Thereare around 50 different simulations in the source code, each of which has anexample filewhich is for development and testing. There are alsodownloadable versionswhich be used to show simulations offline (when not connected to the internet).
The rigid body physics engine is the mostsophisticated simulation shown here. It is capable of replicating all of the other morespecialized simulations. The physics engine handlescollisions and also calculatescontact forces which allow objects to push against eachother.
The myPhysicsLab simulations do not have units of measurements specified such asmeters, kilograms, seconds. The units are dimensionless, they can beinterpreted however you want, but they must be consistent within thesimulation.
Hi, my name is Erik Neumann, I live inSeattle, WA, USA, and I am a self-employed software engineer. I started developing thiswebsite in 2001, both as a personal project to learn scientific computing, and with avision of developing an online science museum. I grew up in Chicago near theMuseum of Science and Industry which I lovedto visit and learn about science and math.
I got a BA in Mathematics at Oberlin College, Ohio, 1978, and an MBA from Univerityof Chicago, 1984. My first software jobs were using the languageAPL which Ienjoyed for its math-like conciseness and power.
I was fortunate to get involved in the Macintosh software industry early on in 1985,joiningMacroMind, which becameMacromedia. I led the softwaredevelopment at MacroMind as VP of Engineering for 5 years. Our most significant productwas VideoWorks, which was renamed Director, and lives on today asAdobe Director. In the1980's, the interactive multimedia concepts that are so common today were new and beingdeveloped. VideoWorks was mainly an animation tool, but also incorporated programmableinteractivity. Our main competitors at that time were HyperCard, SuperCard, andAuthorware. Director was used in many different ways; I am most proud that it becamethe preferred way to prototype software user interfaces for a time during the 90's.Director was also used to develop the introductory "guided tour" tutorial that camewith the Macintosh in the early years. And of course, Director was used for all sortsof art, design, and marketing projects.
I went on to work at Apple Computer on new multimedia and user interface conceptsinvolving digital agents, animated user interfaces, speech recognition and distributedinformation access. In 1991, there was a sudden flurry of activity when Apple and IBMwere trying to set up a strategic partnership. I became involved in the super-secretnegotiations, and made the suggestion that what the world needed was a standard formultimedia that multimedia content creators could rely on to publish to (ultimatelythis is what HTML became). Based on these suggestions,Kaleida Labs was founded. Ourwork there developed a product calledScriptX,which turned out to be very similar to Sun's Java which was being developed at the sametime. ScriptX had goals of supporting all forms of multimedia: text, images, audio,video, animation; being cross-platform (Mac and Windows), interpreted, object oriented,with a garbage collector to manage memory.
I then moved to Seattle and turned my attention back to mathematics and science. Irelearned calculus by doing all the problems in my old college text book and tookfurther math classes at the University of Washington. I started developing this websiteas a way to practice what I was learning. I am now happy to use excellent tools such asHTML and JavaScript, and leave their development to others. I continue to work onphysics simulations, with several new ones in development.
Experimental physics is a branch of physics that involves conducting experiments to test theories and hypotheses. It involves using scientific methods and equipment to gather data and analyze results.
Some people may find experimental physics challenging or tedious because it requires a lot of precision and attention to detail. It also involves working with complex equipment and analyzing large amounts of data, which can be overwhelming for some individuals.
Yes, experimental physics is crucial for advancing our understanding of the natural world. It allows us to test and validate theories and discover new phenomena. Many important scientific discoveries and inventions would not have been possible without experimental physics.
To excel in experimental physics, one needs a strong foundation in mathematics and physics, as well as critical thinking and problem-solving skills. Attention to detail, patience, and perseverance are also important qualities for conducting successful experiments.
Yes, experimental physics can be enjoyable for those who have a passion for science and a curiosity about the world around us. It offers the opportunity to make new discoveries and contribute to the advancement of scientific knowledge, which can be incredibly rewarding and fulfilling.
Science is different than other subjects. It is not just the subject of science that is different; the entire process of doing science is different. The means by which knowledge is acquired is different in science than it is in history or mathematics or poetry or ... . Science is different because the answers to scientific questions are not found in a textbook or through pondering high and lofty thoughts. Indeed, scientists ponder and hopefully think high and lofty thoughts; and indeed students in science class will find answers in a textbook. But the basis of what scientists believe and why they believe it is not the result of mere thinking or reading in a textbook. The basis of what scientists believe is the result of the careful collection and analysis of laboratory evidence. In any physics class, the differentness of science will be most evident when it comes time for lab.
In physics class, lab is central. Integral. Sacred. More than a mere place in the back of the classroom, the laboratory is the place where physics students do physics. It is in the laboratory that physics students learn to practice the activities of scientists - asking questions, performing procedures, collecting data, analyzing data, answering questions, and thinking of new questions to explore. The lab ideas and associated pages in The Laboratory section of this web site are designed to help teachers improve their lab programs by adopting labs with a purpose. There are over 150 lab ideas presented here - but their presentation is much different than the traditional presentation of a lab. The traditional lab comes with a lengthy procedure which dominates the landscape - both the landscape of the distributed paper as well as the landscape of the student mind. The Laboratory attempts to change all this by presenting students with a Purpose, and primarily a Purpose. In the pages at The Laboratory, you will find labs with a purpose.
The lab description pages which are linked to below describe the Question and the Purpose of each lab and provide a short description of what should be included in the student lab report. You will hardly ever find a procedure, and very few data tables. The multitude of other pages found at The Laboratory are designed to help teachers use this section of the website (or at least parts of it) effectively in their classroom. Teachers will find prescribed methods of use, a short philosophical background, extensive teacher guides for every lab, grading rubrics, auxiliary items which can be provided to assist students in the completing of their lab work, and information about using lab notebooks. And to make it as easy as possible to use the labs in the classroom, much of the information is provided to teachers as PDF and Microsoft Word downloads. Once downloaded, the information can be edited, altered, augmented and customized to reflect the teacher's personal style and the unique needs of the students in their classrooms.
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The fraction of groups in semesters 1 and 2 proposing and carrying out changes to their experiments (left, purple) and identifying and interpreting model disagreements (right, green) in their lab notes indicates that students extensively engage in these behaviors, with variation across activities and semesters. Lab activities (indicated on the x axis) are ordered sequentially and correspond to weeks listed in Table 1.
Pairwise comparisons of exam scores by lab condition (left), major (center), and gender (right) for semester 1 show similar distributions between lab conditions, except on midterm II, but suggest different distributions between physics and nonphysics majors and between women and men on all exams. All exams are scored out of 100.
It is not necessary to obtain permission to reuse thisarticle or its components as it is available under the terms ofthe Creative Commons Attribution 4.0 International license.This license permits unrestricted use, distribution, andreproduction in any medium, provided attribution to the author(s) andthe published article's title, journal citation, and DOI aremaintained. Please note that some figures may have been included withpermission from other third parties. It is your responsibility toobtain the proper permission from the rights holder directly forthese figures.
Students will work in assigned groups of 3 (or fewer) students and complete an experiment during each lab meeting. There will be 10 labs total. Procedures for each lab can be accessed via the Canvas Home page or your Canvas To Do list. Please obey the following guidelines for each lab:
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