- Is DC safer than AC?
- How deep do ocean currents go?
- How do currents move in the ocean?
- What are the 5 major ocean currents?
- What are the main ocean currents?
- What are 4 examples of convection?
- What is the fastest ocean current in the world?
- What is the effect of convection currents?
- How do convection currents work in the earth?
- Why is ocean water salty?
- Where are the strongest ocean currents?
- What are the 3 types of currents?
- How do convection currents work in the ocean?
- How do ocean currents work for kids?
- What are 2 types of ocean currents?
- What are the 3 major ocean currents?
- What causes currents in the ocean?
- What are 2 types of currents?
Is DC safer than AC?
is More Dangerous than D.C.
is said to be four to five times more dangerous than D.C.
For one thing, A.C.
causes more severe muscular contractions.
For another, it stimulates sweating, which lowers the skin resistance.
The frequency of the AC has a lot to do with the effect on the human body..
How deep do ocean currents go?
Ocean currents are located at the ocean surface and in deep water below 300 meters (984 feet). They can move water horizontally and vertically and occur on both local and global scales.
How do currents move in the ocean?
Ocean currents can be caused by wind, density differences in water masses caused by temperature and salinity variations, gravity, and events such as earthquakes or storms. … These currents move water masses through the deep ocean—taking nutrients, oxygen, and heat with them.
What are the 5 major ocean currents?
There are five major gyres: the North and South Pacific Subtropical Gyres, the North and South Atlantic Subtropical Gyres, and the Indian Ocean Subtropical Gyre.
What are the main ocean currents?
There are five main gyres: the North and South Pacific Subtropical Gyres, the North and South Atlantic Subtropical Gyres, and the Indian Ocean Subtropical Gyre. These surface currents play an important role in moderating climate by transferring heat from the equator towards the poles.
What are 4 examples of convection?
Examples of ConvectionBoiling water – The heat passes from the burner into the pot, heating the water at the bottom. … Radiator – Puts warm air out at the top and draws in cooler air at the bottom.Steaming cup of hot tea – The steam is showing heat being transfered into the air.Ice melting – Heat moves to the ice from the air.More items…
What is the fastest ocean current in the world?
Gulf StreamOff the Atlantic seaboard of the United States, the Gulf Stream flows at a rate nearly 300 times faster than the typical flow of the Amazon River. The velocity of the current is fastest near the surface, with the maximum speed typically about 5.6 miles per hour (nine kilometers per hour).
What is the effect of convection currents?
It is this movement that creates circulation patterns known as convection currents in the atmosphere, in water, and in the mantle of Earth. In the atmosphere, as air warms it rises, allowing cooler air to flow in underneath. Along with the turning of the Earth, this movement of air creates winds.
How do convection currents work in the earth?
Convection currents in the air and sea lead to weather. Magma in the Earth’s mantle moves in convection currents. The hot core heats the material above it, causing it to rise toward the crust, where it cools. … The magma can’t continue to rise, so it moves horizontally and sinks back down.
Why is ocean water salty?
Salt in the ocean comes from two sources: runoff from the land and openings in the seafloor. Rocks on land are the major source of salts dissolved in seawater. Rainwater that falls on land is slightly acidic, so it erodes rocks. … Ocean water seeps into cracks in the seafloor and is heated by magma from the Earth’s core.
Where are the strongest ocean currents?
The Antarctic Circumpolar Current is the strongest current system in the world oceans and the only ocean current linking all major oceans: the Atlantic, Indian, and Pacific Oceans.
What are the 3 types of currents?
The main causes of ocean currents are wind, the Earth’s rotation and differences in water density within oceans. Different types include surface currents, deep ocean currents and tidal currents. The majority of the world’s oceans’ surface currents are caused by the wind.
How do convection currents work in the ocean?
Convection occurs because the oceanic waters heat up becoming less dense. This water moves above the cooler water, and give off its heat to the surrounding environment. As it cools, it begins to sink, and the process begins again. Convection results in the continual circulation of ocean water on a global scale.
How do ocean currents work for kids?
An ocean current is the horizontal movement of seawater. … Surface currents are caused mainly by wind blowing across the surface of the water and the friction causing waves. Deep water currents are caused by many things, such as temperature changes, salinity, gravity, and density.
What are 2 types of ocean currents?
There are two type of Ocean Currents:Surface Currents–Surface Circulation.Deep Water Currents–Thermohaline Circulation.Primary Forces–start the water moving.The primary forces are:Secondary Forces–influence where the currents flow.Solar heating cause water to expand.More items…
What are the 3 major ocean currents?
What are the names of the major ocean currents in the world?Ocean CurrentDescriptionNorth Equatorial CurrentEast-to-west flowing current from 10°-20°N in the Pacific and Atlantic OceanNorth Equatorial Counter Current (NECC)West-to-east flowing current from 3°-10°N in the Atlantic, Indian Ocean and Pacific Ocean7 more rows•May 17, 2020
What causes currents in the ocean?
Winds, water density, and tides all drive ocean currents. Coastal and sea floor features influence their location, direction, and speed. Earth’s rotation results in the Coriolis effect which also influences ocean currents.
What are 2 types of currents?
Direct and Alternating Current There are two different types of current in widespread use today. They are direct current, abbreviated DC, and alternating current, abbreviated AC. In a direct current, the electrons flow in one direction.