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Heat travels via three possible mechanisms: conduction, convection, and radiation.
Heat can travel by convection through any space containing mass. Some materials are very good insulators and heat can only travel very slowly through them. Heat cannot travel via conduction through a perfect vacuum. Conduction occurs via molecules interacting with each other - usually colliding. Where mass is widely dispersed - such as very low pressure gas - conduction takes a lot longer because collisions occur infrequently.
Heat travels by convection when mass at one temperature moves into a region at a different temperature. Simple examples include fans blowing air around and hot air rising from the pavement. Where there is no mass to move around, heat cannot move via convection.
Heat can travel via radiation through any medium that permits passage of electromagnetic radiation - so heat travels just fine through a vacuum. Obviously if some mass is interposed that intercepts the radiation, then the heat must either be transmitted through it, reflected by it, or absorbed by it. If it is transmitted, then it can continue on its way as radiation. There are no perfect reflectors but there are some that are pretty good. That's the reason the surfaces of cryogenic vessels and even a lot of thermoses are silvered. If the heat is absorbed by the mass, it will, in turn re-radiate it, albeit probably at a different wavelength than it had when it was absorbed. No matter how you slice it, heat still travels through it, whether vacuum or filled with mass.
The one exception is when the gravitational forces are so extreme that no energy can escape. Heat crossing the event horizon of a black hole will not travel through the space where the black hole is sucking everything in - it will just get sucked in with everything else.
Wiki User
∙ 11y ago
There is no material that completely prevents the flow of heat. However, materials that are good insulators have low thermal conductivity, meaning they slow down the transfer of heat. Some examples of good insulators include air, wool, fiberglass, and certain types of foam or plastic.
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When heat energy travels through solid materials it is called?
The movement of heat through a solid is called heat conduction.
What is conduction of heat and give examples of 2 materials that are good conductors?
conduction of heat is when lets the flow of electricity run through. Two good conductors are water and metal. Like when a metal spoon gets hot when you put it in soup. but plastic does not do that
Is outer space a conductor of heat?
Heat can travel through outer space as radiation. However, space is more or less a vacuum, so it's not a conductor of heat.
What is the speed of a heat wave?
Sound is a mechanical vibration in the form of a pressure wave. Its speed is fastest is rigid materials like diamond (about 12000 meters/second) or steel (about 6000 meters/second) and slower in nonrigid low density materials like air (about 340 meters/second). It cannot travel at all through empty space.Heat is electromagnetic radiation similar to light and radio waves and travels fastest in empty space (exactly 299,792,458 meters/second) and slower (or not at all) through materials.
Will heat travel faster through a glass cup or a plastic cup?
It depends on the kind of plastic but mostly (I'd think) plastic is a better insulator for heat transport
Which is true heat can travel well through all materials or heat can travel well through some materials?
Some, but not all. Some materials are insulators- heat does not travel well through them.
What materials do not let heat travel through are called?
Insulators- do not let heat through
Can heat travel well through some materials?
yes can
How does heat travel throughteach state of matter?
Heat travels through waves of insulation through metals and other materials. The only metals that heat does not travel through are aluminum and nickel.
What types of materials does heat not travel through?
Heat can and does travel through all matter. It's just that some materials carry it much slower than others, and these are called insulators. The best ones being foam type materials.
How does heat travel by conduction through different materials?
By speeding up adjacent molicules.
What scientific name is given to materials that allow heat to travel along them?
Materials that allow heat to travel along them are known as conductors. Conductors have high thermal conductivity, allowing heat to pass through them easily.
Why cant heat from the sun travel through space?
because there is nothing but empty space and the partcles cant bounce and vibrate against each other
What M is a type of material that lets heat flow through it?
metal
Can heat travel through water?
heat may be able to go through water..................................
What example of materials allow heat to travel?
Copper, silver and aluminum are all good conductors of heat.
Can heat travel through a vaccume by radiation only?
Rradiation is the only way that heat can travel in a vacuum.
