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The sun is a big fire ball made up with hot flaming gas.
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∙ 10y ago
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Why the sun a star but the moon is not?
A star is an object that radiates its own heat and light. A typical star is a superheated ball of hydrogen and helium that releases energy through nuclear fusion. The moon is much smaller and less massive than any star and is mostly made of rock. It does not produce its own light, but simply reflects light from the sun.
What do the sun and a light bulb have in common?
They both give off heat and light (fluorescent bulbs give off considerably less heat than incandescent bulbs), and most of the heat is "wasted" in that it is not used for any productive purpose.
Are stars holes in the sky?
No. Stars are massive balls of hydrogen and helium that produce heat and light through nuclear fusion. Our sun is a star, only appearing bigger and brighter because it is much closer to us.
How much energy does the sun produce every second?
The sun produces 4 billion kilograms of energy per second..
Is solar energy an inexhaustible resources?
It is. As long as that sun is shining we have a renewable clean energy resource at our hands. Unfortunately it isn't being used as much as you would hope.Its use is growing - both direct use of light such as by photovoltaic electricity, and indirectly as its heat is the energy behind wind and water power.
What produce the sun?
the sun produces light ,heat ,energy,and so much more
How are light emitting diodes able to produce so much light but without producing any heat?
The electrons in the electric circuit excite the atoms of the diode efficiently, not much energy is wasted (in the form of heat).
Can there be a light that does not produce heat?
LED .. Light Emitting Diodes , they're known for their very low energy consumption and they do not emit much heat. As of now , there is no kind of light which does not produce heat . But , LED's fit in as very efficient light emitters which produce very less heat. Also LED's have a life line which is way greater when compared to normal lights. Hope this helps =)
Why Led bulb are better than filament bulbs for maximum reduction in the consumption of electrical energy explain?
LEDs produce visible light and not heat. Filament bulbs use much of their energy to produce heat. The LED bulb produces more light per watt consumed.
What energy is wasted from a lamp?
that is dependant on the wattage of the bulb, the wattage 40W, 60W, 100W, is the rated power that a bulb will use. 1kW is equal to 1000W 1kWh is equal to 1000W per hour. kW stands for kilo watt I hope that helps
In a 60 watt light bulb how much energy is converted into heat?
What are the uses of Heat energy
Are light bulbs really efficient?
Normal incandescent bulbs produce a lot of heat as well as light, so are not so efficient as low energy bulbs which can give the same light but consume much less electricity
What is the relationship between appliances power rating and the amount of heat it produce?
power rating is the rate of moving energy their relationship in the amount of heat it produce it divided by time to move that much energy
Is that light energy or heat energy of solar energy is converted into the electric energy?
A photocell converts light energy (radiant electromagnetic energy to be precise) into electrical energy. A thermocouple can convert heat into electrical energy. The radiant em conversion yields much more energy than a heat conversion.
Is a light bulb an example of light energy or of electrical energy?
A light bulb converts energy from one form to another: from electrical energy to thermal energy in the form of light and heat. Most light bulbs which have an incandescent filament convert electricity into some light energy plus a lot more heat energy, whilst the type of light bulbs which use fluorescent tubes create much less heat and thus require much less electrical energy to run. Typically, to produce the same amount of light energy, compact fluorescent light bulbs require only 20% of the electrical power drawn by incandescents.
Most energy transformations produce what form of energy?
In most energy transformations, part of the energy is wasted. Much of the wasted energy is usually converted to heat.
What kind of light bulb gives off the most heat?
Incandescent bulbs produce the most heat for a given amount of light; fluorescent lights produce much less heat, and LED produces the least.
