0
Convection currents are driven by an uneven temperature. It is the rise and fall movement of matter from a hot region to a cool region.
Velda Hauck
Wiki User
∙ 16y agoDensity and Convection Currents
Density is the amount of anything in a certain space; the quantity of a matter in a given area. Hot liquids are less dense than cold liquids. Currents are a flow of water, air, or any liquid (or gas). Convection currents are circular currents or movement within a liquid (or gas) due to different densities of the hotter and cooler parts. Hot liquids are less dense than cold and will rise. In the earth's deep mantle and outer core, the magma that is closer to the exteremely hot inner core rises because it's less dense and then pushes the cooler magma that is further from the intense heat down. When the cooler magma is pushed down, it is heated more and rises. The somewhat less hot magma is more dense and so sinks. This motion is convection currents and is what causes the plates to move that are riding on the surface of all of this.
The Earth's crust is composed of continental plates that are in constant motion because of the convection currents in the Earth's mantle and outer core. It is this movement that causes earthquakes and volcanoes.
Wiki User
∙ 11y agoThere are two main heat sources causing Earth's interior convection currents:
Frictional heat from gravitational distortions,
Heat generated from radioactive decay.
Related Information:
Minor sources include tectonic plate motion and the sun's radiant energy.
Some theoretical work indicates the possibility of a concentration of uranium at the center of the earth's core which would form a large, natural nuclear reactor and provide an additional source of heat. In addition, there is still likely some residual heat remaining from earth's formation (due to the energy of in-falling material being converted to heat).
Wiki User
∙ 9y agoConvection currents are driven by an uneven temperature. It is the rise and fall movement of matter from a hot region to a cool region.
Wiki User
∙ 14y agoThe uneven heating of Earth is the source.Which is technically the Sun
Wiki User
∙ 9y agouneven temperatures
Wiki User
∙ 13y agoHeat causes convection in air and water.
Add your answer:
Earn +20 pts
Heat energy can be transferred from a source to a receiver by?
Heat energy can be transferred from a source to a receiver by conduction, convection, and radiation.
Differences in a material's is what drives convection?
Differences in a materials __________ is what drives convection
A kite rises high above a hot sandy beach is an example of what kind of heat transfer?
thermal-type: radiation source: http://quizlet.com/2000966/heat-thermal-energy-states-of-matter-flash-cards/
Transfer of energy by movement of particles is?
Convection is the movement of particles due to a gradient of energy. Heat energy is thus transfered by the moving particles.
The type of thermal energy transfer that takes place in fluids is mostly?
Mode of energy transfer in fluids is convection.
What is the source of energy that drives convection into the earths apmosphere?
radiation received from the Sun!! :D
Where is the energy source found that drives the processes that form igneous rocks?
Mantle convection
Where is energy source that drives the processes that form igneous and metamorphic rocks?
Mantle convection
Where is the energy source found that drives the processes that form igneous and metamorphic?
Mantle convection
What is the source of energy that drives convection within the Earth's atmosphere?
radiation received from the Sun
Where is energy source found that drives the processes that form igneous and metamorphic rocks?
Mantle convection
What is the source of energy drives the movement of the lithosphere plates?
Asthenosphere
What is the main source of energy for convection in atmosphere and the ocean?
The Sun is the main source of energy for convection in the atmosphere and the oceans. The Sun, heat radiated form the Sun is the main source of energy driving convection in the atmosphere and oceans. There is also a small input form geothermal energy.
What is the the main source of energy for convection in the atmosphere and the oceans?
The Sun is the main source of energy for convection in the atmosphere and the oceans. The Sun, heat radiated form the Sun is the main source of energy driving convection in the atmosphere and oceans. There is also a small input form geothermal energy.
What is the main source of energy for convection in the atmosphere and the oceans?
The Sun is the main source of energy for convection in the atmosphere and the oceans. The Sun, heat radiated form the Sun is the main source of energy driving convection in the atmosphere and oceans. There is also a small input form geothermal energy.
What is the main source of convection in the atmosphere and the oceans?
The Sun is the main source of energy for convection in the atmosphere and the oceans. The Sun, heat radiated form the Sun is the main source of energy driving convection in the atmosphere and oceans. There is also a small input form geothermal energy.
How does energy from heat transfer from a hot source to a cold source?
Convection
