Does heat require a medium to travel? If it does, then how does it travel from sun to us? if space is filled up with some kind of matter that acts as an conductor for heat, why does the sky appear dark at nights, as the matter should scatter light? Or is it that we haven't yet researched too much on it?
2007-03-12 21:55:23 · 12 answers · asked by plato's ghost 5 in Science & Mathematics ➔ Physics
But Bulk O, heat is a transitional energy that can be absorbed by matter. How does this heat travel from its source to that particluar mass?
And guys, my question is What is the speed at which heat can travel? Light travels fastest in space, the denser the medium the lesser the speed. Similarly mediums may have impact on heat too. But when it's travelling through space, it's radiating. So doesn't that imply that speed of heat is close enough to that of light? Light is either reflected, or refracted by the medium, and heat is both abosrbed and reflected.
2007-03-13 03:24:38 · update #1
The process by which heat travels in space is called radiation- in this process heat radiations travel without any medium. heat radiations are actually infra red radiations which are a part of the electromagnetic spectrum....... hence they travel with the speed of light. There are other methods of heat transfer like conduction( requires medium but there is no bodily movement of medium particles like in the case of transfer of heat through metals) and convection( requires medium but in this case medium particles are transferred along with the heat)
2007-03-13 07:39:03 · answer #1 · answered by atashib 1 · 1⤊ 0⤋
Speed Of Heat
2016-11-10 01:11:33 · answer #2 · answered by kryst 4 · 0⤊ 0⤋
This Site Might Help You.
RE:
What is the speed of heat?
Does heat require a medium to travel? If it does, then how does it travel from sun to us? if space is filled up with some kind of matter that acts as an conductor for heat, why does the sky appear dark at nights, as the matter should scatter light? Or is it that we haven't yet researched too...
2015-08-14 05:51:00 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Heat travels 3 ways : conduction, convection and radiation.
The best analogy I have heard is a ball....
Conduction: a line of people pass the ball from one to the next in one direction.
Convection: one person picks up the ball and carries it to the end of the line.
Radiation: the first person throws the ball to the end of the line.
Obviously, throwing the ball is the fastest method of travel and (in the case of infra red heat) travels at the speed of light.
Conduction speed depends on the material. Some materials are good but some are insulative.
Convection happens on the movement of heated particles (air / dust etc.) and heat speed depends upon the speed of the carrier.
2016-06-04 11:23:13 · answer #4 · answered by James 1 · 0⤊ 0⤋
For the best answers, search on this site https://shorturl.im/j1Po1
The speed of heat depends on the matter of transportation. For example IR-radiation travels in the speed of light, 300.000.000 m/s. IR radiation can heat things which is apparent as the sun radiates IR-waves and the sun obviously can heat things. This is however different from what is traditionally considered as heat transportation. When you heat a piece of metal in one end the heat will eventually spread to the other end but it will take a while. A piece of wood is a better heat insulator and will transport the heat more inefficiently. The speed of heat is lower in wood than in metal. The exact figures I don´t know but they depend on the kind of metal and wood.
2016-04-01 00:56:06 · answer #5 · answered by Anonymous · 0⤊ 0⤋
The "speed of heat" like most things would depend on what being heated. Strictly speaking things heat up because energy is impart on them. And light is certainly energy. The interesting thing here is that it is when light is traveling through vacuum that it is traveling the fastest, and it is also given up the least amount of its energy to heat (very little friction). It is when it hits things like air that it slows down and imparts that energy into the air as heat.
You can see the same thing in electrical wire. A really good conductor like gold heats up very little in comparison for instance to the metal in your toaster which is made to have high resistance so that it will heat up. So in a way the easier that energy can move through something the slower heat will "move".
2007-03-12 22:14:45 · answer #6 · answered by Bulk O 5 · 0⤊ 0⤋
There are three ways for heat to travel:
diffusion: heated particles stretch themself throw space, resulting in a equal distribution
heat radiation: radiation is emitted by hot objects, transporting energy/heat
mechanical transport: when a hot object is connected to a cold one, it warms up the cold one.
In space there is not mutch more than vacuum, so heat between space is transported by heat radiation, which needs no medium.
2007-03-12 22:12:16 · answer #7 · answered by Anonymous · 0⤊ 0⤋
heat does require a medium...energy from sun reaches the earth in the form of light and other radiations which is converted to heat when it is incident on matter....
sky appears dark at night because there is no light coming from sun...so there is no chance of scattering...
2007-03-12 22:10:57 · answer #8 · answered by Anonymous · 0⤊ 1⤋
Heat doesn't travel fast where I live. The sun takes ages to warm up and my radiators are the same.
2007-03-12 22:00:26 · answer #9 · answered by Afi 7 · 0⤊ 1⤋
heat is energy and energy does not rquire mediums to travel for light reachs us from stars without, and the electromagnetic waves that go from one end of pole to another witout any medium are also energy
2007-03-12 23:38:24 · answer #10 · answered by Anonymous · 0⤊ 0⤋