Psychology Dictionary of Arguments

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Quantities, physics: Quantities in physics are measurable properties of objects, processes or states. See also Scales, Proportions, Change, Motion, Processes, Flux, Space, Time, Spacetime, Metrisability, Measurements.
Annotation: The above characterizations of concepts are neither definitions nor exhausting presentations of problems related to them. Instead, they are intended to give a short introduction to the contributions below. – Lexicon of Arguments.

Author Concept Summary/Quotes Sources

J. Perdijon on Quantities (Physics) - Dictionary of Arguments

Perd 72
Quantities/Measure/Perdijon: size is connected to the property of quality, whereas the intensity is an expression of the amount, the quantity.
Size: quality
Value: Quantity
Secondary quantities: not all physical quantities can be measured directly - E.g. interferometer: here, primary quantities have to be translated into secondary quantities: the invisible wavelengths into the movement of a pointer.
Mass: complex concept, needs experiments and interpretation.

Perd 73
Quantities/Measure/Perdijon: the value of most can be given by a simple number. But not vectors and tensors. However, they can be represented in the form of several scalar variables.
Measurable quantities: Example: speed in one point: three components
E.g. electric current: intensity and polarity
E.g. distribution. Number of individuals in different classes

e.g. Sum of values: for most quantities no problem:
E.g. two lengths or two masses can be added: this additive commutative qunantity is called measurable quantities. These include in the wider sense also not summable sizes but whose sum can be defined by a law of physics. E.g. resistance can be measured, even if it is not summable.
Contrary to this:
Relative quantities: with them one can only determine whether they are greater than or equal to others
e.g. temperature,
e.g. hardness

X 74
These quantities form an ordered set, they can be characterized.
E.g. a point of time can be marked, a period of time, however, is measurable
marked quantity: in extreme cases, the scale is reduced for them in such a way that there can only be expressed yes or no. We then speak of attributes
E.g. Fit - size is usually defined at all points of a body.
It is an average size that can be given as a common value for the entire volume.

Perd 74
Measure/quantities/Perdijon: measurable quantities: by numbers (Def: summable!)
Relative quantities: only comparison: E.g. temperature, hardness (not summable)
Extreme values: E.g. length, diameter: cannot be used arbitrarily, but at the outermost points.
, >Quantities(Physics), >Qualities, >Measuring, >Physics.

Explanation of symbols: Roman numerals indicate the source, arabic numerals indicate the page number. The corresponding books are indicated on the right hand side. ((s)…): Comment by the sender of the contribution. Translations: Dictionary of Arguments
The note [Concept/Author], [Author1]Vs[Author2] or [Author]Vs[term] resp. "problem:"/"solution:", "old:"/"new:" and "thesis:" is an addition from the Dictionary of Arguments. If a German edition is specified, the page numbers refer to this edition.

Perd I
Jean Perdijon
La mesure - Histoire, science et technique, Paris 2012
German Edition:
Das Mass in Wissenschaft und Philosophie Bergisch Gladbach 2001

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