It rises
Because atmospheric air (as opposed to, say, compressed air in a Scuba tank) will expand upon heating, it will become less dense than the air around it. As long as the air around it is more dense, it will rise, due to buoyancy effects. As it rises, the pressure around it drops and it expands more or less isenthapically so that it cools as it rises and becomes more dense. When the density becomes the same as the air around it, it will stop rising. The whole time it is rising it will also be attempting to come to thermal equilibrium as well (i.e. come to the same temperature as the surrounding air).
During the day, the land is heated mainly by the sun's radiation warming the surface. The air is heated through conduction from the warm surface of the Earth. Water is heated through a combination of direct solar radiation and convection currents transferring heat energy.
Atmospheric air can be rapidly heated by factors such as strong sunlight, combustion reactions from wildfires or industrial processes, or localized temperature inversions where hot air is trapped near the Earth's surface. This leads to an increase in temperature and can result in the formation of heatwaves or other extreme weather phenomena.
No, the thermosphere is actually heated by the sun's intense radiation. The air in the thermosphere is very sparse, so it can be heated to extremely high temperatures due to the absorption of solar energy.
The transfer of heat in the atmosphere by the upward motion of air is known as convection. As the air near the Earth's surface is heated, it becomes less dense and rises, carrying heat upwards. This process is a key mechanism for transferring heat energy through the atmosphere.
The air near the Earth's surface is primarily heated by the Sun. Solar radiation warms the ground, which then heats the air through conduction and convection. Additionally, heat from human activities and natural processes can also contribute to heating the air near the Earth's surface.
In the energy cycle, air is typically heated using a heat source such as a furnace or a heat exchanger. The heat source raises the temperature of the air, which can then be circulated through a system to provide warmth or to transfer heat energy to other components in the cycle.
The heat from the filament radiates in all directions inside the bulb (as there is no air for convection). Once the heat reaches the glass the heat is now transmitted by both radiation and convection.Hot air rises so the air on the side of the bulb is heated and it rises up, it is now replaced by cooler air which needs to be heated. So the air on the side of the bulb is colder than the air on top. If you hand is on top of the bulb it will be heated by the air raising from the side as well as the top.
by the sun
The atmosphere is more heated from below because the air is thicker the farther down you go, and so it traps the heat in the air.
the heat caused the air inside to expand.
It can effect the air around it affect the object that is heated as well
Convection heat transfer requires air movement. This occurs when heated air rises, creating a flow that transfers heat from one location to another.
convection currents an example is a heat radiator...it radiates heat which warms the air. the air rises as its heated and cooler air takes its place then being heated by the radiator...this continues until the room is heated and so is a pot is on a stove and the water is boiling and the cold water is at the top and it goes to the bottom
Convection is the process by which heat is transferred through the movement of air or fluid. In this case, heated air rises and cooler air sinks, creating air currents that transfer heat within a space.
Yes, when heat travels by convection the energy is transferred by the circulation of a heated fluid, such as air or water.
convection currents an example is a heat radiator...it radiates heat which warms the air. the air rises as its heated and cooler air takes its place then being heated by the radiator...this continues until the room is heated and so is a pot is on a stove and the water is boiling and the cold water is at the top and it goes to the bottom
Heated air in a room rises due to its lower density compared to cooler air. As it rises, it displaces cooler air, creating a convection current where air circulates from the heated source to colder areas in the room. This movement helps distribute heat throughout the space.