6. A duck feels ocean waves pass under him 8 times every second. He notices the crests are 6.2 meters apart. What is the speed of this wave? 8Hz x 6.2m = 49……… 7. A sound wave has a wavelength of 1500 meters is moving at a speed of 22 m/s. How many times per second will your ears feel the beat? 1500/22= Use the following situation to answer questions 8-10. An earthquake is made of two types of waves. The first, a P-wave, is a longitudinal wave, which travels at these speeds, depending on what medium they have to travel through: 330 m/s = 740 mph (air) 1450 m/s = 3,200 mph (water) 5000 m/s = 11,000 mph (granite) 8. Find the wavelength of the P-waves through air, water, and granite if they all have a frequency of 55 Hz. 330/55= 6m/s 1450/55= 5000/55= 9. An S-wave is transverse and travels at about 60% of the speed. It does more damage than the P-wave because it moves up and down! Find the speed of S-waves through all of the media. 330 x .60 = 1450 x .60= 5000 x .6=
6. A duck feels ocean waves pass under him 8 times every second. He notices the crests are 6.2 meters apart. What is the speed of this wave? 8Hz x 6.2m = 49……… 7. A sound wave has a wavelength of 1500 meters is moving at a speed of 22 m/s. How many times per second will your ears feel the beat? 1500/22= Use the following situation to answer questions 8-10. An earthquake is made of two types of waves. The first, a P-wave, is a longitudinal wave, which travels at these speeds, depending on what medium they have to travel through: 330 m/s = 740 mph (air) 1450 m/s = 3,200 mph (water) 5000 m/s = 11,000 mph (granite) 8. Find the wavelength of the P-waves through air, water, and granite if they all have a frequency of 55 Hz. 330/55= 6m/s 1450/55= 5000/55= 9. An S-wave is transverse and travels at about 60% of the speed. It does more damage than the P-wave because it moves up and down! Find the speed of S-waves through all of the media. 330 x .60 = 1450 x .60= 5000 x .6=
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