Physical basic quantities are the foundation of all physical measurements. They are used to describe and measure the physical world in a quantitative way. The seven physical basic quantities are defined in terms of specific standards and are fundamental to the International System of Units (SI).
Some examples of physical quantities are speed, force, acceleration, energy, pressure, voltage, electric charge, volume, electric charge, volume, density and frequency.
Table of Contents
Examples of Physical Quantities
| No. | No. Physical Quantity | Definition | SI Unit | Why is it a Physical Quantity? |
| 1 | Length | A measure of distance between two points | meter | Length is a physical quantity because it is a fundamental property of space and is used to describe the size and shape of objects. |
| 2 | Mass | A measure of the amount of matter in an object | kilogram | Mass is a physical quantity because it describes the amount of matter in an object, which affects its behavior under various conditions such as acceleration, gravity, and force. |
| 3 | Time | A measure of the duration between two events | second | Time is a physical quantity because it is a fundamental property of the universe that is used to describe the sequence and duration of events, and is a key component of many physical equations and laws. |
| 4 | Temperature | A measure of the hotness or coldness of an object | Kelvin | Temperature is a physical quantity because it is a fundamental property of matter and is used to describe the thermal state of a system, which affects many other physical properties such as pressure, volume, and conductivity. |
| 5 | Electric current | A measure of the flow of electric charge | Ampere | Mass is a physical quantity because it describes the amount of matter in an object, which affects its behaviour under various conditions such as acceleration, gravity, and force. |
| 6 | Amount of substance | A measure of the number of particles in a substance | mole | Electric current is a physical quantity because it is a fundamental property of electric circuits and is used to describe the behaviour of charges and their interactions with electromagnetic fields. |
| 7 | Luminous intensity | A measure of the brightness of light | Candela | Luminous intensity is a physical quantity because it describes the perceived brightness of light, which is an important property of many practical applications such as lighting, photography, and visual displays. It is also related to the physical properties of light such as intensity, wavelength, and frequency. |
Difference between Physical and Non-Physical Quantities
| Physical Quantities | Non-Physical Quantities | |
| Definition | Measurable or observable quantities associated with physical properties of matter or energy | Abstract concepts that cannot be directly measured or observed |
| Examples | Length, mass, time, temperature, speed, energy | Potential energy, electric field, gravitational force |
| Measurement | Measured using instruments or devices designed to detect and quantify physical properties | Often expressed mathematically or using models based on physical principles |
More Links
Kinematic Equations| Sample Problems and Solutions
Third Law of Motion in Daily Life: Examples
Linear Motion or Rectilinear Motion| Daily Life Examples
Linear Acceleration
Mass vs Weight| Difference and Solved Problems
PhD Student at University College Dublin and Author at What's Insight
PhD Student who loves to write about science, technology and more. Studying at the University College in Dublin. Hope you enjoy my content.
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