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Chapter 14
Waves
Question | Answer |
---|---|
What are the main two parts of waves? | Crests and troughs. |
What is the highest part of the wave? | Crest. |
What is the lowest part of the wave? | Trough. |
What is the distance between two adjacent wave crests or troughs? | Wavelength. |
What is the vertical distance between the crest and the trough of a wave? | Wave Height. |
What type of movements to ocean waves make? | Circular. |
What is the time between the passage of two wave crests? | Wave Period. |
wavelength (m) = wave speed (m/s) wave period (s) | Formula for calculating wave speed. |
What are some examples of things that cause waves? | Wind, earthquakes, landslides, and impacts of cosmic bodies. |
What are waves that move in water deeper than one half their wavelength? | Deep Water Waves. |
When waves reach water shallower than one half their wavelength and then begin to interact with ocean floor, they are called? | Shallow Water Waves. |
What are the stages of the life span of a wave? | Deep Water Waves Shallow Water Waves. Breakers in the break zone. Surf on the shore. |
Gravity eventually pulls high wave crest down, which causes waves to tumble downward forming ___________________. | Breakers |
The area where wave first break is called the _______________________. | Break Zone. |
What is the area between the breaker zone and the shore? | Surf |
What is a subsurface current that is near shore and pulls objects back out to sea? | Undertow. |
What is the water current that travels near and parallel to shoreline? | Longshore Current. |
What are white foaming waves with very steep crests that break in the open ocean before the waves get close to shore? | White Caps. |
What are rolling waves that move steadily across the ocean. They have longer wavelengths than white caps and can travel further? | Swells. |
What are waves that form when a large volume of ocean water is suddenly moved up and down such as by earthquake? | Tsunamis. |
What is a local rise in sea level near the shore that is caused by strong winds from a storm or hurricane? | Storm Surge. |