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The space is a vacuum but how the sun's heat reaches the earth?
Wiki User
∙ 14y ago
That is radiant heat, which travels through space by electromagnetic radiation, with a wavelength between radio waves and x-rays, or more specifically between infra-red and ultra-violet.
Heat can only go by radiation when there is no air to support conduction of convection.
Wiki User
∙ 11y ago
Wiki User
∙ 12y agoIt was proven a little over 100 years ago that electromagnetic radiation
can propagate without any medium to carry it.
Unlike sound, which needs matter in order to travel, light travels best in a vacuum.
Wiki User
∙ 14y agoIt reaches earth through electromagnetic radiation. Radiation does not need any medium to transfer energy.
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The way heat reaches the moon?
Since the space between the moon and other objects is essentially a vacuum, the only feasible mode for heat transfer is by radiative heat transfer.
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 form does suns energy have when it reaches earth?
The Sun's energy is given out mainly as "electromagnetic radiation". Light is a form of electromagnetic radiation. Heat is the main form the Sun's energy has when it reaches Earth, particularly the Earth's surface.
How does the energy of the sun reach earth and moon and other planets?
Radiation if that's the answer you're looking for... Radiation is the transfer of heat by electromagnetic waves (or light energy) traveling through space (but not outer space, just space like in the air).
Why does the earth remain warm after sunset?
The surface of the earth holds heat, and the greenhouse gases in the atmosphere hold heat all through the night. If the earth had no atmosphere, then at night all the heat would escape out to space and the earth would be freezing.
Does heat travel through a vacuum?
Actually heat cannot travel through vacuum. sun emits radiations (obviously electromagnetic radiations.) which needs no medium to travel. hence these radiations travel through space and reaches earth where it interacts with atmosphere. when these radiations fall on media like air, water land etc. the radiation is converted into heat energy. Thus it is clear that heat from sun is converted into radiations which travel through space and reaches earth where it is converted to light.
Can heat travel through vacuum?
Yes. Just look at how heat travles from space to Earth.
The way heat reaches the moon?
Since the space between the moon and other objects is essentially a vacuum, the only feasible mode for heat transfer is by radiative heat transfer.
Can heat energy travel through space a vacuum by convection?
Actually heat cannot travel through vacuum. sun emits radiations (obviously electromagnetic radiations.) which needs no medium to travel. hence these radiations travel through space and reaches earth where it interacts with atmosphere. when these radiations fall on media like air, water land etc. the radiation is converted into heat energy. Thus it is clear that heat from sun is converted into radiations which travel through space and reaches earth where it is converted to light.
Why is it cold in between the sun and earth?
Heat is caused by the vibration within atoms. Space is a vacuum and therefore there are no atoms to have any heat.
An example of a good radiator?
One such example of radiation is the heat travelling from the sun to earth. The space between it is vacuum.
Can heat radiation travel through a vacuum?
Yes, think of the radiation from the Sun, it must travel through the vacuum of space to warm our own planet Earth.
What evidence suggest that heat transferred by radiation does not used a medium?
The space between the Earth and the Sun is essentially a vacuum, yet we get plenty of heat from the Sun.
Is air a fluid why isn't convection responsible for transferring heat to earth from the sun?
Air is a fluid. Convection does not transfer heat from the sun to Earth because most of the intervening space is a vacuum.
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.
Does heat from the earths interior reaches earth through conduction?
Heat from the earth's interior reaches the surface through a combination of convection and conduction.
How does heat from the Sun travel through the vacuum of space to the Earth?
The Sun's energy is transmitted by electromagnetic radiation, with most of the heat caused by ultraviolet radiation striking the Earth's surface. This heat is re-radiated by infrared radiation.
