At what water depth is an ocean wave affected by the ocean floor?
At what water depth is an ocean wave affected by the ocean floor? At the depth equal to one-half the wave's wavelength.
Which is closest to the continental margin quizlet?
1) Continental margins are boundaries between continental crust and oceanic crust. 2) Nearest the continent is the continental shelf, which is the submerged part of the continent, is almost flat.
Which correctly describes a passive continental margin?
A passive continental margin occurs where the transition from land to sea is not associated with a plate boundary. The east coast of the United States is a good example; the plate boundary is located along the mid Atlantic ridge, far from the coast. Passive margins are less geologically active.
What type of current causes sand to move along the beach and makes it virtually impossible to swim to shore at a right angle?
Rip currents are strong, narrow, seaward flows of water that extend from close to the shoreline to outside of the surf zone. They are found on almost any beach with breaking waves and act as “rivers of the sea,” moving sand, marine organisms, and other material offshore (see pictures below).
What type of wave forms at the boundary between air and water in the open ocean?
orbital progressive waves Waves at the surface of the ocean and lakes are orbital progressive waves. This type of wave forms at the boundary of two liquids of different density, in this case air and water.
What happens when a wave moves from deep to shallow water?
Thus, if water waves are passing from deep water into shallow water, they will slow down. So as water waves are transmitted from deep water into shallow water, the speed decreases, the wavelength decreases, and the direction changes.
What is the continental margin quizlet?
Continental margin. the zone of the ocean floor that separates the thin oceanic crust from thick continental crust. Together, the continental shelf, continental slope, and continental rise are called the continental margin.
What are the features of continental margin?
The continental margin consists of three different features: the continental rise, the continental slope, and the continental shelf. The continental shelf is the relatively shallow water area found in proximity to continents. Continental margins constitute about 28% of the oceanic area.
What makes up the continental margin?
The continental rise, continental slope, and continental shelf are the three basic components that actually make the entire structure of continental margins. The continental slopes and the continental shelves are structural constituents of continents even though they are below the surface of sea.
Where is the continental margin?
A continental margin is the outer edge of continental crust abutting oceanic crust under coastal waters. It is one of the three major zones of the ocean floor, the other two being deep-ocean basins and mid-ocean ridges.
What is the movement of sand along the beach called?
beach drift Consequently, beach sand will have a net movement up or down the beach, depending on the direction of incoming waves. This net movement of the beach sand is known as beach drift.
What causes longshore transport?
Longshore currents are generated when a "train" of waves reach the coastline and release bursts of energy. The speed at which waves approach the shore depends on sea floor and shoreline features and the depth of the water.
What are transverse and longitudinal waves?
Transverse waves cause the medium to move perpendicular to the direction of the wave. Longitudinal waves cause the medium to move parallel to the direction of the wave.
What are transverse and longitudinal waves give examples?
Examples of transverse waves include vibrations on a string and ripples on the surface of water. We can make a horizontal transverse wave by moving the slinky vertically up and down. In a longitudinal wave the particles are displaced parallel to the direction the wave travels.
How do water molecules move as part of deep ocean waves?
In the open ocean, the friction moving the waves generates energy within the water. This energy is then passed between water molecules in ripples called waves of transition. When the water molecules receive the energy, they move forward slightly and form a circular pattern.
Which of the following describes the effect of water waves passing into a shallow water?
Thus, if water waves are passing from deep water into shallow water, they will slow down. So as water waves are transmitted from deep water into shallow water, the speed decreases, the wavelength decreases, and the direction changes.
How are continental margins formed?
Convergent continental margins develop when two crustal plates collide. When an ocean plate collides with a less dense continental plate a marginal basin forms between the island arc and the continent.
What are the features of a continental margin?
The continental margin consists of three different features: the continental rise, the continental slope, and the continental shelf. The continental shelf is the relatively shallow water area found in proximity to continents. Continental margins constitute about 28% of the oceanic area.
What does the deep-ocean basin consist of?
Deep-ocean basins cover the greatest portion of the Earth's surface. Geographic features associated with deep-ocean basins include trenches, abyssal plains, ocean ridges and rises, and submarine mountainous regions.
What are the 3 components of the continental margin?
The continental rise, continental slope, and continental shelf are the three basic components that actually make the entire structure of continental margins. The continental slopes and the continental shelves are structural constituents of continents even though they are below the surface of sea.
What does the deep ocean basin consist of?
Deep-ocean basins cover the greatest portion of the Earth's surface. Geographic features associated with deep-ocean basins include trenches, abyssal plains, ocean ridges and rises, and submarine mountainous regions.
What are the 3 main parts of the continental margin?
The continental rise, continental slope, and continental shelf are the three basic components that actually make the entire structure of continental margins. The continental slopes and the continental shelves are structural constituents of continents even though they are below the surface of sea.
What does the continental margin consist of?
Continental margins are made of thick accumulations of sedimentary rock, the type of rock in which oil and gas generally occur.
What is beach drift and longshore current?
The movement of sand along the shoreline is known as beach drift. The thicker blue arrow represents the waves approaching the shoreline at an angle. The narrower blue arrows show the current that develops as a result of the waves hitting the coastline at an angle. The current is called longshore current.
What is another name for longshore transport?
The terms littoral drift or littoral transport are occasionally used interchangeably with longshore transport. Prior to the 20th century, it was generally assumed that tidal currents provided the longshore motivation for beach sand.
What is longshore transport quizlet?
Longshore transport moves sediment upcoast or downcoast along the beach. Longshore transport can change direction depending on which direction the waves approach the beach. Longshore transport moves sediment in a zigzag path.
What is a longshore transportation?
Longshore transport refers to the cumulative movement of beach and nearshore sand parallel to the shore by the combined action of tides, wind, and waves and the shore-parallel currents produced by them.
What type of waves are sound wave a longitudinal wave B latitudinal wave C transversal wave D transmitted wave?
Longitudinal And Transverse Waves : Example Question #1 Explanation: Sound waves are longitudinal waves, meaning that the waves propagate by compression and rarefaction of their medium.
What do you understand by the longitudinal wave describe the longitudinal nature of sound waves?
For a sound wave traveling through air, the vibrations of the particles are best described as longitudinal. Longitudinal waves are waves in which the motion of the individual particles of the medium is in a direction that is parallel to the direction of energy transport.
What is transverse and longitudinal wave?
Transverse waves cause the medium to move perpendicular to the direction of the wave. Longitudinal waves cause the medium to move parallel to the direction of the wave.