2006-10-23 07:03:10 · 7 answers · asked by C. 2 in Education & Reference ➔ Homework Help
There are many theories, and the purists will argue with this answer, but since you ask this under the "homework help" category instead of the Physic category, the answer is simple.
There are two states of existence: Matter and energy. Matter classically has mass. In other words, it occupies space. Energy does not. Examples of energy include heat, light, and motion (aka Kinetic energy). So, the classical definition of light is that it is energy, not matter.
2006-10-23 07:25:24 · answer #1 · answered by freebird 6 · 1⤊ 0⤋
Everything in the Universe vibrates at a given frequency. Solid objects are at a much lower frequency, whereas light is an ultra high frequency.
Within the frequency of light, there are then many different frequencies that are categorized as to hierarchy within the light spectrum. Some being at a rate that cannot be seen by the human eye. Infrared for example and gamma rays emitted from our sun.
If you use this on a test, good chance your Prof will not understand what you are talking about, ie a little over his/her head.
Darryl S.
2006-10-23 07:14:06 · answer #2 · answered by Stingray 5 · 0⤊ 0⤋
Because matter can't travel at the speed of light and light can.
2006-10-23 07:15:59 · answer #3 · answered by Maria 4 · 0⤊ 0⤋
Light is energy, part of the electro-magnetic spectrum. Matter is mass, groups of atoms. E = mc^2 is the equation. Energy = mass times speed of light, squared.
2006-10-23 07:12:56 · answer #4 · answered by Anonymous · 0⤊ 0⤋
matter is something you can look at,you can't look at light.
2006-10-23 07:10:13 · answer #5 · answered by don_steele54 6 · 0⤊ 1⤋
Who says it is not? It can be weighed and measured.
2006-10-23 07:06:51 · answer #6 · answered by omvg1 5 · 1⤊ 1⤋
because it doesn't have mass and it does not occupy space
2006-10-23 07:06:21 · answer #7 · answered by raj 7 · 1⤊ 1⤋