Optics B/C

[illusionofconfusion]

I'm pretty sure the test proctor would not even be able to understand that, let alone expect 6-8th graders to take a test on it.

let's just all collectively agree NOT to study that, so it'll be a level playing field. Ok everyone?

I still like this idea the best.

[sarahrutledge]

okay, so im really starting to panic. we have regionals this weekend and i have no idea how to do the laser shoot... can anyone help? references? templates? anything?

[foreverphysics]

You should probably start making your own templates...on the previous page, there were lists of programs different people used, like GSP, Asymptote, etc., etc. Just do the laser shoot as accurately as possible. Protractors help.
You’re not going to be at the Auburn Regionals, are you?

Seriously, can anyone help with the math?

[sarahrutledge]

i will be at the auburn regionals! as a 9th grader on the team.

when i have a template, will i have to do any complicated math to figure out how to do it?

[sarahrutledge]

AND how do i use the geogebra template maker? im clueless :c

[JSGandora]

It's not really a "template maker", you can make fixed angles with it, which you can export to pdf or whatever type of file and print it out.

[cngu23]

i will be at the auburn regionals! as a 9th grader on the team.

when i have a template, will i have to do any complicated math to figure out how to do it?

A template is basically a premade setup of possible options to position the mirrors. You should include various mirror positions so that your template will work no matter how the 3 obstacles are placed. I am not sure how to do it on geogebra, but basically, you need to draw a line representing each mirror, and how the laser will reflect off it after hitting the mirror from a certain angle.

what is the difference between coherence and non-coherence?

[foreverphysics]

Coherent light source=the light is uniform, all of the same wavelength and frequency, emitted at the same rate. Incoherent=not that.

[chalker]

FYI, we posted some new FAQs today that might be of interest: http://soinc.org/node/291

[piisamazing]

on your equations sheets, which equations are you including? i already have my basics, and i wondered if i should also include thick lense equations to complement the lense makers equation