Because in addition to the ambient temperature the direct sunlight is heating up what it is striking.
2007-06-11 05:40:18
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answer #1
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answered by CanProf 7
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There are three ways that heat is transmitted, these being conduction, convection and radiation. They work as follows:
Conduction is where heat is transmitted through a solid object, travelling at a speed dependent on the material. For example if you put an iron poker in a fire the heat of the fire will travel up the poker as the metal is heated.
Convection is where air is heated and by becoming less dense that colder air, rises as the cold air falls. Place your hand a couple of feet above a lighted candle and you will feel the heat rising.
Radiation is where heat is transmitted directly from the source irrespective of conduction or convection. An example of this is the heat from a fire or the sun.
The sun's heat is radiation and if you stand in the shade you will not feel the radiated heat. In the shade the heat felt there is dependent on conducted heat via the ground and convected heat from the surrounding air.
2007-06-11 08:29:02
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answer #2
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answered by quatt47 7
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The temperature outside is due to the sun heating up the earth's surface, and heat radiating up. In the shade, the sun is heating up the leaves of the tree, or whatever is making the shade. The ground around you is still heating up, but just a little less in the shade.
2007-06-11 05:44:11
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answer #3
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answered by mikecraig11 4
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its hotter where there is no hsde because the kight and heats from the sun are more exposed. in shade the branch or tree or whatever iscasting the shadow is blocking the light and heat from the ground therefore making it cooler
2007-06-11 05:41:09
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answer #4
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answered by Hermione Granger 3
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Because shade reduces the temperature rise from direct radiation and reduces the overall air temperature in the area.
2007-06-11 05:40:44
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answer #5
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answered by Mike1942f 7
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because shade blocks the sunlight and doesn't make the area so hot from the sun and if your standing under shade not only is it cooler from less sunlight and but you're also out of the direct sunlight yourself
2007-06-13 16:03:33
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answer #6
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answered by Anonymous
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there is nothing to block the source of heat, and light.
Try putting your face up to a lamp. then, put a piece of something in between. Wahlah. Magic. Shade is just blocking the source.
2007-06-11 05:40:51
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answer #7
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answered by ryan m 2
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You are feeling the direct radiant heat from the sun a bit like what you feel from the bar of an electric fire
2007-06-11 05:45:53
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answer #8
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answered by Pete H 3
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why didn't u sit in the shade - now u gone and sizzled your brain!
sun on head - bad! - hide from direct sun, especially in the midday - stay in the shade!!
2007-06-11 06:16:11
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answer #9
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answered by snowymountains123 4
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the shade takes the direct sun rays so it doesnt feel as hot when your under it
2007-06-11 05:40:55
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answer #10
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answered by twizz987 2
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