Fundamentals of Physical Science

📋 Course Outline

1. States of Matter
2. Density and Buoyancy
3. Pressure and Gas Laws
4. Electricity and Circuits
5. Light and Optics
6. Chemical Reactions
7. Periodic Table and Elements
8. Acids and Bases
9. Energy and Work
10. Wave Properties

📖 1. States of Matter

🔑 Key Concepts & Definitions

• Solid state: A form of matter characterized by a fixed shape and volume, where particles are tightly packed in a regular arrangement and only vibrate around fixed positions.
• Liquid state: A state of matter with a fixed volume but no fixed shape; particles are close but can move past each other, allowing the liquid to flow.
• Gas state: A form of matter with neither fixed shape nor volume; particles are far apart and move freely, filling the container they occupy.
• Plasma state: An ionized state of matter consisting of free electrons and ions, often found at very high temperatures, such as in stars or lightning.
• Phase change: The transition of matter from one state to another, involving energy transfer without changing the substance's chemical identity.
• Melting point: The specific temperature at which a solid turns into a liquid, defined as the temperature where solid and liquid phases coexist in equilibrium.

📝 Essential Points