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What is the definition of a convection?
convection is basically the up and down movement in gas and liquids caused by heat transfer.
Why since heat rises is it colder up in the mountains?
heat transfer to earth from sun by radiation then transfer through earth by conduction(transfer through particles) so as we go down temprature icrease and as we go up 15o metre over sea level temprature decrease by 1 celcius degree
What is the direct transfer of heat energy called?
conduction is the direct transfer of heat energy. It works like this:when two things to separate temperatures meet, then one cools down and the other heats up until they are both the same temperature.
How would heat transfer occur in water in a pot?
water would heat up
Why do different materials heat up at different rate?
usually metals or conductors get the heat energy from the heat. the heat transfer the particles in the conductors which causes it to heat up in a faster rate to get it hot.
What is the difference between conductionconvection and radiation?
Conduction: Transfer of heat from one object touching another Convection: Transfer of heat by a gas or liquid, Convection current is created when the gas or liquid warms up and rises, then gives up some of the heat and then falls to be heated again. Radiation: The transfer of heat by energy transfer alone, like sunlight.
What is the definition of a convection?
convection is basically the up and down movement in gas and liquids caused by heat transfer.
Why since heat rises is it colder up in the mountains?
heat transfer to earth from sun by radiation then transfer through earth by conduction(transfer through particles) so as we go down temprature icrease and as we go up 15o metre over sea level temprature decrease by 1 celcius degree
What is the direct transfer of heat energy called?
conduction is the direct transfer of heat energy. It works like this:when two things to separate temperatures meet, then one cools down and the other heats up until they are both the same temperature.
How would heat transfer occur in water in a pot?
water would heat up
Does the bubbles of a solar pool cover go up or down?
Personally, I disagree with the logic used by those above. If the bubbles are up, there will be larger surface area to absorb the sun's heat. Increased levels of heat absorption seems more important than the rate of heat transfer, especially when considering the fact that heat transfer takes place almost instantaniously.****i have tried it both ways, bubbles up or down. makes little or no difference heating. with bubbles down, though, it is easier to clean debrie off the cover and keep it clean.
Does heat flow up or down?
Up. Heat goes up.
Which type of heat transfer sets up currents in fluids?
The current in the fluid is the result of a difference in temperature at different depths.It's called convection, and it does the transferring of heat from the bottom to the topof the fluid.What sets up the convection currents is whatever it was that added heat to thebottom of it. That could have been conduction, radiation, or a chemical process.
Why do different materials heat up at different rate?
usually metals or conductors get the heat energy from the heat. the heat transfer the particles in the conductors which causes it to heat up in a faster rate to get it hot.
How does the lava cool down when its in air?
Air at Earth's surface is much cooler than lava is, the lava will start to transfer heat to the air on contact. The air heats up and the lava cools down.
Why does conductor heat up when current is passed through after a long time?
Heating up means increase in average speed of atoms oscillation. When current passes through the conductor electrons collide (impact) with atoms and transfer a part of their energy to them increasing their average speed. Error: "average" instead of "average"
Why do you say heat up and cool down instead of heat down and cool up?
To heat something means to bring the temperature up and to cool something means to bring temperature down. Hence the terms "Heat Up" and "Cool down". We actually do not need to add the up or down, as heat in itself means to rise, and cool means to lower. So instead of saying "I need to heat my food up", one could just say, " I need to heat my food".
