it heats it up because the room temp is hot cause your bodys hot that's why.
It relys on it because convection are the air currents that have to be heated by something, so you need objects to radiate heat to heat up the air to start the current
Cup of coffee ! - that is the easiest thing because the coffee in the cup heats up and the atoms bounce of the cup and move around. There movement takes place and movement deals with convection ! More Examples Without Explanations: -lava lamp -stove item -spoon in pot of soup -................
Convection currents can form any time at any place, even in your stove or house. It is created when a warm fluid rises and moves, becomes cold, falls, and is heated up again. it is a cycle see!! For example, pretend you are boiling water. The fire heats up the water at the bottom, the water rises than cools when it is on the fire and is not being heated. So the cold water falls again and later heats up due to the fire. Oh yeah, warm fluid has less density, so it rises, cold fluids have a greater density, so it falls.
The sun, originally, but the sun actually heats the earth, and warm air rises from the surface of the earth and is trapped by greenhouse gases in the atmosphere. This is mostly how the air gets warm.
It heats up
Yes, the mantle of the Earth continually heats up and cools down using convection currents.
Convection currents.
It is radiation. Sunlight enters the car and heats up material inside.
This is known as convection.
the sea water heats up or cools down the air so it will make the air sink or rise which is to do with convection.
This is by both radiation and convection.
Convection causes this as hot air raises up, it heats the top bunc bed
Convection is when hot substances rise and cool ones sink. The colored wax heats up at the bottom of the lamp where the bulb is, then rises up, cools, and sinks again.
The atmosphere is affected by convention because convection heats the lower atmosphere. Radiation transfers energy which other gases heat up. Conduction does not impact the atmosphere in these same ways.
As the suns rays hit the solar panel and heats up, the air or liquid heats up and becomes less dense so it rises, this now leaves the dense cool air to heat up which is lower since cool air doesn't rise. The sun heats up the cool air or liquid (usually solar panels are used to heat up hot water tanks) and this rises also, this has now made a 'convection current', the liquid will continue this convection current until its all at the same temperature. Solids do not go through convection current because the particles are closely packed and don't move because they have a definite shape.
convection currents work when heated water cools then goes to the bottom then heats back up
For The conventional oven, there would be convection that heats and re-heats the air. As the heat rises, it peaks and cools, then drops back down just to be heated up again.