Describe How a Convection Current Occurs

A convection current forms when the plasma rises and the cooled plasma descends. Convection occurs when heat is transferred through a gas or liquid by the hotter material moving into a cooler area.

Convection Currents Ppt Download

Can anyone find the answers to the lab 2.

. Convection currents occur when a reservoir of fluid is heated at the bottom and allowed to cool at the top. Convection currents in Earths mantle are caused by the rise of hot material rising towards the crust becoming cooler and sinking back down. Heat transfer by convection is caused by differences in temperature and density within a fluid.

The transfer of heat by the movement of a heated fluid is called convection. The initial heat transfer between the object and the fluid takes place through conduction but the bulk heat transfer happens due to the motion of the fluid. If there is cooler material on top it will be more compact and therefore will sink to the bottom.

Geography 21062019 2330 Amie4100. Convection occurs when particles with a lot of heat energy in a liquid or gas move and take the place of particles with less heat energy. During convection heated particles of a fluid begin to flow transferring heat energy from one part of the fluid to another.

Convection currents are the movement of fluid as a result of differential heating or convection. Convection currents are the result of differential heating. This fluid in turn is heated rises and pulls down more cool fluid.

2 What is a constructive force caused by the I convection currents in the earths mantle. Convection currents are part of what drives global circulation of the Earths atmosphere. A convection current is a form of transfer of energy.

In the atmosphere convection currents occur due to the heating of the Earths surface by radiant energy from the sun. Describe how a convection current occurs. Combustion generates convection currents.

The activity that results from the continuous replacement of the heated fluid in the area of the heat source by the nearby present cooler fluid is called a natural convection current. Shady or moist areas are cooler or able to absorb heat adding to the effect. Describe how convection currents occur in the mantle.

The transfer of heat as a result of the movement of large proportions of molecules together within the fluids is called convection. Convection current is the flow of hot fluid in a circular pattern. 1 Get Other questions on the subject.

Convection is the process of heat transfer by the bulk movement of molecules within fluids such as gases and liquids. Fluids include liquids and gases. The movement of the currents plays a factor in the movement of the mantle.

Exercise 1 bathymetric charts questions for sandy harbor so that i can check for accuracy. Discover what convection really is and review several examples of this phenomenon. The mantle within the earths surface flows due to convection.

Lighter less dense warm material rises while heavier more dense cool material sinks. Convection currents are the movement of fluid as a result of differential. Heat and heat energy are terms we use to describe the.

It requires the same temperature throughout the fluid for energy transfer. This cycle establishes a circular current that stops only when heat is evenly distributed throughout the fluid. Convection currents form because a heated fluid expands becoming less dense.

Heat causes the fluid to expand decreasing its density. The convection takes place in the gases and liquids for the transfer of thermal energy. Convection currents transfer heat from one place to another by mass motion of a fluid and earth mantle is in a semi-liquid state and should behave like any other fluid rising up from the bottom of the mantle after becoming hotter and less dense from heat of the earths core as the rock loses heat into the earths crust it becomes cooler and more dense then sinking.

In the case of the Earth convection currents refer to the motion of molten rock in the mantle as radioactive decay heats up magma causing it to rise and driving the global-scale flow of magma. As the air near the ground warms it becomes less dense and rises. The fluids can be both gases or liquids.

This creates a current within the fluid called Convection current. This process occurs repeatedly causing the currents to constantly flow. The exception is that combustion in a zero-gravity.

Convection currents are generated by the differences in densities of the fluid that occur due to temperature gradients. It occurs mainly in liquids but it can also occur in gases. Describe the convection currents that occur inside the earth.

Air current close to a radiator. Try to make it 6 lines or less Answers. Sunlight or reflected light radiates heat setting up a temperature difference that causes the air to move.

Due to this temperature difference the hot fluids tend to rise whereas cold fluids tend to sink. As it rises it pulls cooler fluid down to replace it. Describe how convection currents occur in Earths mantle.

Colder dense air falls to the surface where the earth heats it creating a cycle. Find step-by-step Physical science solutions and your answer to the following textbook question. The Earth is made out of a number of different layers and though we live on the.

The heat energy can be transferred by the process of convection by the difference occurring in temperature between the two parts of the fluid. It is this movement that creates circulation patterns known as convection currents in the atmosphere in water and in the mantle of Earth.

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