Mathematics & Scientific Principles
Before we dive into physics, we need to lay some groundwork. First, we must understand the core mathematical principles involved in physical laws; second, we need to understand the scientific process itself.
Mathematics is the language of physics. When scientists conduct experiments, they measure quantities and establish relationships between variables. To do this effectively, we need to understand:
- What we measure
- How we measure
- How we represent values
- How we analyze and establish relationships
Why Do We Need Standard Units?
Imagine trying to trade or build when one person measures length in inches and another in metres—it creates confusion and inconsistency.
To ensure scientists worldwide can accurately communicate and reproduce experiments, the scientific community established the International System of Units (SI units).
Key Concepts:
- 📏 Dimension: The measurable physical quantity (e.g., length, mass, time, temperature).
- 📐 Unit: The standard reference used to measure that dimension (e.g., metres, kilograms, seconds).
- 🌍 SI Units: The universal standard ensuring global consistency across all scientific fields.