Examples of energy converted to matter ?

Question

It's easy to think of examples of matter converted to energy (combustion, nuclear energy, etc.) but what examples are there of the reverse process?

Answer 1

You ask for "examples of energy converted to matter". So far, previous responses given three examples, which are accurate examples of energy converted to mass: smelting metal, creating positrons, and tossing a ball in the air.

Here are four more examples: two that happen commonly on Earth, and two that happen in stars and supernovae explosions.

(1) Compressing a spring.

"Whenever energy is added to a system, the system gains mass. A spring's mass increases whenever it is put into compression or tension. Its added mass arises from the added potential energy stored within it, which is bound in the stretched chemical (electron) bonds linking the atoms within the spring."

(2) Boiling Water

"Raising the temperature of an object (increasing its heat energy) increases its mass. If the temperature of the platinum/iridium “international prototype” of the kilogram — the world’s primary mass standard — is allowed to change by 1 °C, its mass will change by 1.5 picograms (1 pg = 1 × 10–12 g). Note that no net mass or energy is created or lost in any of these scenarios. Mass/energy simply moves from one place to another."

These first two are examples of the transfer of energy and mass in accordance with the principle of mass–energy conservation.

Our next two examples complement your example of the conversion of mass to energy by fission:

(3) Nuclear Fission of Light Elements

The fission of two nuclei heavier than iron or nickel generally absorbs energy and thus converts energy to mass, while the fission of nuclei lighter than iron or nickel releases energy. In nuclear fusion, the reverse obtains.

(4) Nuclear Fusion of Heavy Elements

"Fusion reactions power the stars and produce all but the lightest elements in a process called nucleosynthesis. Whereas the fusion of light elements in the stars releases energy, production of the heaviest elements absorbs energy, so it can only take place in the extremely high-energy conditions of supernova explosions."

Please re-post if you would like additional information about specific examples of the conversion of mass and energy.

Hope this helps.

Answer 2

Examples Of Energy

Answer 3

If you are talking about burning coal or wood or gas to get energy in the form of fire or movement, the answer is no: The laws of thermodynamics tell us that the energy is never lost, it is transformed into a less profitable kind of, that is stated by the the second principle of thermodynamics i.e heat can be used to move a locomotive, but when the steam escapes you get a higher volume of gas at a lesser temperature but although the total heath remains the same you can not use that energy anymore. The second part of your question. The energy can be transformed into matter in great cataclysmic reactions within the stars. In the nuclear laboratories like the Centre Europeane des Recherche Nucleaire (C.E.R.N.) in Geneve (Schweitz), particles are accelerated to speeds close to that of light and allowed them to collide with each other having gotten a higher amount of matter than that before the collision.

Answer 4

Energy is an abstract process defined as a phnomenon of the Universe. Its a process not a quantity.
Mass is a Structure which makes up the Universe.
Mass is structured by smaller structures such as atoms. The process of structuring an atom is called energy.
Hence every atomic structure has a mass content as the result of An Energy process.
If Energy relates to the motion of all matter in the Universe, then energy had a begining at the time of Creation.

Answer 5

Strictly speaking, you don't even have to get anywhere near the speed of light. Anytime you increase the kinetic energy of an object, even if it's relatively slow, like tossing a ball, you increase its mass, according to the theory of relativity. The increase in mass is found by rearranging E = mc^2 to m = E/c^2, where E is the kinetic energy. The increase is miniscule, but it's there.

Answer 6

All those are examples of something called exothermic reactions, which means that in the process of the reaction, energy is released.
The opposite of this is called endothermic reactions, and what this means is that when you put some things together, they will not make a reaction without some energy being added as well. For example, you need to add heat (which is a form of energy) to smelt different metals together in order to make alloys like steel.
There aren't too many examples of useful endothermic reactions.

Answer 7

In an empty region of space, energy can be borrowed from the universe and electron positron pair can be created. The pair will then come together and annihilate releasing energy in the form of 2 gamma ray photons, repaying their "energy debt." The ammount of time the pair can exist depends upon the uncertainty principle of time and energy:
Uncertainty of energy x duration of time= on the order of h/2
Weird stuff!

Answer 8

Particle - Antiparticle pair production.

In this high energy physics reaction, two gamma ray photons (energy in the form of high frequency electromagnetic radiation) can combine, forming two particles, an electron - positron pair (the positron is the antimatter equivalent of the electron.)

Answer 9

Apply work done on object until its speed is close to speed of light.When it's speed is approaches to speed of light,no matter how great energy u apply to it will never exceed to speed of light.Now the mass of object will keep increasing since that the KE(½mv²) becomes constant.

Answer 10

Check this link.