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Kids learn about ocean waves and currents including what causes them, how they impact the global climate, winds, and fun facts.
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Kids take a quiz on Earth Science: Ocean Waves and Currents....
- Quiz
The approximate speed of a wave train can be calculated from the average period of the waves in the train, using a simple formula: speed (in knots, which are nautical miles per hour) = 1.5 x period (in seconds).
Through the NODC Web site (http://www.nodc.noaa.gov/General/getdata.html), you can access a variety of data sets containing information on currents and other oceanographic measurements, such as beach temperatures, coastal buoy data, global temperature and salinity data, and photograph collections.
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.
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.
Small variations in amplitude (“short” pressure waves) produce weak or quiet sounds, while large variations (“tall” pressure waves) produce strong or loud sounds. The two examples below show sound waves that vary in frequency and amplitude.
23 Φεβ 2023 · This resource covers all the key information about Ocean Currents, Waves, Tides and everything you’ll need to teach your students about this topic with interactive worksheets. This Unit is Informative, Interesting and Visually stimulating with great graphics and related images which help students to understand the concept behind each description.
