What is the shape of a convection current?
They transfer chemical and thermal energy in a circular pattern. They transfer chemical and potential energy in a circular pattern. They transfer thermal energy away from Earth's core toward its crust. Which best describes the shape of a convection current?
Which best describes a convection current?
The best description of a convection current is that e. it is the process in which warm material expands and rises while cool material contracts and… See full answer below.
Which best describes the convection current in Earth’s mantle?
Q. Which best describes the convection currents in Earth's mantle? They transfer potential energy away from Earth's core toward its crust.
Which is an example of convection currents quizlet?
Example – Metal spoon heats up in a hot pot of soup. The transfer of heat by the movement of a heated fluid is called convection.
What happens in a convection current?
convection currents occur when a heated fluid expands, becoming less dense, and rises. The fluid then cools and contracts, becoming more dense, and sinks.
Which best describes how air moves during convection?
Solution(By Examveda Team) In convection, hot air rises from the Earth's surface and becomes cold at higher altitude because of lower temperature there. As it cools, it sinks down to the surface of the Earth.
Which of the following is the best description of conduction?
Conduction is the process by which heat energy is transmitted through collisions between neighboring atoms or molecules. Conduction occurs more readily in solids and liquids, where the particles are closer together than in gases, where particles are further apart.
How are convection currents formed?
Convection currents are the result of differential heating. Lighter (less dense), warm material rises while heavier (more dense) cool material sinks. It is this movement that creates circulation patterns known as convection currents in the atmosphere, in water, and in the mantle of Earth.
What is a convection current quizlet?
Convection currents are the transfer of heat through the Earth's magma. They can be found in the mantle. The hottest part of the Earth is the core. the heat from the core is transferred into the lower mantle.
What is a convection quizlet?
What is convection? a type of heat transfer due to particles moving within a liquid or a gas.
How do particles move in convection?
Convection is the transfer of thermal energy by particles moving through a fluid. Thermal energy is always transferred from an area with a higher temperature to an area with a lower temperature. Moving particles transfer thermal energy through a fluid by forming convection currents.
Which of the following occurs because of convection currents?
Q. Which of the following occurs because of convection currents? Tectonic plates on the crust move.
Which best describes how heat energy moves within a system?
Conduction is one of the three main ways that heat energy moves from place to place. The other two ways heat moves around are radiation and convection. Conduction is the process by which heat energy is transmitted through collisions between neighboring atoms or molecules.
What is the name of the process by which air moves and carries heat energy with it?
Convection. Convection is the transfer of heat energy in a fluid. This type of heating is most commonly seen in the kitchen with a boiling liquid. Air in the atmosphere acts as a fluid.
What is the description of convection?
Definition of convection 1 : the action or process of conveying. 2a : movement in a gas or liquid in which the warmer parts move up and the cooler parts move down convection currents. b : the transfer of heat by convection foods cooked by convection — compare conduction, radiation.
What are some characteristics of convection?
convection, process by which heat is transferred by movement of a heated fluid such as air or water. Natural convection results from the tendency of most fluids to expand when heated—i.e., to become less dense and to rise as a result of the increased buoyancy.
What happens during convection?
convection, process by which heat is transferred by movement of a heated fluid such as air or water. Natural convection results from the tendency of most fluids to expand when heated—i.e., to become less dense and to rise as a result of the increased buoyancy.
How do convection currents form quizlet?
Convection currents occur when magma heats up near the core and rises. As it rises it cools down and spreads out, moving the plates. It cools down and spreads out, moving the plates. It then cools down and moves back towards the center of the earth where it heats up again!
Where could convection currents form quizlet?
Convection currents occur when magma heats up near the core and rises. As it rises it cools down and spreads out, moving the plates. It cools down and spreads out, moving the plates. It then cools down and moves back towards the center of the earth where it heats up again!
What do convection currents occur in?
Convection currents occur within:
- the geosphere – plate tectonics.
- the atmosphere – wind.
- the hydrosphere – ocean currents.
How is convection current formed?
Convection currents are the result of differential heating. Lighter (less dense), warm material rises while heavier (more dense) cool material sinks. It is this movement that creates circulation patterns known as convection currents in the atmosphere, in water, and in the mantle of Earth.
How do convection currents move?
Convection currents drive the movement of Earth's rigid tectonic plates in the planet's fluid molten mantle. In places where convection currents rise up towards the crust's surface, tectonic plates move away from each other in a process known as seafloor spreading (Fig.
Which is the best example of convection?
Everyday Examples of Convection boiling water – When water boils, the heat passes from the burner into the pot, heating the water at the bottom. This hot water rises and cooler water moves down to replace it, causing a circular motion.
Which statement describes how heat is transferred by convection?
Which statement describes how heat is transferred by convection? Air molecules touch the warm ground, heating them up. Sunlight travels through space without the aid of fluids or solids.
What is convection process of heat transfer?
Convection. Convective heat transfer is the transfer of heat between two bodies by currents of moving gas or fluid. In free convection, air or water moves away from the heated body as the warm air or water rises and is replaced by a cooler parcel of air or water.
Which of the following is an example of convection?
Convection is a form of heat transfer where a large number of molecules move from one place to another. An overhead fan works precisely by this method: it sends cooler air molecules down into a hot room, cooling the temperature of the room.
How is a convection current formed?
Convection currents are the result of differential heating. Lighter (less dense), warm material rises while heavier (more dense) cool material sinks. It is this movement that creates circulation patterns known as convection currents in the atmosphere, in water, and in the mantle of Earth.
What happens in convection?
convection, process by which heat is transferred by movement of a heated fluid such as air or water. Natural convection results from the tendency of most fluids to expand when heated—i.e., to become less dense and to rise as a result of the increased buoyancy.
What is convection short answer?
Convection is the circular motion that happens when warmer air or liquid — which has faster moving molecules, making it less dense — rises, while the cooler air or liquid drops down.
How do convection occur?
How does convection work? Convection works by areas of a liquid or gas heating or cooling greater than their surroundings, causing differences in temperature. These temperature differences then cause the areas to move as the hotter, less dense areas rise, and the cooler, more dense areas sink.