Physical Body

Information about Physical Body

In physics, a physical body (sometimes called simply a body or even an object) is a collection of masses, taken to be one. For example, a cricket ball can be considered an object but the ball also consists of many particles (pieces of matter).

Specifically, a physical body is an object which can be described by the theories of classical mechanics, or quantum mechanics, and experimented upon with physical instruments. This includes the determination of position, and in some cases the orientation in space, as well as means to change these, by exerting forces.

For instance, the force of gravity will accelerate a body if it is not supported, thus causing a change of its position (that is, it falls freely). However, it should be noted that it is not necessary for there to be forces present for an object position to change - only the rate of change of the object's position, that is, its velocity, will change under the influence of forces.

A human's, animal's or vegetable's physical body is made up of organs and tissues and is a part of the total living being which in the human being may also include a psychological or spiritual component. However, whether or not a human being includes a spiritual component is entirely up to philosophical debate and faith.

Mass is a fundamental concept in physics, roughly corresponding to the intuitive idea of "how much matter there is in an object". Mass is a central concept of classical mechanics and related subjects, and there are several definitions of mass within the framework of relativistic
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matter is commonly defined as the substance of which physical objects are composed, not counting the contribution of various energy or force-fields, which are not usually considered to be matter per se (though they may contribute to the mass of objects).
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The word theory has a number of distinct meanings in different fields of knowledge, depending on their methodologies and the context of discussion.

In common usage, people often use the word theory to signify a conjecture, an opinion, or a speculation.
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Classical mechanics (commonly confused with Newtonian mechanics, which is a subfield thereof) is used for describing the motion of macroscopic objects, from projectiles to parts of machinery, as well as astronomical objects, such as spacecraft, planets, stars, and galaxies.
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quantum mechanics is the study of the relationship between energy quanta (radiation) and matter, in particular that between valence shell electrons and photons. Quantum mechanics is a fundamental branch of physics with wide applications in both experimental and theoretical physics.
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In the scientific method, an experiment (Latin: ex- periri, "of (or from) trying") is a set of observations performed in the context of solving a particular problem or question, to support or falsify a hypothesis or research concerning phenomena.
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Measuring instruments are the means by which this translation is made. All measuring instruments are subject to varying degrees of instrument error.

Physicists use a vast range of instruments to perform their measurements.
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Position may refer to:

A location in a coordinate system, usually in two or more dimensions; the science of position and its generalizations is topology

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Orientation may refer to:

Orientation (mental), a function of the mind
Orientation (physical), determining ones location in ones surroundings
Orientation (film), a 1996 short film produced by the Church of Scientology

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The term SPACE (capitalized) can refer to:

, a Canadian science-fiction channel
The Society for Promotion of Alternative Computing and Employment
DSPACE, a term in computational complexity theory

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In physics, force is an action or agency that causes a body of mass m to accelerate. It may be experienced as a lift, a push, or a pull. The acceleration of the body is proportional to the vector sum of all forces acting on it (known as net force or resultant force).
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Gravitation is a natural phenomenon by which all objects with mass attract each other. In everyday life, gravitation is most familiar as the agency that endows objects with weight.
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acceleration is defined as the rate of change of velocity, or, equivalently, as the second derivative of position. It is thus a vector quantity with dimension length/time². In SI units, acceleration is measured in metres/second² (m·s^-²).
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Vegetable is a term which generally refers to an edible part of a plant. The definition is traditional rather than scientific and is somewhat arbitrary and subjective. All parts of herbaceous plants eaten as food by humans, whole or in part, are normally considered vegetables.
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organ (Latin: organum, "instrument, tool") is a group of tissues that perform a specific function or group of functions. Usually there is a main tissue and sporadic tissues. The main tissue is the one that is unique for the specific organ.
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Plantae

Chromalveolata

Heterokontophyta

Haptophyta

Cryptophyta

Alveolata

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Psychology (from Greek: Literally "talk about the soul" (from logos)) is both an academic and applied discipline involving the scientific study of mental processes and behavior.
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Spirituality, in a narrow sense, concerns itself with matters of the spirit. The spiritual, involving (as it may) perceived non-physical eternal verities (or even abilities) involving humankind's ultimate nature, often contrasts with the earthly, with the material, or with the
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Philosophy is the discipline concerned with questions of how one should live (ethics); what sorts of things exist and what are their essential natures (metaphysics); what counts as genuine knowledge (epistemology); and what are the correct principles of reasoning (logic).
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rigid body is an idealization of a solid body of finite size in which deformation is neglected. In other words, the distance between any two given points of a rigid body remains constant in time regardless of external forces exerted on it.
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Physical Body

Information about Physical Body

See also