indicate?

<p>Frequency</p> Signup and view all the answers

### What is the relationship between frequency and time period of a sound wave?

<p>Frequency is the reciprocal of time period</p> Signup and view all the answers

### If a sound wave has a frequency of 1000 Hz, what is its time period?

<p>0.001 s</p> Signup and view all the answers

### What determines the pitch of a sound?

<p>Frequency of the sound wave</p> Signup and view all the answers

### What is the audible range of hearing for average human beings in terms of frequency?

<p>20 Hz - 20 MHz</p> Signup and view all the answers

### How does the speed of sound change with respect to the transmitting medium's temperature?

<p>Increases with increasing temperature</p> Signup and view all the answers

### If the time period of a sound wave is 0.02 seconds, what is its frequency in hertz?

<p>$50 \text{ Hz}$</p> Signup and view all the answers

### If a sound wave has a frequency of 25 Hz, how many complete oscillations will it undergo in 2 seconds?

<p>50</p> Signup and view all the answers

### What is the relationship between the wavelength and the frequency of a sound wave traveling in a medium with a constant speed?

<p>The wavelength is inversely proportional to the frequency.</p> Signup and view all the answers

### If a sound wave has a frequency of 500 Hz and a wavelength of 0.6 meters, what is the speed of the wave in the medium?

<p>$300 \text{ m/s}$</p> Signup and view all the answers

### If a sound wave has a time period of 0.005 seconds and a wavelength of 1.5 meters, what is the speed of the wave in the medium?

<p>$300 \text{ m/s}$</p> Signup and view all the answers

### If the frequency of a sound wave is doubled, what happens to its time period?

<p>The time period is halved</p> Signup and view all the answers

### A sound wave has a frequency of 300 Hz and a wavelength of 1.2 m. What is the speed of sound in the medium?

<p>360 m/s</p> Signup and view all the answers

### If the speed of sound in a medium is 340 m/s and the frequency of a sound wave is 170 Hz, what is the wavelength of the wave?

<p>1 m</p> Signup and view all the answers

### A person standing 500 m away from a sound source hears the sound 1.5 seconds after it is produced. What is the speed of sound in the medium?

<p>333 m/s</p> Signup and view all the answers

### If the frequency of a sound wave is increased by a factor of 3, and its wavelength is decreased by a factor of 3, what happens to its speed?

<p>The speed remains the same</p> Signup and view all the answers

### If a sound wave has a period of 0.001 seconds, what is its frequency in hertz?

<p>1000 Hz</p> Signup and view all the answers

### If the frequency of a sound wave is doubled, how does its period change?

<p>The period is halved</p> Signup and view all the answers

### What is the relationship between the frequency (f) and period (T) of a sound wave?

<p>f = 1/T</p> Signup and view all the answers

### If a sound wave has a frequency of 500 Hz, what is its period in milliseconds?

<p>2 ms</p> Signup and view all the answers

### If a sound wave has a period of 0.25 seconds, what is its frequency in kilohertz?

<p>4 kHz</p> Signup and view all the answers

### If the frequency of a sound wave is 500 Hz, what is the time period of the wave?

<p>0.002 s</p> Signup and view all the answers

### If the time period of a sound wave is 0.01 s, what is its frequency?

<p>100 Hz</p> Signup and view all the answers

### What is the relationship between the frequency and time period of a wave?

<p>They are inversely proportional</p> Signup and view all the answers

### If a sound wave has a frequency of 200 Hz and the time period is increased by a factor of 2, what is the new frequency?

<p>100 Hz</p> Signup and view all the answers

### What is the time interval between successive compressions from a sound source vibrating at 1000 Hz?

<p>0.001 s</p> Signup and view all the answers

### What is the time period of a sound wave with a frequency of 500 Hz?

<p>0.5 seconds</p> Signup and view all the answers

### If the time period of a sound wave is 0.02 seconds, what is its frequency?

<p>200 Hz</p> Signup and view all the answers

### In sound waves, if the frequency is halved, what happens to the time period?

<p>It becomes double</p> Signup and view all the answers

### What is the relationship between the frequency and time period of a sound wave?

<p>They are inversely related</p> Signup and view all the answers

### If a sound wave has a frequency of 100 Hz, what is its time period?

<p>1 second</p> Signup and view all the answers

### How does decreasing the frequency of a sound wave affect its time period?

<p>It increases the time period</p> Signup and view all the answers

### If a sound wave takes 0.05 seconds to complete one full cycle, what is its frequency?

<p>20 Hz</p> Signup and view all the answers

### What happens to the time period of a sound wave if its frequency is tripled?

<p>It becomes three times smaller</p> Signup and view all the answers

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