Final answer:
The 4.18 unit test on light - part 2 quiz will cover topics related to Reflection and Refraction, particularly focusing on the Law of Reflection and the Law of Refraction.
Step-by-step explanation:
The topics that are likely to be covered in the 4.18 unit test on light - part 2 quiz will be Reflection and Refraction. This includes the Law of Reflection, the Law of Refraction, Total Internal Reflection, Dispersion, Image Formation by Lenses, and Image Formation by Mirrors as outlined in chapters like 25.1 to 25.7 focusing on aspects such as the ray nature of light and geometric optics. Concepts like electric potential and electric field or wave optics are related but seem to be from different chapters, indicating a broader physics curriculum.
From the provided reference information, students can expect questions related to the reflection of light from surfaces, the principle and applications of corner reflectors, and how the refraction of light helps in forming images. Additionally, students should understand principles such as why the index of refraction is always greater than or equal to 1 and the directional change of light when transitioning between different mediums such as air, water, and glass.