if matter can be converted to energy - how is energy converted to matter?
114596
Particle physicists make this kind of reaction happen every day in laboratories. This accomplished by accelerating ordinary particles up to very high speeds, close to the speed of light, and smashing them into each other. In an interesting collision, the result is a spray of new particles, many of which may be heavier than the original pair that collided. The energy of motion of the orignal particles has contributed to creating new ones. Some of these new particles are very interesting and exotic! Most only live for a short time before decaying into more ordinary stuff. \n\nIt is in this way that scientists have found out what kinds of particles exist. The world is made up of stable particles, and we only know about the unstable ones because we have been able to create them in the laboratory out of the energy in the collisions. \n\nThere are rules of course. Whenever a particle is made, certain things have to add up. The energy has to add up, of course. The total electrical charge cannot change, and so when many kinds of particles are made, the same number of antiparticles must also be made (some particles are their own antiparticles so you can make one of these at a time. Photons are examples of this). Antimatter annihilates with corresponding matter particles, and the result is eventually photons, leaving no net new matter.
603134
In all actuality, your question makes no sense.  If you were to take out all the "space" in matter, there would be no matter.  Matter is basically made out of energy and forces interacting with each other.  If you compressed the universe into the size of a refrigerator, you wouldn't have matter anymore.
1110557
Energy comes in many forms, right? Electrical, kinetic, potential, heat, chemical etc. And energy can be converted between these forms right? i.e. when you drop something from a height, potential energy is converted into kinetic energy. Same thing when you release a compressed spring. \n\nThe quality of energy refers to the ease with which you can harness it for use and conversion to other forms. For example the energy stored in a battery is high quality energy, since it's easy to harness for use. The ambient heat energy in a room, on the otherhand, is low quality energy, since it not easy or practical to extract the energy for use.
889920
Yes, if it's converted to energy.  E=mc^2
459656
Who said it is not freely available? Only thing is:-All the energies are governed by the Law of Conservation of Energy. According to this Law, the total available energy is constant, and energy can neither be created, nor destroyed, but one form of energy can be converted to another form. The cost involved in energy is the cost incurred in converting one form of energy into another form.
468574
The conservation of energy rule in physics dictates that energy is always conserved, so it can't be destroyed merely changed to another type. Perhaps an example could be in a crash, the kinetic energy is turned into sound and heat energy primarily, but the energy still exists.
464539
The answer is a\n\nBecause when atom are split or fuse together there masses are always less then the sum of the reactants. the lost mass is transformed into energy. The energy is in the form of the following: Gamma rays, ( very high frequency  x-rays) Beta particles ( a electron shooting away from a atom), or Alpha particles ( a helium nucleus traveling at a very high speed) along with the resulting atoms that are split or fuse; moving at a  higher speed than before. That makes a lot of heat ( which is the definition of heat: a lot of atoms or molecules in motion.) This is in accordance to Einstein famous formula E= MC square. This is what powers our sun and the stars in space by Nuclear fusion, along with the interior of our planet and nuclear reactors and  atomic bombs by nuclear fission.
954004
No, not at all.\n\nProcesses in perfectly stationary nuclei turn mass into energy. For instance, the energy an emitted alpha particle has in alpha decay from a staionary nucleus is reflected by a tiny fall in mass of the nucleus.\n\nConversely, as you accelerate a particle towards the speed of light, more and more of the energy you give to the particle gets converted to mass. In fact, you can never get the particle to the speed of light - its mass will go to infinity first. This is quite measurable in a particle accelerator.
526499
Well, if you get something with the second to lowest potential energy in the world, that energy can go to the lowest potential energy thing in the world and that's it.  Otherthan that, no.  And there's nothing inherent in the material, unless you're talking about chemical reactions, in which case, I just don't know what those two things are.  I hope that's clear.
967629
It is theoretically possible to make anything a gas (including that).  It would take way too much energy to do so though.
273527
No one knows exactly.  It's interchangeable with matter, but no one knows exactly what matter is either.  We can describe properties of matter and energy with reference to each other, but we can't really objectively understand what they are.
472392
"Matter can be neither created or destroyed" is an old saw from pre-Einstein physics.  Matter is continually being transformed into energy in every star in the sky in accordance with E = mc^2, so in that sense, there is certainly less matter in the universe now than when I started typing.  However, (I think) the equation is reversible, so the energy can be transformed back into matter, so maybe the answer is there has always been a constant amount of matter/energy in the universe.
992623
By the law of conservation of energy, you cannot create or destroy energy, only change it from one form into another.\n\nDark or not, energy is energy. You cannot create it.\n\nAt the moment, dark energy and dark matter are theories which scientists have come up with to explain the "missing matter" in the universe.\n\nThere has been a dark matter galaxy "found" which supports this theory.
99802
new matter is not created to make a baby, but is is possible to make new matter.  Einstein showed the matter energy equivalance where E=mc^2.  This means that if you have alot of energy (and I mean a whole lot), you can make a little mass. An example of this would be a very high energy photon ( light ray) which can spontaneously give up some of its energy to create a particle and an anti- particle (or create new mass).\n\nIt is even "easier" to destroy mass.  This occurs in the sun all the time and is the process that releases so much energy.
644089
You may be familiar with two laws that are based on experimental results: \n\nLaw of Conservation of Matter states that the mass of a chemically reacting system remains constant. \n\nLaw of Conservation of Energy (also known as the first law of thermodynamics) states that energy may be transformed from one form into another, but it cannot be created or destroyed. Consequently, the total amount of energy in the universe never changes. \n\nHowever, these laws are in fact identical¼\nMatter and energy are interconvertible. The equivalence of mass and energy escaped our attention for only one reason: The change in mass accompanying the emission or absorption of heat in non-nuclear reactions is so small that it is undetectable. \n\nIn any exothermic reaction, matter is converted into energy; conversely, in any endothermic reaction, the energy absorbed is converted into matter. \n\nWe have not been educated to express energy in mass units. We therefore use a conversion factor to change the mass unit (kg) to the energy unit (J). \n\nThe interconvertibility of matter and energy was predicted by Albert Einstein in 1905. It is described by the equation: \n\nDE = Dmc2\n\nwhere DE is the energy change in joules when Dm, the quantity of matter converted, is in kilograms, and the constant c, the speed of light, is in ms-1 (2.998 x 108 ms-1). The square of the speed of light is used as the conversion factor between quantities that were assumed to be dissimilar\n\n\nFor more info follow the link below
114503
Law of conservation of Mass is exactly what prevents something being permenantly destroyed or created from nothing. You can't destroy Matter and you can't create Energy from nothing, Everything that exists has existed since the begining of the universe. It is possible to turn matter into energy, as shown when burning fossil fuels or making an atomic bomb
635609
E=MC2 describes the potential energy in all matter. Since C is the speed of light, and C squared is a HUGE number, there is lots of potential energy stored in all matter.\n\nThere isn't really a practical application unless you're building an atom bomb or a time machine.