# What is Included in Primary Measurements?

Primary measurements are the most basic units of measurement used in physics and other sciences. They are the fundamental units of measure used to describe the properties of matter and energy. They are also known as basic units, base units, or fundamental units. In this article, we will discuss what primary measurements are and what they consist of.

## Types of Primary Measurements

There are seven primary measurements: Length, Mass, Time, Temperature, Electric Current, Amount of Substance, and Luminous Intensity. Each of these measurements has its own unit of measure, such as meters, kilograms, seconds, degrees Celsius, amperes, moles, and candelas.

### Length

Length is a measure of the distance between two points. It is commonly expressed in meters and is used to measure the distance between two points in space. It is also used to measure the size of objects, such as buildings, cars, and people.

### Mass

Mass is a measure of the amount of matter in an object. It is expressed in kilograms and is used to measure the weight of an object. It is also used to measure the density of a material.

### Time

Time is a measure of the duration of an event or the interval between two events. It is expressed in seconds, minutes, hours, days, and years. It is used to measure the speed of an object or the age of an object.

### Temperature

Temperature is a measure of the amount of heat energy in an object. It is expressed in degrees Celsius or Kelvin and is used to measure the temperature of an object. It is also used to measure the temperature of a gas or liquid.

### Electric Current

Electric current is a measure of the rate of flow of electric charge. It is expressed in amperes and is used to measure the flow of electricity through a conductor. It is also used to measure the amount of current flowing through a circuit.

### Amount of Substance

Amount of substance is a measure of the number of atoms, molecules, or ions in a given volume. It is expressed in moles and is used to measure the amount of a substance. It is also used to measure the concentration of a substance in a solution.

### Luminous Intensity

Luminous intensity is a measure of the amount of visible light emitted by a source. It is expressed in candelas and is used to measure the brightness of a light source. It is also used to measure the intensity of a laser.

These seven primary measurements are the basis for all physical measurements. They provide the foundation for all scientific studies, experiments, and measurements done in the physical sciences. They are also used to measure the properties of matter and energy.