Matter FAQs:

Q: Is matter any substance that has mass and takes up space?

A: Yes, this includes atoms and anything made up of these, but not other energy phenomena or waves such as light or sound.

Q: Is matter made up of atoms?

A: Yes.

Q: Is matter matter of unknown composition that does not emit or reflect enough electromagnetic radiation to be observed directly?

A: Yes, but whose presence can be inferred from gravitational effects on visible matter.

Q: Is matter amenable to mathematical description?

A: Yes, and unlike "secondary" qualities such as color or taste.

Q: Is matter a concept of particle physics?

A: Yes, and which may include dark matter and dark energy but goes further to include any hypothetical material that violates one or more of the properties of known forms of matter.

Q: Is matter itself a physical substance of which systems may be composed?

A: Yes, while mass is not a substance but rather a quantitative property of matter and other substances or systems.

Q: Is matter recognized in science: masses?

A: Yes, and molecules and atoms.

Q: Is matter passive or inert?

A: Yes.

Q: Is matter equally represented?

A: Yes, and the disappearance of antimatter requires an asymmetry in physical laws called CP symmetry violation, which can be obtained from the Standard Model, but at this time the apparent asymmetry of matter and antimatter in the visible universe is one of the great unsolved problems in physics.

Q: Is matter thought to occur during the evolution of heavy stars?

A: Yes.

Q: Was matter seen as made up of electrons?

A: Yes, and protons and neutrons interacting to form atoms.

Q: Is matter in turn made up of interacting subatomic particles—usually a nucleus of protons and neutrons?

A: Yes, and a cloud of orbiting electrons.

Q: Is matter just this—the primary substratum of each thing?

A: Yes, and from which it comes to be without qualification, and which persists in the result.

Q: Is matter intrinsically linked to something being made or composed?

A: Yes.

Q: Is matter the part of the universe that is made of baryons?

A: Yes, This part of the universe does not include dark energy, dark matter, black holes or various forms of degenerate matter, such as compose white dwarf stars and neutron stars.

Q: Is matter not found naturally on Earth, except very briefly and in vanishingly small quantities?

A: Yes, This is because antimatter that came to exist on Earth outside the confines of a suitable physics laboratory would almost instantly meet the ordinary matter that Earth is made of, and be annihilated.

Q: Is matter to pair it with the same amount of antimatter so that their "matterness" cancels out—but in practice there is almost no antimatter generally available in the universe with which to do so?

A: Yes.

Q: Is matter not a fundamental concept because a universal definition of it is elusive?

A: Yes, for example, the elementary constituents of atoms may be point particles, each having no volume individually.

Q: Is matter whatever physics studies and the object of study of physics is matter: there is no independent general definition of matter?

A: Yes, and apart from its fitting into the methodology of measurement and controlled experimentation.

Q: Is matter due to the binding energy of quarks within protons and neutrons?

A: Yes.

Q: Is matter anything that is made of the same things that atoms and molecules are made of?

A: Yes.

Q: Is matter based upon its structure or building blocks?

A: Yes.

Q: Is matter expected to be color superconducting?

A: Yes.

Q: Was matter held to have chemical and electrical properties?

A: Yes.

Q: Is matter also sometimes termed ordinary matter?

A: Yes.

Q: Is matter more subtle than it first appears?

A: Yes.

Q: Is matter atoms?

A: Yes, or that matter is hadrons, or that matter is leptons and quarks depending upon the scale at which one wishes to define matter.

Q: Is matter everything that is composed of quarks and leptons?

A: Yes, or ordinary matter is everything that is composed of any elementary fermions except antiquarks and antileptons.

Q: Is matter non-baryonic in nature?

A: Yes.

Q: Is matter made up of what atoms and molecules are made of?

A: Yes, and meaning anything made of positively charged protons, neutral neutrons, and negatively charged electrons.

Q: Is matter always quark matter?

A: Yes.

Q: Is matter any portion of matter appreciable by the senses?

A: Yes.

Q: Is matter matter that is composed of the antiparticles of those that constitute ordinary matter?

A: Yes.

Q: Is matter a history of the fundamental length scales used to define matter?

A: Yes.

Q: Is matter what underlies a change of substance?

A: Yes.

Q: Is matter not specifically described?

A: Yes, but consists of whatever persists in the change of substance from grass to horse.

Q: Is matter a particular form of quark matter?

A: Yes, and usually thought of as a liquid of up, down, and strange quarks.

Q: Is matter composed entirely of first-generation particles?

A: Yes, and namely the [up] and [down] quarks, plus the electron and its neutrino.