Question: What Causes Convection Currents Quizlet?

How do convection currents move?

The crust moves because of movements deep inside the earth.

Heat rising and falling inside the mantle creates convection currents generated by radioactive decay in the core.

The convection currents move the plates.

Where convection currents diverge near the Earth’s crust, plates move apart..

When would a convection current stop?

What happens after the heat source is removed? Without heat, the convection currents will eventually stop when all of the material has reached the same temperature. v Checkpoint What is convection? Figure 10 Heat from Earth’s mantle and core causes convection currents to form in the asthenosphere.

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…

Which are examples of convection currents quizlet?

An example of convection is heating a pot of soup on a stove. As soup at the bottom of the pot gets hot, it expands and becomes less dense. The warm, less dense soup moves upward, floating over cooler, denser soup.

What are convection currents and what causes them quizlet?

Heating and cooling of the fluid, changes in the fluid’s density, and the force of gravity combine to set convection currents in motion. Convection Currents. Differences in temperature and density cause convection currents.

What does convection current mean?

A convection current is a process that involves the movement of energy from one place to another. It is also called to as convection heat transfer. … These things happen as a result of the Convection Currents. The convection currents tend to move a fluid or gas particles from one place to another.

What would happen if convection currents stopped?

Answer 1: If all convection currents on Earth stopped that would be a natural disaster. The amount of heat which the sun radiates at us sets the temperature of the Earth’s surface. … So if convection completely stopped the high and low temperatures would force people and animals to move away from the poles and equator.

What is convection current air?

convection. 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. … Convection currents within the earth move layers of magma, and convection in the ocean creates currents.

What three factors set convection currents?

A convection current is the flow that transfers heat within a fluid. Heating and cooling of the fluid, changes in the fluid’s density, and the force of gravity combine to set convection currents in motion.

What causes the convection currents in the mantle?

Heat from the core and the mantle itself causes convection currents in the mantle. … Many geologists think that plumes of mantle rock rise slowly from the bottom of the mantle toward the top. The hot rock eventually cools and sinks back through the mantle. Over and over, the cycle of rising and sinking takes place.

What are convection currents caused by?

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.

Which are examples of convection currents?

Examples of Convection Currents and Energy ScaleYou can observe convection currents in water boiling in a pot. … A simple example of convection currents is warm air rising toward the ceiling or attic of a house. … Wind is an example of a convection current. … Combustion generates convection currents.More items…•

How do convection currents affect the Earth?

Convection currents describe the rising, spread, and sinking of gas, liquid, or molten material caused by the application of heat. … Tremendous heat and pressure within the earth cause the hot magma to flow in convection currents. These currents cause the movement of the tectonic plates that make up the earth’s crust.