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Worksheet. 14.2b. Periodic Motion and Waves. Speed of sound in air = 340 m/s. Speed of light = 2.9979 × 108 m/s. 1. The crests of an ocean wave are 20 m apart and you measure one wave every 10 seconds (or the frequency = 1/10 Hz). Find the speed of the wave. 2. Tides can be considered to be a big wave.
Surface ocean waves are produced by winds. The height of these waves depends upon wind speed, the length of time the wind blows (duration) and the distance over
Period: the time it takes for two successive crests to pass a given point. Frequency: the number of waves passing a point in a given amount of time, usually expressed as waves per second. This is the inverse of the period. Speed: how fast the wave travels, or the distance traveled per unit of time.
Calculate the wave velocity of the ocean wave in the previous figure if the distance between wave crests is 10.0 m and the time for a seagull to bob up and down is 5.00 s.
Sonar is a device that uses reflected sound waves to measure underwater depths. If a sonar signal has a frequency of 288 Hz and the speed of sound in water is 1.45×103 m/s, what is the wavelength of the sonar signal? 7. A buoy bobs up and down in the ocean.
Find the (a) amplitude, (b) wave number, (c) angular frequency, (d) wave speed, (e) initial phase shift, (f) wavelength, and (g) period of the wave. A surface ocean wave has an amplitude of 0.60 m and the distance from trough to trough is 8.00 m.
Lab 6.3 – Wave Dynamics. Fundamental concept: Calculate wavelength and wave speed from wave period. Estimated time to complete: 30 minutes. Data skills preparation: Lab 2.1 – Time series. Materials needed: calculator.
