Thursday, March 20, 2014

Spring Break Homework



Over spring break please watch the video in the link below, play with the simulation (also linked) and answer the 9 questions.  Bring your answers to class.  They will be used in a discussion that requires your preparation. We will check them for completion at the beginning of the activity.


Link to Spring Break Homework

If you have missed any of the previous videos, they can be found at this link.

Link to Videos

Finally, on the first block day after Spring Break the class will engage in a Socratic Seminar on some challenging questions about the nature of light.  The following link to an alternative assignment is required for people who miss that day.

Seminar Make Up Assignment

Thursday, March 13, 2014

Modeling a Particle Model For Light - Lab Report

Here is the prompt for the lab report.

Write a  two paragraph conclusion for the lab.  It should focus on the plausibility of light being made of particles and show logical reasoning based on the results of our lab.  You may want to start it with one of the sentences below.

The results of this lab allow me to state that there is evidence that light could be a particle, because…
The results of this lab allow me to state that there is evidence that light probably isn’t a particle, because…
The results of this lab do not allow me to state that there is evidence that light is a particle or isn’t a particle, because…
In order to have had more useful data, I would have needed to …

The second paragraph should propose a further test you could perform on either particles or light to confirm or deny the possibility that light is made of speeding “photon” particles.  It would be great if it was an experiment that you could actually perform in the classroom, but it is probably more realistic that it is simply an experiment that people could perform assuming that they had better equipment than we do.


This is not a research project.  I don't expect a historical or established experiment.  In class we listed a number of assumptions necessary to make a particle model for light workable.  Some of these were assumptions about light.  Some were assumptions about the necessary particles.  Focus on one of these assumptions and imagine/invent a test that probes its validity. 

In addition to the conclusion, please include a screen shot of your data table and graph.

Tuesday, March 11, 2014