Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Invariant_mass> ?p ?o }
- Invariant_mass abstract "The invariant mass, rest mass, intrinsic mass, proper mass, or in the case of bound systems simply mass, is a characteristic of the total energy and momentum of an object or a system of objects that is the same in all frames of reference related by Lorentz transformations. If a center of momentum frame exists for the system, then the invariant mass of a system is simply the total energy divided by the speed of light squared. In other reference frames, the energy of the system increases, but system momentum is subtracted from this, so that the invariant mass remains unchanged.Systems whose four-momentum is a null vector (for example a single photon or many photons moving in exactly the same direction) have zero invariant mass, and are referred to as massless. A physical object or particle moving faster than the speed of light would have space-like four-momenta (such as the hypothesized tachyon), and these do not appear to exist. Any time-like four-momentum possesses a reference frame where the momentum (3-dimensional) is zero, which is a center of momentum frame. In this case, invariant mass is positive and is referred to as the rest mass.If objects within a system are in relative motion, then the invariant mass of the whole system will differ from the sum of the objects' rest masses. This is also equal to the total energy of the system divided by c2. See mass–energy equivalence for a discussion of definitions of mass. Since the mass of systems must be measured with a weight or mass scale in a center of momentum frame in which the entire system has zero momentum, such a scale always measures the system's invariant mass. For example, a scale would measure the kinetic energy of the molecules in a bottle of gas to be part of invariant mass of the bottle, and thus also its rest mass. The same is true for massless particles in such system, which add invariant mass and also rest mass to systems, according to their energy.For an isolated massive system, the center of mass of the system moves in a straight line with a steady sub-luminal velocity (with a velocity depending on the reference frame used to view it). Thus, an observer can always be placed to move along with it. In this frame, which is the center of momentum frame, the total momentum is zero, and the system as a whole may be thought of as being \"at rest\" if it is a bound system (like a bottle of gas). In this frame, which exists under these assumptions, the invariant mass of the system is equal to the total system energy (in the zero-momentum frame) divided by c2. This total energy in the center of momentum frame, is the minimum energy which the system may be observed to have, when seen by various observers from various inertial frames.Note that for reasons above, such a rest frame does not exist for single photons, or rays of light moving in one direction. When two or more photons move in different directions, however, a center of mass frame (or \"rest frame\" if the system is bound) exists. Thus, the mass of a system of several photons moving in different directions is positive, which means that an invariant mass exists for this system even though it does not exist for each photon.".
- Invariant_mass thumbnail Rest_mass_0_and_1.svg?width=300.
- Invariant_mass wikiPageID "162321".
- Invariant_mass wikiPageLength "13016".
- Invariant_mass wikiPageOutDegree "50".
- Invariant_mass wikiPageRevisionID "706354702".
- Invariant_mass wikiPageWikiLink 0_(number).
- Invariant_mass wikiPageWikiLink Category:Concepts_in_physics.
- Invariant_mass wikiPageWikiLink Category:Energy_(physics).
- Invariant_mass wikiPageWikiLink Category:Mass.
- Invariant_mass wikiPageWikiLink Category:Theory_of_relativity.
- Invariant_mass wikiPageWikiLink Center-of-momentum_frame.
- Invariant_mass wikiPageWikiLink Dirac_equation.
- Invariant_mass wikiPageWikiLink Elementary_particle.
- Invariant_mass wikiPageWikiLink Energy.
- Invariant_mass wikiPageWikiLink Energy–momentum_relation.
- Invariant_mass wikiPageWikiLink Four-momentum.
- Invariant_mass wikiPageWikiLink Four-vector.
- Invariant_mass wikiPageWikiLink Frame_of_reference.
- Invariant_mass wikiPageWikiLink Fundamental_interaction.
- Invariant_mass wikiPageWikiLink Invariant_(physics).
- Invariant_mass wikiPageWikiLink Lorentz_transformation.
- Invariant_mass wikiPageWikiLink Mass.
- Invariant_mass wikiPageWikiLink Mass_in_special_relativity.
- Invariant_mass wikiPageWikiLink Mass–energy_equivalence.
- Invariant_mass wikiPageWikiLink Minkowski_space.
- Invariant_mass wikiPageWikiLink Missing_energy.
- Invariant_mass wikiPageWikiLink Momentum.
- Invariant_mass wikiPageWikiLink Natural_units.
- Invariant_mass wikiPageWikiLink Negative_number.
- Invariant_mass wikiPageWikiLink Particle_physics.
- Invariant_mass wikiPageWikiLink Physical_body.
- Invariant_mass wikiPageWikiLink Physical_system.
- Invariant_mass wikiPageWikiLink Pseudo-Euclidean_space.
- Invariant_mass wikiPageWikiLink Pseudorapidity.
- Invariant_mass wikiPageWikiLink Special_relativity.
- Invariant_mass wikiPageWikiLink Speed_of_light.
- Invariant_mass wikiPageWikiLink Tachyon.
- Invariant_mass wikiPageWikiLink Transverse_mass.
- Invariant_mass wikiPageWikiLink Velocity.
- Invariant_mass wikiPageWikiLink File:Rest_mass_0_and_1.svg.
- Invariant_mass wikiPageWikiLinkText "Invariant mass".
- Invariant_mass wikiPageWikiLinkText "Invariant_mass#Rest_energy".
- Invariant_mass wikiPageWikiLinkText "Momentum-energy invariance".
- Invariant_mass wikiPageWikiLinkText "Proper mass".
- Invariant_mass wikiPageWikiLinkText "Rest mass".
- Invariant_mass wikiPageWikiLinkText "heavier".
- Invariant_mass wikiPageWikiLinkText "invariant mass (or rest mass)".
- Invariant_mass wikiPageWikiLinkText "invariant mass".
- Invariant_mass wikiPageWikiLinkText "mass of an atom at rest".
- Invariant_mass wikiPageWikiLinkText "mass".
- Invariant_mass wikiPageWikiLinkText "massive".
- Invariant_mass wikiPageWikiLinkText "proper mass".
- Invariant_mass wikiPageWikiLinkText "rest (intrinsic) mass".
- Invariant_mass wikiPageWikiLinkText "rest (or ''invariant'') mass".
- Invariant_mass wikiPageWikiLinkText "rest mass".
- Invariant_mass wikiPageWikiLinkText "rest masses".
- Invariant_mass wikiPageWikiLinkText "rest".
- Invariant_mass wikiPageWikiLinkText "special relativity".
- Invariant_mass wikiPageUsesTemplate Template:Cite_book.
- Invariant_mass wikiPageUsesTemplate Template:Clarify.
- Invariant_mass wikiPageUsesTemplate Template:Cleanup_rewrite.
- Invariant_mass wikiPageUsesTemplate Template:Math.
- Invariant_mass wikiPageUsesTemplate Template:Mvar.
- Invariant_mass wikiPageUsesTemplate Template:Redirect.
- Invariant_mass wikiPageUsesTemplate Template:Refimprove.
- Invariant_mass wikiPageUsesTemplate Template:Reflist.
- Invariant_mass subject Category:Concepts_in_physics.
- Invariant_mass subject Category:Energy_(physics).
- Invariant_mass subject Category:Mass.
- Invariant_mass subject Category:Theory_of_relativity.
- Invariant_mass hypernym Characteristic.
- Invariant_mass type Food.
- Invariant_mass type Concept.
- Invariant_mass type Mechanic.
- Invariant_mass type Physic.
- Invariant_mass type Quantity.
- Invariant_mass comment "The invariant mass, rest mass, intrinsic mass, proper mass, or in the case of bound systems simply mass, is a characteristic of the total energy and momentum of an object or a system of objects that is the same in all frames of reference related by Lorentz transformations. If a center of momentum frame exists for the system, then the invariant mass of a system is simply the total energy divided by the speed of light squared.".
- Invariant_mass label "Invariant mass".
- Invariant_mass sameAs Q1097654.
- Invariant_mass sameAs Rusmassa.
- Invariant_mass sameAs كتلة_ساكنة.
- Invariant_mass sameAs স্থির_ভর.
- Invariant_mass sameAs Massa_en_repòs.
- Invariant_mass sameAs Klidová_hmotnost.
- Invariant_mass sameAs Hvilemasse.
- Invariant_mass sameAs Schwerpunktsenergie.
- Invariant_mass sameAs Seisumass.
- Invariant_mass sameAs جرم_نامتغیر.
- Invariant_mass sameAs Lepomassa.
- Invariant_mass sameAs Masse_au_repos.
- Invariant_mass sameAs Masa_en_repouso.
- Invariant_mass sameAs מסת_מנוחה.
- Invariant_mass sameAs निश्चर_द्रव्यमान.
- Invariant_mass sameAs Invariáns_tömeg.
- Invariant_mass sameAs Energi_diam.
- Invariant_mass sameAs Hvíldarmassi.
- Invariant_mass sameAs Massa_a_riposo.
- Invariant_mass sameAs 不変質量.
- Invariant_mass sameAs უძრაობის_მასა.