I didn't know whether to post this here or the homework section. But because this isn't actually homework and there are no questions that require mathematical processes, I thought this would be a better place to post it. Feel free to redirect it to wherever it should belong. So quick backstory. I am in high school and am reaching my final exam block. I offhandedly said to the physics teacher that I'd sit his exam, even though I haven't done the subject and having zero prior knowledge. I know this is annoying to help but I am a man(almost) of my word. By the way, due to previous exams for subjects that I actually do, I haven't been able to study this subject until today. The exam is in 12 hours and I'd like to be more than a useless duck with a big ego. With that being said, these are the concepts I need to learn: - Photoelectric Effect, what is it? Honestly, it sounds pretty awesome. - Carbon 14 1/2 life and how I could justify it through physics - Explaining and understanding fission of nuclei - How an electro microscope works - Mass defect and Nuclear fission I tried looking these up on my own but due to having zero base knowledge on the topic, I don't understand half the terminology.