Physics
An imaginary dashed line drawn at 90 degrees (perpendicular) to the interface between two media at the point of incidence.
Velocity Differences
Core Practical: Refraction
Specular and Diffuse Reflection
Ray Diagrams and TIR
Wave Interaction with Substances
Refraction at Boundaries
Wave Effects at Interfaces
Upthrust
Pressure Explanation
Pressure Depth and Density
Force Normal to Surface
Pressure in a Fluid
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