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What is heated by radiation?
Radiation is a method of heat transfer that does not rely on any contact between the heat source and the heated object (as is the case with convection and conduction) Examples of radiation is heat from the sun or from the fliament of a light bulb
What makes a light bulb an example of radiation?
The luminous radiation emitted by the light bulb.
What radiation is the light bulb?
Light, heat, and a very small amount of electromagnetic field.
How does radiation occur in a light bulb?
Yes, if its on.
The suns energy reaches the earth by what type of heat transfer?
Electromagnetic radiation. Light is the best known form of electromagnetic radiation, but the Sun puts out radiation across a wide spectrum of frequencies, from all the down where AM radio is, up through X-rays. Any radiation that gets absorbed (even a little bit) heats up the earth. There is some radiation (infrared) that we can perceive directly with our skin, but others (microwaves and light are two examples) can be absorbed by something, and then re-radiated as heat (or the things that absorbed the radiation get hotter and they heat things around them up by conduction.) But it all starts with some kind of radiation emitted by the sun being absorbed by something here on earth.
What is heated by radiation?
Radiation is a method of heat transfer that does not rely on any contact between the heat source and the heated object (as is the case with convection and conduction) Examples of radiation is heat from the sun or from the fliament of a light bulb
How can an electric light bulb transfer heat in covection radiation and conduction?
Conduction: Heat travels via Metal parts on Bulb Convection Current: Hot air around bulb rises and cool air replaces it thus heat from bulb will consistantly warm up cool air around it. Radiation: Bulb is bright and shiny, thus emits infra red radiation. These are my opinion and they are not model answers. Mr Lin. from Singapore zillusia100 a.t. yahoo point com point sg
How can conduction be helpful?
Conduction can cause a spark which can light a light bulb. Conduction can be used to heat up metals.
What makes a light bulb an example of radiation?
The luminous radiation emitted by the light bulb.
What radiation is the light bulb?
Light, heat, and a very small amount of electromagnetic field.
What are you feeling when you feel the warmth from a light bulb on your skin?
Conduction
How does radiation occur in a light bulb?
Yes, if its on.
Explain why heat doesnt reach your hand by means of convection and conduction?
I can't explain why it doesn't, because it does.Take a 100W incandescent light bulb, lit up.Place your hand a few feet to the side of it; you receive heat by radiationPut your hand a few feet above it; now you get heat by convection as well.Put your hand touching the top; now you get heat by conduction as well.
Is heat from a light bulb radiant heat?
Some of it is, though some of it is convection.
If you increase the number of watts in a light bulb will the amount of radiation it produces increase too?
If you are talking about light radiation then the answer is yes. You can see the difference between a 40 watt bulb and a 100 watt bulb just by looking at them.
Can you name three convection currents?
The Mantel and CoresOne is RadiatorKettle, Electric Heater and Light Bulb
The suns energy reaches the earth by what type of heat transfer?
Electromagnetic radiation. Light is the best known form of electromagnetic radiation, but the Sun puts out radiation across a wide spectrum of frequencies, from all the down where AM radio is, up through X-rays. Any radiation that gets absorbed (even a little bit) heats up the earth. There is some radiation (infrared) that we can perceive directly with our skin, but others (microwaves and light are two examples) can be absorbed by something, and then re-radiated as heat (or the things that absorbed the radiation get hotter and they heat things around them up by conduction.) But it all starts with some kind of radiation emitted by the sun being absorbed by something here on earth.
