Chemblog!

I hope that I will NEVER have to say this again: Whenever you take ANY test (especially in my class), make SURE, BEFORE you waste time writing an irrelevant answer, that you UNDERSTAND and EXPLICITLY follow the directions in the question. Take your rehearsed answers and throw them in the garbage IF they do not answer the question that is ACTUALLY asked on the exam! Within the first two minutes of each Honors test today, I saw students rushing and writing answers that were NOT even asked for on the exam. NOT ONLY will you NOT receive credit for information that is NOT ASKED for (OR, if you write something different from HOW you are supposed to write the answer, as directed by the question), BUT ALSO you may lose points if your unnecessary information is incorrect. A brief glance at the tests showed that about 2 in 5 students are STILL IGNORING THE QUESTIONS! Your underlining or circling keywords is a MEANINGLESS waste of time if you actively refuse to learn anything by not using that technique in any discriminating manner. Some are still indiscriminately underlining key terms long after their irrelevant answers have been given.
This is the second quarter. You must no longer ignore the MOST IMPORTANT test-taking skill that I have emphasized since DAY ONE of this course: to answer what is asked for in the question!

AP: an alarming number of you made UNSUPPORTED statements in the Planck/Einstein Photoelectric Effect question. If you claim that red light has lower energy than blue light after I clearly stated that the total energy of red light used was greater, you are ignoring and contradicting the information in the question. Furthermore, even if you said that red light has less energy PER PHOTON than blue light has, anyone can say that your claim is FALSE. It is your job to prove your claim in an explanation. You needed a MERE sentence to prove your claim. This mere sentence is the absolute pith/core/heart to understanding the whole experiment: according to Planck's Theory, the energy PER QUANTUM/PHOTON is proportional to the FREQUENCY of the photon's associated wave of light; since red light has a lower frequency than blue light (THIS IS EXPERIMENTALLY MEASURED AND NEED NOT BE EXPLAINED), red light must have a lower energy PER PHOTON (the most important ratio in the whole explanation without which the phenomenon CANNOT be explained), than blue light. Furthermore, many of you still do not realize that, in Planck's particle terminology, light intensity is proportional to the number of photons transmitted PER SECOND. Learn this. Know this.