0
Here is as close as you can come to a sacred rule in science: Energy is Neither Created Nor Destroyed. At most, it can be converted from one form to another.
When light energy (let's say sunshine), which is made of photons, falls on matter (let's say a brick), the matter is heated and it reemits this heat, also in the form of photons, but of longer wavelength that those of the light. If we pile on the heat, as by putting the brick in a kiln, eventually it would begin to glow with light energy, which is to say with photons of shorter wavelength.
As we all know, E=MC2, or Matter is really just a REALLY concentrated form of Energy, which is actually moving even if to our senses it is still and cold. When things are burned or involved in nuclear reactions, the universe loses some matter and gains some energy, but since they're both the same thing, the Rule still holds: neither created nor destroyed.
Wiki User
∙ 10y ago
Add your answer:
Earn +20 pts
When light hits an object some of the light is absorbed by what?
matter
Three different ways light interacts with matter?
Keeping it simple, the three ways electromagnetic (EM) waves interact with matter include reflection, refractionand absorption.In reflection, the EM energy "bounces off" what it strikes. In refraction, the EM energy enters the material, but changes direction when it does. In absorption, the energy of the EM wave is "taken up" by the matter, and the energy is distributed within the atomic structure into which it entered.
3 things that can happen to light when it hits matter it can be?
It refracts, reflects, and absorbs light.
What happens after the light is absorbed by a radiometer?
The light energy is absorbed and dispersed after it hits the radiometer.
Where do electromagnetic waves tranfer energy?
From one place to another. From the source of the radiation to whatever ultimately absorbs it. Example: Using your flashlight to see a rock on the ground at night. -- The energy begins as chemical energy inside the batteries in the flashlight. -- You switch the flashlight on. Electric current flows through the light bulb or LEDs. Most of the energy in the current changes to light energy and heat energy. The light energy pours out of the front of the flashlight. -- All of the air that the light passes through absorbs some of its energy. -- A lot of the light misses the rock, and hits the ground. The ground absorbs most of the energy in the light that hits it. Not much of the light energy that hits the ground bounces off of it. That's why the ground looks dark to you. -- Some of the light goes straight to the rock and hits it. The rock absorbs most of the energy in the light that hits it. Not much of the light energy that hits the rock bounces off of it. That's why the rock looks dark to you. -- Any light energy that hits the ground or the rock, bounces off of them, and hits your shirt, is absorbed by your shirt. -- Any light energy that hits the ground or the rock, bounces off of them, and happens to go through the dark circle in the middle of your eye, is absorbed in the cells on the back surface of your eye. That energy generates a little bit of chemical action, which generates a little bit of electric current, which flows through the optic nerve, to your brain, whereupon your brain generates the message "Hey! There's a rock right there, on the ground!"
When light hits matter does it stop?
no,actually light posess both wave nature and particle nature,when it hits on matters it may reflect,absorbed,rtc.depents on matter,lets teke example of metal sheet,when light hits it the energy of photon contents will transfered to it,so the electrons in the surface will emitted with a kinetic energy depents on energy tranfered,its example is x-ray,when laser beams hits on metal surface x-rays are produced the colour are produced by the absorptiond reflection property,ie,if a particle reflect all light it will be white in color,if it absorbs colour it will looks like black,so light when hits matter its getting absorbed or reflected,it cannot be stopped!
When light hits an object some of the light is absorbed by what?
matter
Is light mechanical energy?
Light is not mechanical energy but it can be transformed into mechanical energy. Light creates an impact as it hits a surface.
Is your reflection in the mirror made of matter?
No. It's caused by the material in the mirror reflecting the light that hits the mirror back at you. So you might say a reflection is made of light. Actually this answer depends on defining matter. By Einstein's modern definition of matter, which includes photons (due to its type of energy) It is matter. SO IT IS MATTER.
Three different ways light interacts with matter?
Keeping it simple, the three ways electromagnetic (EM) waves interact with matter include reflection, refractionand absorption.In reflection, the EM energy "bounces off" what it strikes. In refraction, the EM energy enters the material, but changes direction when it does. In absorption, the energy of the EM wave is "taken up" by the matter, and the energy is distributed within the atomic structure into which it entered.
3 things that can happen to light when it hits matter it can be?
It refracts, reflects, and absorbs light.
Where do electromagnetic waves tranfer energy?
From one place to another. From the source of the radiation to whatever ultimately absorbs it. Example: Using your flashlight to see a rock on the ground at night. -- The energy begins as chemical energy inside the batteries in the flashlight. -- You switch the flashlight on. Electric current flows through the light bulb or LEDs. Most of the energy in the current changes to light energy and heat energy. The light energy pours out of the front of the flashlight. -- All of the air that the light passes through absorbs some of its energy. -- A lot of the light misses the rock, and hits the ground. The ground absorbs most of the energy in the light that hits it. Not much of the light energy that hits the ground bounces off of it. That's why the ground looks dark to you. -- Some of the light goes straight to the rock and hits it. The rock absorbs most of the energy in the light that hits it. Not much of the light energy that hits the rock bounces off of it. That's why the rock looks dark to you. -- Any light energy that hits the ground or the rock, bounces off of them, and hits your shirt, is absorbed by your shirt. -- Any light energy that hits the ground or the rock, bounces off of them, and happens to go through the dark circle in the middle of your eye, is absorbed in the cells on the back surface of your eye. That energy generates a little bit of chemical action, which generates a little bit of electric current, which flows through the optic nerve, to your brain, whereupon your brain generates the message "Hey! There's a rock right there, on the ground!"
What happens after the light is absorbed by a radiometer?
The light energy is absorbed and dispersed after it hits the radiometer.
Shadows are formed because light travels in?
Shadows are formed because when light hits an object, it does not pass through it. Light going around the edge of the object fills in the light void a bit, but it does not make up for the missing light.
What form of energy does light change when it hits a road?
When visible light hits the road some of it turns into heat (infrared) and the other gets reflected back as light.
When light hits an object most of the light is absorbed by what?
simple when a light strikes a surface the amount of energy that refactes that surface is generally aborbed by the object(material) which it aabsorbs the energy from light.
After light hits photosystem I its energy is used to produce what molecule?
NADPH
