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Radiation does not require a medium.
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∙ 10y ago
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Why can heat travel through space by radiation but not by conduction and convection?
For conduction and convection we need a material medium. But for radiation such a meaterial medium is not necessary. So in free space radiation can pass through easily.
What is radiation heat transfer?
energy that is radiated or transmitted in the form of rays or waves or particles. in other words, it is heat that is tranfered through air, rather that through solids. example: the sun heating earth.
Does radiation require a heated liquid to transfer energy?
No. radiant energy (including heat) can pass though a vacuum.
How does the sun heat travel to earth?
In the form of electromagnetic radiation.
Why is the sun the only star that provides heat and light to earth?
There are exactly 3 ways to move heat energy from one place to another:ConductionConvectionRadiationThe first two require a material medium. There's no material medium betweenthe Sun and the Earth. So if any heat is going to get here, it'll have to make thetrip in the form of radiation.
What is the method of heat transfer does not require a medium?
That refers to radiation.
What is a mechanism that heat transfer does not need a medium to travel through?
Radiant heat (electromagnetic waves) does not require a medium. Sunlight, infrared light, microwaves are all radiant heat in the form of electromagnetic radiation.
In which form of heat transfer is a medium not required?
Heat transfer by means of radiation doesn't heat the medium. In fact, radiation doesn't even require a medium in order to work. Strictly speaking, convection doesn't heat the medium either. Convection transfers heat by moving the medium around. Of course, heat also spreads throughout the medium by conduction while the convection is going on.
Why is radiation different to conduction and convection?
because, RADIATION occurs only in vaccum.. It does not require a medium to travel... where as conduction and convection require medium to travel. CONDUCTION: heat transfer between homogenous molecules(i.e.) flow of heat inside a body from one point to another. CONVECTION: heat transfer between two mediums(i.e) flow of heat from a metal to air surrounding the metal.
Does conduction require direct contact?
convection requires a medium to travel. In space there is no air but, a vacuum. Therefore direct heat from the sun is radiation as it does not require a medium to travel.
Does a radiation wave need a medium to travel?
No. Heat from the sun gets to the earth by radiation, and there is no medium inbetween the sun and the earth because space is a vacuum.
What does heat travel through space as?
By Radiation. There Are three modes of heat transfer depending on medium(like fliud or solid). Conduction(solids and fliuds), Convection (fliuds) and Radiation(vaccum). In space there is no medium i.e,Vaccum.So that in space the heat transfer the mode of radiation.
Why can heat travel through space by radiation but not by conduction and convection?
For conduction and convection we need a material medium. But for radiation such a meaterial medium is not necessary. So in free space radiation can pass through easily.
How is heat transfer by radiation different from both convection and conduction?
The main difference is that radiation can travel through any medium. Therefore, it is different.
Can heat travel through space where there is no air?
It depends on how you want to look at it. heat can only be transferred three ways: Convection, which is transferring heat through a fluid, Conduction, which is transfer of heat through a solid, and by radiation, which is emitted light in the infrared wavelengths. radiation can travel through space just fine, but convection and conduction are right out if there isn't anything that can be heated up. Radiation doesn't require a medium, and can thus transfer heat through a vacuum.
Why doesn't radiation need a medium to transfer heat energy?
Radiation needs no medium to travel as it is a simple transmission of electromagnetic waves and here heat is transferred not by heating the particles alternatively as in conduction or convection but directly through waves.
Heat flow through empty space occurs through radiation?
Correct. Heat Transfering by Radiation does not require a medium to use such as an empty space. For example, Radiation through outer space, Heat emanating from the campfire or fire source.
