What is Physical Quantity
- A physical quantity is a characteristic or property of an object or system that can be measured and expressed numerically.
- Examples of physical quantities include length, mass, time, and temperature. Each physical quantity has units of measurement, such as meters for length or seconds for time.
- Physical quantities can be combined mathematically to form new quantities, such as velocity which is the ratio of displacement to time.
- Physical quantities can be measured in both scalar and vector form, with scalar quantities having only magnitude and vector quantities having both magnitude and direction.
- Physical quantities play a crucial role in the study of physics and are used to describe and analyze the behavior of objects and systems in the physical world.