Electromagnetism and atomic models: A comprehensive guide for high school physics
This document covers key concepts in electromagnetism and atomic structure, including:
- History and properties of electric charges
- Atomic models, especially Rutherford's atomic model
- Electrostatic forces and Coulomb's law
- Electric fields
- Applications like electroscopes and Coulomb balances
Key points:
- Electric charges were known since ancient times but scientifically studied from the 1700s
- Atoms consist of a positively charged nucleus surrounded by negatively charged electrons
- Like charges repel, opposite charges attract
- The strength of electrostatic forces depends on charge magnitude and distance
- Electric fields describe the influence of charges on other charges in space