Quantum physics is the branch of physics that deals with the behavior and interactions of particles on a microscopic scale. It explains how particles such as atoms and subatomic particles behave and interact with each other.
Classical physics describes the behavior of objects on a macroscopic scale, while quantum physics describes the behavior of particles on a microscopic scale. Classical physics follows the laws of classical mechanics, while quantum physics follows the laws of quantum mechanics, which involve probabilities and uncertainty.
An atom is the smallest unit of matter that retains the properties of an element. It is made up of a nucleus, which contains protons and neutrons, and electrons that orbit around the nucleus.
The Heisenberg uncertainty principle states that it is impossible to know the exact position and momentum of a particle at the same time. This is because the act of measuring one property of a particle affects the other, making it impossible to have precise knowledge of both simultaneously.
Quantum physics has led to many technological advancements, such as transistors, lasers, and MRI machines. It also plays a crucial role in understanding and developing new materials, as well as in fields like telecommunications and cryptography.