Light Intensity - IB Physics

I explain how to calculate light intensity and how to use proportional reasoning to find changes in light intensity based on the distance from a light source and on the amplitude of the light wave.

Check out my channel for lecture videos on the entire IB physics curriculum organized by topic. A like & subscribe is always appreciated!

0:00 Variable, Unit, and Equation
1:21 Connection Between Spheres and Intensity
2:47 Example Problem 1
4:26 Example Problem 2
5:30 Proportional Reasoning
6:00 Example Proportional Reasoning Problem 1
6:52 Example Proportional Reasoning Problem 2

• #education
• #light
• #intensity
• #lux
• #measurement
• #ib
• #physics
• #calculate
• #ib_physics
• #ap_physics
• #math
• #help