Name: Dillon D Period: 4th Height vs. Distance +20 Mechanical Waves 1. This wave's motion is...

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Name: Dillon D Period: 4th Height vs. Distance +20 Mechanical Waves 1. This wave's motion is graphed as a function of time and distance. Height (cm) +20 +10 0 -10 Height vs. Time mmm Height (cm) 46 0 1 2 3 Time (s) a. What is the wave frequency? b. What is the wavelength? c. What is the amplitude? d. Calculate the speed of the wave. 4 5 +10 0 -10 www 0 5 10 15 20 25 Distance (cm) 2. A wave has wavelength of 15 m and a speed of 300 m/s. What is the frequency of the wave? 3. While watching ocean waves at the dock of a bay, Alice notices that 10 waves pass beneath her in 30 seconds. She also notices that the distance between successive peaks is about 4 meters. Calculate a. Frequency b. Period c. Wavelength d. speed. 4. Identify which wave is high frequency and which wave is low frequency. What is the relationship of wavelength and frequency? Use the pictures to justify your answer. www B 5. A longitudinal wave with a frequency of 3.0 Hz takes 1.7 s to travel the length of a 2.5 m Slinky. Determine the wavelength of the wave. 6. While hiking in the mountains, you shout and hear your voice echo off a nearby rock wall. If you hear the echo four seconds after shouting, how far are you from the wall? (Speed of sound = 340 m/s) 7. A sound wave has a wavelength of 5.5 meters as it travels through air at 343 m/s. What is the new wavelength of this sound in a medium where its speed is 1324 meters per second? 8. Three waves to the right have the same frequency and travel in different media. Rank their speed from greatest to least. Explain your reasoning. A B 8 WW AN Name: Dillon D Period: 4th Height vs. Distance +20 Mechanical Waves 1. This wave's motion is graphed as a function of time and distance. Height (cm) +20 +10 0 -10 Height vs. Time mmm Height (cm) 46 0 1 2 3 Time (s) a. What is the wave frequency? b. What is the wavelength? c. What is the amplitude? d. Calculate the speed of the wave. 4 5 +10 0 -10 www 0 5 10 15 20 25 Distance (cm) 2. A wave has wavelength of 15 m and a speed of 300 m/s. What is the frequency of the wave? 3. While watching ocean waves at the dock of a bay, Alice notices that 10 waves pass beneath her in 30 seconds. She also notices that the distance between successive peaks is about 4 meters. Calculate a. Frequency b. Period c. Wavelength d. speed. 4. Identify which wave is high frequency and which wave is low frequency. What is the relationship of wavelength and frequency? Use the pictures to justify your answer. www B 5. A longitudinal wave with a frequency of 3.0 Hz takes 1.7 s to travel the length of a 2.5 m Slinky. Determine the wavelength of the wave. 6. While hiking in the mountains, you shout and hear your voice echo off a nearby rock wall. If you hear the echo four seconds after shouting, how far are you from the wall? (Speed of sound = 340 m/s) 7. A sound wave has a wavelength of 5.5 meters as it travels through air at 343 m/s. What is the new wavelength of this sound in a medium where its speed is 1324 meters per second? 8. Three waves to the right have the same frequency and travel in different media. Rank their speed from greatest to least. Explain your reasoning. A B 8 WW AN