Category
page 1Scalar physical quantities
time
Time is the continuous progression of existence that occurs in an apparently irreversible succession from the past, through the present, and into the future. Time dictates all forms of action, age, and causality, being a component quantity of various measurements used to sequence events, to compare the duration of events (or the intervals between them), and to quantify rates of change of quantities in material reality or in the conscious experience. Time is often referred to as a fourth dimension, along with three spatial dimensions.

energy
Energy () is the quantitative property that is transferred to a body or to a physical system, recognizable in the capacity to do work and in the form of heat and light. Energy is a conserved quantity—the law of conservation of energy states that energy can be converted in form, but not created or destroyed. The unit of measurement for energy in the International System of Units (SI) is the joule (J).
work
energy transferred to an object via the application of force on it through a displacement
capacitance
Capacitance is the ability of an object to store electric charge. It is measured by the change in charge in response to a difference in electric potential, expressed as the ratio of those quantities. Commonly recognized are two closely related notions of capacitance: self capacitance and mutual capacitance. An object that can be electrically charged exhibits self capacitance, for which the electric potential is measured between the object and ground. Mutual capacitance is measured between two components, and is particularly important in the operation of the capacitor, an elementary linear elec
luminous intensity
luminous flux per solid angle in a given direction
scalar field
assignment of numbers to points in space
wavenumber
thumb|Diagram illustrating the relationship between the wavenumber and the other properties of harmonic waves.
scalar quantity
quantity represented by a scalar: quantity having no direction
gravitational potential
scalar potential that describes a gravitational field
thermodynamic beta
reciprocal product of temperature with the Boltzmann constant, frequently used in exponentials in physics and chemistry and relating statistical mechanics to information theory
scalar potential
concept in vector analysis and physics
volumetric number density
count per volume