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Becasue heat radiation(Infra-red) is part of the electromagnetic spectrum. All waves in the electromagnetic spectrum(e.g light, radio waves) don't need particles(mass) to carry energy.

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Can heat radiation travel through a vacuum?

Yes, heat radiation can travel through a vacuum because it does not require a medium for transfer like conduction or convection. This is why the Sun's heat can reach the Earth through the vacuum of space.


Does heat radiation require a medium to travel?

No, heat radiation does not require a medium to travel. It can travel through a vacuum since it consists of electromagnetic waves. This is why the Sun's heat reaches us on Earth through the vacuum of space.


Can heat pass through a vacuum by radiation?

Yes, heat can pass through a vacuum by radiation. All objects emit thermal radiation, which can travel through a vacuum without the need for a medium. This is how the Sun's energy reaches the Earth through the vacuum of space.


Can heat travel through a vaccume by radiation only?

Rradiation is the only way that heat can travel in a vacuum.


Can heat travel by convection through a vacuum?

No. Convection requires a carrier to convey the heat. Vacuum says there is nothing to do the conveying. Radiation does not need a convector, so heat can travel by radiation through a vacuum, like the radiation from the sun.


What is the only way heat travels through a vacuum?

The only way heat can travel through a vacuum is through radiation. Radiation is the transfer of heat in the form of electromagnetic waves, such as infrared radiation, which does not require a medium like air or water to propagate.


What is the only form of heat transfer that can cross a vacuum?

The only form of heat transfer that can cross a vacuum is radiation. Radiation does not require a medium to transfer heat and can travel through the vacuum of space.


Does Heat require a medium?

No, heat does not require a medium to travel. Heat can be transferred through conduction, convection, or radiation, and can travel through a vacuum as well.


What does heat and light travel in?

Heat can travel through conduction, convection, or radiation. Light travels in waves, specifically as electromagnetic radiation, which can move through a vacuum or a medium.


Heat transfer by radiation is the only method of heat transfer that can travel through a vacuum. What is a vacuum?

A vacuum is a space where there is no, or very little matter (ex. air molecules). One example of a vacuum is outer space. Because there is no matter for heat to travel through via convection or conduction, radiation is the only heat transfer that can take place in a vacuum.


Can heat transfer by radiation through occur in a vacuum?

Yes, heat transfer by radiation can occur in a vacuum because radiation does not require a medium to travel through. It can transfer energy in the form of electromagnetic waves from one object to another even in the absence of matter, as in the vacuum of space.


Is it possible for heat to flow across a vacuum?

Heat needs something to "flow" through. In a vacuum it will not have a medium to travel through and so heat cannot flow across a vacuum. Radiant heat will travel through a vacuum but here it is the light energy that is passing through the vacuum, not the heat energy.