Mixing of light - go over the 8 colors we studied and how each is formed:
Green, Red, Blue, Cyan, Magenta, Yellow, White, Black.
Some questions:
What is a "shadow"?
What is the difference between reflection and absorption?
If you have a red & green light on, what color will be on the wall?
If you have a blue object and take it to a room lit with yellow, what color will reflect and absorb?
Review these links I found for you.
Prisms:
Why do prisms create a rainbow?
Do different colors all have the same angle of refraction?
Describe the differenc between reflection and refraction.
What is the "Law of Reflection"?
What is "the normal" line to the surface of an object?
Can you see light when it travels through air? What needs to happen for you to see light?
What is the difference between specular and diffuse reflection?
When does the angle of refraction get larger than the incident angle? When does it get smaller?
More on color & light:
Why is the sky blue? What are sunsets red?
If the sky is "red" on Mars, what color are their sunsets?
Make sure to review "Fish Vision" (essay 1.6) and why images seem distorted when looking up from the bottom of a pool.
Ray tracing and "image" location:
Trace rays from an object reflecting into a mirror and locate the image
Use ray tracing for both the concave and convex lenses. Practice differenct scenarios:
Concave, Convex, inside focal point, outside focal point, on focal point, etc.
Answer if the image is: real, virtual, inverted, upright, magnified, de-magnified, and locate 'where' it is (from the lens)
What is a principle axis? what is the lens axis?
What is converging? Diverging? What 3 rays do we always use in ray tracing?
Wavcs:
Review all concepts in waves and read the online essays from 2.1 to 2.4, then include 2.6
(we'll do 2.5 and 2.7 and 2.8 when we get back in January)
Know how to do all of the caluclations we did on our last quiz and last test.
Important!
Know how to do a test problem!!! First step, write down the given values. Then, write down the equation. Then solve the equation (before you plug in your values). Finally, lug in your values.
Go Over...
Old tests, old quizzes, all online homeworks, the videos I linked, and that wave tank link.
Your MAJOR lab practical will be a Question (there are a few other lab practical questions that take under 4 minutes to answer). But your MAJOR task is that you will be asked a single question. Then you will take some measurements and answer the question with your DATA and your EXPERIMENT!