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This example is quite often used by physicists as an example for the effect of particle size on absorption/transmission characteristics. In this case the material contains nm-sized gold particles that have a so called 'plasmon resonance' at a certain frequency. All the electrons wiggle at their best when this takes place. Take a pendulum as the mechanical analogy. If you excite it with its natural frequency (eigen-frequency), the amplitude is greatest.
2011 Bates Summer Scholars work on making "sound" measurements. They start out in Carnegie 328 lab and then head outside in two groups of five. The group shown outdoors in on Garcelon Field.
This exercise is part of the course called Musical Acoustics, taught by Professor of Physics John Smedley. An introduction to the science of sound and the acoustics of musical instruments through the study of mechanical vibrations and waves. Concepts such as resonance, standing waves, and Fourier synthesis and analysis are developed and applied to theoretical and laboratory investigations of musical sound. Additional topics include hearing, psychoacoustics, and musical scales and harmony. No background in physics or mathematics beyond algebra is assumed. Laboratory work, problem solving, and simulations are integrated into class activities.
Outdoor Group:
Asha Mohamud '15 of Lewiston, Maine
Tyler Jones '15 of Newport, Maine
Vasin Vivattanakulpanit '15 of Portland
Mark Charest '15 of Westbrook, Maine
Ramya Ghantasala '15 of Westford, Mass.
In lab:
Angel Arango '15 of Fort Worth, Texas
Yolanda Rodriguez '15 of North Miami Beach, Fla.
Austin Portal '15 of Somers, Conn.
Andria Bhagwandeen '15 of Boston, Mass.
Bryan Carrillo '15 of Ontario, Calif.
Fidelia Zelaya '15 of Silver Spring, Md. (not shown)
ICSE Class 11 Physics includes some topics that are tough and students usually have a hard time understanding. These topics include gravitation, and orbital velocity, etc. These are some complex concepts, to simplify these complex concepts and help students learn with ease, Extramarks provides highly interactive online tutorials. These tutorials are designed by our expert developers in collaboration with expert faculties of the subject matter to help students attain conceptual clarity.
Photos of various physics labs going on in the physical sciences building on the campus of Eastern Illinois University in Charleston, Illinois on September 16, 2010. (Jay Grabiec)
Photos of various physics labs going on in the physical sciences building on the campus of Eastern Illinois University in Charleston, Illinois on September 16, 2010. (Jay Grabiec)
Ram Rai, assistant professor physics at Buffalo State, pours liquid nitrogen into a container. This experiment demonstrates superconductivity.
Class 11 Physics can be understood better with the Extramarks app. The Extramarks app has video lectures and video solutions for the complex concepts of the subject. The video lessons help make the learning process more interactive and immersive. The app is a reliable source of learning online. Download the Extramarks learning app now and avail a free trial of 7 days.
The Oberlin College Lab Crawl is an annual open house that provides a fun and informal interaction with math and science on campus. In this lab physics students study unusual materials in the form of nanoparticles, thin ribbons, and fluids.
Photo by Jennifer Manna
One common thing among my experimental group is that we all draw diagrams when we are trying to explain things. These are no works of art but yet they carry their own charm when someone comes across them later... sometimes we can even figure out what they were supposed to be.
Photos of various physics labs going on in the physical sciences building on the campus of Eastern Illinois University in Charleston, Illinois on September 16, 2010. (Jay Grabiec)
Associate Professor David Fazzini (lying down) and Professor Tom Carter along with a student assistant demonstrate physics principles using a bed of nails, a concrete block and a sledgehammer.
Photos of various physics labs going on in the physical sciences building on the campus of Eastern Illinois University in Charleston, Illinois on September 16, 2010. (Jay Grabiec)
Class 11 Physics can be studied with the help of video tutorials on the Extramarks app. The app has interactive video lessons delivered by expert teachers making it a reliable source of learning. The videos can be accessed anywhere at any time by the students. The app has various other learning tools for the students to learn from. This can be the best app for learning.