The farther away you are from a light source, the __ intense it is?
138271
This question has two different answers depending on how you read it.  The intensity of the light that reaches you will be reduced as you move away from it, but the intensity of the source stays constant.  Its a matter of perspective, so therefore the preson who asked you this question should clarify it for you.  I'd write both answers and explain each.  Your teacher should except that.
717458
OK, your question and your statement don't really add up.  However to influence someone's brain from a distance is possible.  Using ULF (Ultra Low Frequency) emissions, you could render your target slightly insane for short periods of time.
757465
Yes.\n\nLight intensity is often measured in units known as candelas. This used to be called candlepower, and one candlepower was the amount of light shining one foot away from a candle. If you cast one candela on one square foot of area, you now have one lumen - the root of the term luminous. Your units (mcd) are millicandelas. For far more detail, see the link below:
533149
The rods in the eye are so sensitive that it can react to one ten-billionth of a watt.\n\nThis is equivalent of a match struck on a clear, pitch dark night 50 miles (80 km) away. \n\nOf course, for someone to actually see that match, there would have to be impossibly ideal conditions; a total absence of other light sources and a perfectly clear atmosphere.
948640
At latitudes between 231/2 degrees north and 231/2 degrees south, the sun is directly overhead at noon twice a year. In these cases, the sun's rays shine directly down toward the surface. The radiation that reaches the atmosphere is therefore at its most intense. \n\nIn all other cases, the rays arrive at an angle to the surface and are therefore less intense. The closer a place is to the poles, the smaller the angle and therefore the less intense the radiation. Due to decreases in the intensity of radiation, average temperatures decline from the equator to the poles. Seasonal changes in solar radiation and the number of hours of sunlight also vary with latitude.
415799
A lot faster! Interesting point!\nBy the way you have more chance of being hit by lightening than winning the lottery!!! hehe :)
77624
In my opionion, It is more like a very tightly compacted wave, of which light is a part. When matter is released back to it original wave state it emites, heat wave, sound wave, and a full spectrum of radiation waves from micro, to light, to gamma and everything that surrounds that visible and invisible spectrum.
544600
I had a close encounter many years ago, when I was a boy scout and having field camp in school. It happen to be a thunderstorm and I was walking in an open field with an unbrella when I felt my hairs standing on end. Next thing I knew, lightning struck a metal fence some 15 feet away. I was shocked by this, but felt nothing and continued my way to the nearest shelter!\nSo the next time I feel a build up of static electricity around me, I am going to run into the nearest building I can find. Especially on a rainy day.
391829
Venus, but the brightness of the light reflecting off it is simply because of its close proximity to earth.
152957
It's really far away.
1183282
NO.\n\nIt is only an effect of a cloud being illuminated by a distant lightning flash.
803798
How far as in distance or to what extremes? Get some what? Ya might want to be more clear....or is this the fill in the blanks game?
817728
Light is emitted by objects that are very hot.\nLight is emitted by objects that are at very high temperatures.
902826
It is because, they're so far away from us that the rays of light the falls on us in almost perfectly paralel. Unlike the sun whose lights spreads in the atmostphere.
454279
it gets absorbed by your surroundings.
538925
Also depends on conditions where the watcher is.  In 1995 I was backpacking in the mountians of northern New Mexico and we could clearly see the headlights on the interstate over 15 miles away.  At the same location in 1982 we were able to see a handheld flashlight aimed down from the top of a mountain at over 3 miles distance.
865051
I am guessing you are asking a more basic question.  Light spreads out as it propogates making stuff that is far away appear dimmer.  Understanding the distance to something is therefore necessary to understand the total power production of a source. If light did not spread out, this would not be an issue in research. \n\nThe apparent brightness falls off by a factor of 1/d^2 where d is the distance between the observer and an unresolved ("point") source.