Monitor Your World vs Optical Path

The Monitor Your World app works in conjunction with a sensor to monitor the humidity, temperature, and ambient light of your surroundings. This enables students to evaluate the environment near their schools, enabling them to collect and upload their own data and pictures. Students use the Monitor Your World app to learn about the various characteristics of their local environment. Teachers work with students to explain how these properties affect the surroundings in various ways. For more educational science, math, and engineering resources, visit us at https://concord.org, like us on Facebook: https://facebook.com/concordconsortium and follow us on Twitter: https://twitter.com/concorddotorg For more information about the WATERS project: https://concord.org/waters This material is based upon work supported by the National Science Foundation under grant numbers DRL-1850051, DRL-1850060, and DRL-1849719. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.

This program is designed to illustrate the laws of reflection and refraction of light. As the laser pointer moves, the laser beam enters from the upper medium into the lower medium. When the two media differ, both reflection and refraction phenomena occur. When the refractive index of the upper medium is greater than that of the lower medium, and the angle of incidence exceeds the critical angle, a fascinating total internal reflection can be observed. This program is suitable for primary and secondary school students to learn and understand the laws of reflection and refraction of light, allowing them to review and reinforce physics concepts through engaging interactive activities. It can also be utilized by teachers for classroom demonstrations, enhancing lessons with a more lively and dynamic approach. The program's key features include: 1. Demonstration of reflection and refraction laws when the upper and lower media differ: The angle of reflection equals the angle of incidence, and the ratio of the sines of the angles of incidence and refraction equals the ratio of the refractive indices of the lower and upper media. 2. Demonstration of total internal reflection when the refractive index of the upper medium is greater than that of the lower medium: When the angle of incidence exceeds the critical angle, all incident light is reflected back, with no refracted light. 3. Selection of five laser colors - red, blue, green, orange, and purple - each corresponding to a unique refractive index. Lasers with higher frequencies exhibit greater refractive indices.