Light phenomena

Содержание и основные понятия

This chapter links observed phenomena, physical models, and mathematical laws, first form a qualitative picture, then explore the relationships in interactive models.
GEF · Grade 8
PIF · Baseline
theory + model
10
Chapter Pages
Three meaningful routes: concepts, laws, and model research.
10.1
Light and reflection
♪ Lucky, Shadows and Mirrors
10.2
Light refractation
Why the beam changes direction
10.3
Lines and optical instruments
Image building
→
Study route
10.1. Light and reflection
In a homogeneous, transparent environment, light spreads straightly, and at the boundary of the world, part of the light is reflected, and the angle of reflection is equal to the angle.
10.2. Light refractive
At the boundary of the medium, the speed of light changes, so the beam is usually rejected.
10.3. Lines and optical instruments
- The lens that gathers the parallel beams into a focus that scatters them into the lens. The position and size of the image vary from the distance of the object to the lens;
Basis of contents:
The federal work programme on physics, the GEF OSL/GS and the thematic sequence of popular school lines are written specifically for Alterna and does not reproduce textbooks.