Video1

Video 1: Dr. Quantum - Double slit experiment ** ** Before watching the video, answer the following questions: **
 * Great Job 7pts

1. You are about to watch a video called "Dr. Quantum - Double slit experiment". What do you think it will be about?

I think that it will be about an experiment the double slit experiment that demonstrates the inseparability of waves and mater nature.


 * 2. ** Go to a dictionary and copy the definition of "slit". Is it a noun, a verb? Is it is both? Mention all definitions. **__Please acknowledge the source.__**

Slit has both characteristics. It is a noun and a verb. There is the information: **“ slit** //(// //slit// //)// **//transitive verb//** [|**//slit//**] //,// [|**//slitting//**] **slit****′****·ting** // 1. //// to cut or split open, esp. by a straight, lengthwise incision // // 2. //// to cut lengthwise into strips // // 3. //// to cut ( //off//); sever// //Etymology: ME// slitten //< OE *//slittan//, akin to MHG// slitzen //< WGmc *//slitjan //< base of Gmc *//slitan //(> OE// slitan//) < IE base *//(s)kel-//, to cut >// [|//shield//]//,// [|//shell//] **//noun//** // 1. //// a cut or tear, esp. one that is long and straight // // 2. //// a long, narrow opening or crack //
 * //Related Forms://**
 * [|**//slitter//**] ** slit ****′**** ·ter ** **// noun “ //**

Source: [] 3. Mention five words you think you will find in the video

Mater, Physics, Quantum, Slit, Waves.

** During and after watching the video, please answer ** Please click on the following link to watch the video and answer: [] ** 1. Are there any of the words you mentioned in the previous question in the video? **

** 2. What's the experiment about? Describe it. ** · a.What does he need to do the experiment? · b.How many steps does it have? · c.What happens in each step? · d. What is the third element Dr. Quantum uses? The entire questions will be answered in the next paragraphs. (I started to answer the second question, and don’t saw the others when I finished writing… Sorry for the inconvenience.
 * Yes. All the words were mentioned in the video. **
 * 3. **** What happens with balls and one slit? And with two slits? **
 * 4. **** What about waves? **
 * 5. **** What happens with electrons **
 * 6. **** What explanation does Dr. Quantum give? **

--- The experiment studies the inseparability of waves and mater interaction. First, Dr. Quantum uses a marble, with the idea of a piece of mater. Second, Dr. Quantum used a “Marble Launcher” to launch marbles across the slit. When he studied the interaction of the marble when it crossed the slit, he watched that the marble creates a pattern with the same shape of the slit. Third, Dr. Quantum adds a second slit, and repeats the second step. He watched that the behavior of the marble is the same like the second step, creating the same pattern with the shape of both slits.

Fourth, Dr. Quantum, changed the marbles by waves, and repeats the latest steps. Using a one slit, He watched that, across the slit, the waves create the same pattern like the marbles, in its highest frequency point. But, when he adds tow slits, he watched that, in the case of waves, it creates a interference patter with itself, creating multiple repeating shapes of the two slits, only in the sites that the frequency of the wave are the max.

Fifth, after studied the interaction of waves and “little” pieces of mater (The Marbles), Dr. Quantum, decided to do the same experiment at quantum scale. Instead launch marble; he launched electrons across the slits.

In the case of one slit, the electrons behavior was the same like the marbles, creating a pattern with the same shape of the slit. But, when he adds two slits, occurs something different: The behavior of electrons was like the waves.

Sixth, to study why the electrons behavior is different crossing two slits, Dr. Quantum decided to launch one electron at a time. The conclusion was that, when the electron approaches the slit, it divides itself to cross the slits at the same time, but when he crossed the slit and tries to “rejoin” it interferes with itself, creating the interference pattern.

Additional steps:

Seventh, to understand how the electrons divide it to cross the slits, Dr. Quantum put an “Observer” close the slits. The interesting result was that the electrons behavior was like the marble, with two slits! It’s like the electron knows that it is getting observed and acts with a different form. It is how the observed interferers in the wave behavior pattern.