Physics 110 – Introductory Physics
Physics 110 is a one semester survey course covering a wide range of topics including measurements and unit systems, laws of motion, momentum and energy conservation, properties of matter, temperature and heat, and electricity and magnetism.
NASA's Mars Exploration Program
National Aeronautics and Space Administration website for Mars rovers Spirit and Opportunity, and the Global Surveyor satellite.
A playable guitar built by Cornell graduate student Keith Aubin with strings "150 by 200 nanometers in cross-section and ranging from 6 to 12 micrometers in length. The nanoguitar is played by hitting the strings with a focused laser beam."
Sandia National Laboratories Micromachines
"Imagine machines so small they are imperceptible to the human eye. Imagine working machines with gears no bigger than a grain of pollen. Welcome to the microdomain, in which Sandia National Laboratories is a leader in the development of micromachines or MEMS (MicroElectroMechanical Systems)."
The Legend of the Leaning Tower
A description and historical analysis of Galileo's experiments on the mass-independence of the acceleration due to gravity. Discusses astronaut David Scott's August 2, 1971 duplication of Galileo's famous experiment by dropping a feather and a hammer on the surface of the moon.
Cornell Tsunami Simulation
Cornell University computer simulation of the Dec. 26, 2004 Indian Ocean Tsunami.
A larger 640X480 43MB QuickTime version can be accessed directly and saved to disk via this link
. ("This will take several minutes to load even on a fast Internet connection.")
Energy Concepts Primer
"Information about basic energy physics in a conceptually deep but mathematically simple way."
Energy and Momentum
Discussion of conservation of momentum and kinetic energy. Compares elastic to inelastic collisions and introduces the coefficient of restitution – e. Five examples are worked out.
The Nose Crusher
Videos (.wmv) of a swinging pendulum to demonstrate the conservation of energy.
High Speed Imaging at NCSSM
Take your time to fully explore all the pages in this website. The images are truly amazing. Direct links to just a small sample are given below.
Stopping Time: The Photographs of Harold Edgerton
"A bullet seen the instant it explodes through an apple . . . a milk-drop splash transformed into a perfect coronet . . . a golf swing shown in a procession of exposures taken milliseconds apart — some of the world's most famous photographs were taken by Harold Edgerton, the late MIT scientist who invented the electronic flash."
Which Definition of Element is Correct?
Examples of incorrect definitions of the word "element" and teaching suggestions on the proper order of introducing the related topics of atoms, elements and isotopes.
What is an element?
Comparative discussion of modern and obsolete definitions of the word "element".
Java applet demonstrating Hooke's Law and the elastic limit.
Soap and Surface Tension Video 1
3.5MB .mpeg movie showing how a small amount of soap reduces the surface tension of water and causes various floating objects to sink.
Soap and Surface Tension Video 2
1.1MB QuickTime movie showing how a small amount of soap reduces the surface tension of water and causes a surface layer of sulfur powder to sink.
(Sub) Surface Tension Demo
Image of a wire ring pushing up from below on the surface of a beaker of water. Shows that surface tension works in both directions - it can prevent objects which are denser than water from sinking and objects which are lighter than water from rising/breaking through the surface.
Capillary Action Demo
Four glass tubes of different diameter are connected at the base. Image shows how capillary action causes water to rise to varying heights.
"Aluminum coins can be 'floated' on water. They are actually supported by surface tension. The coins will move together to form crystal patterns."
Water Strider Pictures
Water strider pictures from the website of David L. Su
, graduate student in mathematics at the MIT Fluid Dynamics Laboratory. Water sprinkled with Thymol Blue dye shows the dipolar vortexes created by the water strider in order to propel it forward.
What is Static Electricity?
Begins by explaining what an atom is and the difference between neutrons, protons and electrons. Gives the Triboelectric Series, which orders various materials by their tendency to give up electrons when in contact with other materials.
Explanation of electric fields and electric and magnetic constants.
How to make a simple motor out of copper wire, a magnet and a battery.
Clinical MRI Images
Angiography, head & neck, spine and extremity images from The Basics of MRI
, a website by Joseph P. Hornak, professor of Chemistry and Imaging Science at the Rochester Institute of Technology.