Learn Measurement Systems

Electric charge is a fundamental property of matter that causes it to experience a force when placed in an electromagnetic field. It is a conserved property of subatomic particles.

Torque is a measure of the force that can cause an object to rotate about an axis. It is a vector quantity, meaning it has both magnitude and direction.

Digital memory refers to computer components and recording media that retain digital data used for computing for some interval of time.

Luminous flux measures the total quantity of visible light emitted by a source per unit time, weighted according to the human eye's sensitivity to different wavelengths.

Sound is a vibration that propagates as an acoustic wave through a transmission medium such as a gas, liquid, or solid. In human physiology and psychology, sound is the reception of such waves and their perception by the brain.

Electric current is the flow of electric charge through a conductor. It is one of the most fundamental concepts in electricity and electronics, essential for powering modern technology.

Rotational speed refers to the number of complete turns a rotating object makes per unit of time. It is a fundamental concept in mechanical and electrical engineering.

The rate of an enzyme-catalyzed reaction is a measure of how quickly a substrate is converted to product by an enzyme. This is fundamental to biochemistry and molecular biology.

Flow rate measures the volume of fluid that passes through a given surface per unit time. It is crucial in fluid dynamics, engineering, and various industrial applications.

Piece count is a fundamental unit of quantity used in various fields such as manufacturing, inventory management, and commerce. It represents discrete, countable items.

Electric potential, also called voltage, is the amount of electric potential energy per unit charge at a point in an electric field. It is a scalar quantity measured in volts.

An angle is the figure formed by two rays, called the sides of the angle, sharing a common endpoint, called the vertex. Angles are fundamental in geometry, physics, and engineering.

Electric charge is a fundamental property of matter that causes it to experience a force when placed in an electromagnetic field. It is a conserved property of subatomic particles.

Electromagnetic quantities describe various aspects of electric and magnetic fields and their interactions with matter. These are fundamental to understanding electricity, magnetism, and light.

Flow rate measures the volume of fluid that passes through a given surface per unit time. It is crucial in fluid dynamics, engineering, and various industrial applications.

Length is the measure of distance between two points. It is one of the most fundamental measurements in science and daily life, forming the basis for geometry, physics, and countless practical applications.

Mass is the measure of the amount of matter in a physical body. Unlike weight, which is the force of gravity on an object, mass is constant regardless of location. It is a fundamental property of matter.

Temperature is a physical quantity that expresses hot and cold. It is the manifestation of thermal energy present in all matter, which is the source of the occurrence of heat, a flow of energy, when a body is in contact with another that is colder or hotter.

Area is the measure of the extent of a surface or shape in a two-dimensional plane. It quantifies how much space is enclosed within a boundary and is fundamental to geometry, construction, agriculture, and countless practical applications.

Volume is the measure of the amount of three-dimensional space occupied by an object or substance. It is essential for understanding capacity, displacement, and the quantity of materials in engineering, science, and everyday life.

Speed is the rate at which an object covers distance over time, while velocity includes both speed and direction. These measurements are fundamental to transportation, physics, and engineering applications.

Digital memory refers to computer components and recording media that retain digital data used for computing for some interval of time.

Time is the indefinite continued progress of existence and events in the past, present, and future. It is one of the fundamental quantities in physics and essential for coordinating activities in modern society.

Pressure is the force applied perpendicular to the surface of an object per unit area. It is fundamental to fluid mechanics, weather systems, engineering applications, and many industrial processes.

Power is the rate of energy transfer or the amount of energy converted per unit time. It measures how quickly work is done or energy is consumed, making it essential for electrical systems, mechanical devices, and energy efficiency.

Energy is the capacity to do work or produce heat. It exists in various forms including kinetic, potential, thermal, electrical, chemical, and nuclear energy. Energy cannot be created or destroyed, only converted from one form to another.

Electric potential, also called voltage, is the amount of electric potential energy per unit charge at a point in an electric field. It is a scalar quantity measured in volts.

Electric current is the flow of electric charge through a conductor. It is one of the most fundamental concepts in electricity and electronics, essential for powering modern technology.

Frequency is the number of occurrences of a repeating event per unit of time. It is a fundamental concept in physics, engineering, and many other fields, measuring how often something happens in a given period.

Illuminance is the total luminous flux incident on a surface, per unit area. It is a measure of how much the incident light illuminates the surface, wavelength-weighted by the luminosity function to correlate with human brightness perception.