**Physics** is the study of the interactions of matter and energy within time and space. This extends into many different areas, and ranges from the subatomic scale to the universe itself.

Mathematics is very important to the field, as many physical relations are described by mathematical equations. Advanced mathematics (such as vector calculus and differential equations) are fundamental to the field.

## Sub-fieldsEdit

**Dynamics**is the study of forces, torques, and their effects on the motion of bodies. Dynamics is further divided into fields such as kinetics, ballistics, and fluid dynamics.**Thermodynamics is the study of temperature, heat transfer, and their relationships with work and energy.****Optics**is the study of electromagnetic radiation and its interactions with matter.**Particle physics**studies the behavior of subatomic particles, such as atoms, hadrons, electrons, and quarks.