Mell What type of energy transfer is caused by differences in density?
Heat transfer by convection is caused by differences of temperature and density within a fluid. Density is a measure of how much mass there is in a volume of a substance.
Which form of energy transfer is most responsible for the creation of Earth’s air and ocean currents?
Explain how the process of convection can cause ocean currents. Water is warmed by the energy from the sun. When this warm water loses heat and cools, it becomes denser and begins to sink down. This constant exchange of heat energy creates convection currents as warm water rises and cold water sinks.
Which of the following processes can transfer energy through empty space?
Radiation is heat energy transmitted through empty space or heating the empty space by electromagnetic waves or infrared rays. This process involves only the molecules of the substance radiating the heat. Radiation can occur through a vacuum and is the way the sun’s heat is transferred to Earth.
What is the movement of matter due to density differences called?
“LMS Ch 22 Concept Review
| Question | Answer |
|---|---|
| the movement of matter due to differences in density that are caused by temperature variations; can result in the transfer of energy as heat | convection |
| the curving of the path of a moving object from an otherwise straight path due to Earth’s rotation | Coriolis effect |
What absorbs the energy of the sun?
About 23 percent of incoming solar energy is absorbed in the atmosphere by water vapor, dust, and ozone, and 48 percent passes through the atmosphere and is absorbed by the surface. Thus, about 71 percent of the total incoming solar energy is absorbed by the Earth system.
What would happen if the oceans were removed?
But let’s get back to what would happen if the oceans were gone. Without clouds forming over the ocean, rain would be incredibly rare, and the planet would become desert. We’d watch our lakes and water supplies dwindle a little more every year until nothing was left. Humans might survive for a while near our homes.
How much energy is in the ocean?
Ocean waves contain tremendous energy. The theoretical annual energy potential of waves off the coasts of the United States is estimated to be as much as 2.64 trillion kilowatthours, or the equivalent of about 64% of U.S. electricity generation in 2019.
What would happen if oceans were removed?
Well, without the oceans, the world loses 97% of its water. The small amount of liquid left wouldn’t be enough to sustain the water cycle. The pools of drinkable water would evaporate pretty fast. In a matter of days, people and most animals would die from dehydration.
Is ocean water in the surface is warmer convection?
Ocean Convection Convection drives the Gulf Stream and other currents that turn over and mix up the waters in the world’s oceans. Cold polar water is drawn down from higher latitudes and sinks to the ocean bottom, pulled down toward the equator as lighter, warmer water rises to the ocean’s surface.
Why is the density of ocean water different?
The density differences in the ocean water are due to different salt concentrations and differences in In the oceans the colder water sinks into deep basins, while warmer water stays closer to the surface. The water then moves around the ocean basin. This causes
Why does the ocean have so much energy?
It’s just math folks. The ocean contains so much energy that a thousandth of a degree change can throw 1C into our air temp instantaneously. Unfortunately the discussion is more complex than this because we need then to look at what happens to the release of that heat to space.
Why are there different currents in the ocean?
Ocean currents are caused by water’s density differences. The density differences in the ocean water are due to different salt concentrations and differences in In the oceans the colder water sinks into deep basins, while warmer water stays closer to the surface.
What causes the flow of water 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. Currents are cohesive streams of seawater that circulate through the ocean. Some are short-lived and small, while others are vast flows that take centuries to complete…