This demonstration uses an "earthquake machine" constructed from bricks, sand paper, and …
This demonstration uses an "earthquake machine" constructed from bricks, sand paper, and a winch, to simulate the buildup of elastic strain energy prior to a seismic event and the release of that energy during an earthquake.
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This interactive visualization adapted from NASA and the U.S. Geological Survey illustrates …
This interactive visualization adapted from NASA and the U.S. Geological Survey illustrates the concept of albedo, which is the measure of how much solar radiation is reflected from Earth's surface.
How many calories are in your favorite foods? How much exercise would …
How many calories are in your favorite foods? How much exercise would you have to do to burn off these calories? What is the relationship between calories and weight? Explore these issues by choosing diet and exercise and keeping an eye on your weight.
This highly informative site explores five different ecosystems and the public health …
This highly informative site explores five different ecosystems and the public health issues that have arisen in each. Students can explore the different ways that ecosystem services that address air quality, heat hazard mitigation, recreation and physical activity, water hazard mitigation, and water quality impact many health conditions.
This site contains 21 modular, easy to use economic models, that are …
This site contains 21 modular, easy to use economic models, that are appropriate for class assignments or in-class demonstrations. Students can simulate all the standard models taught in most economics courses. EconModel uses the Windows OS. The simulations were developed by William R. Parke of the University of North Carolina at Chapel Hill.
Interactive Lecture Demonstration to illustrate that impulses are larger in elastic collisions …
Interactive Lecture Demonstration to illustrate that impulses are larger in elastic collisions than in inelastic collisions if other factors are the same.
Play hockey with electric charges. Place charges on the ice, then hit …
Play hockey with electric charges. Place charges on the ice, then hit start to try to get the puck in the goal. View the electric field. Trace the puck's motion. Make the game harder by placing walls in front of the goal. This is a clone of the popular simulation of the same name marketed by Physics Academic Software and written by Prof. Ruth Chabay of the Dept of Physics at North Carolina State University.
Play hockey with electric charges. Place charges on the ice, then hit …
Play hockey with electric charges. Place charges on the ice, then hit start to try to get the puck in the goal. View the electric field. Trace the puck's motion. Make the game harder by placing walls in front of the goal. This is a clone of the popular simulation of the same name marketed by Physics Academic Software and written by Prof. Ruth Chabay of the Dept of Physics at North Carolina State University.
Play ball! Add charges to the Field of Dreams and see how …
Play ball! Add charges to the Field of Dreams and see how they react to the electric field. Turn on a background electric field and adjust the direction and magnitude. (Kevin Costner not included).
The Electricity data browser allows individuals and organizations to create, download, or …
The Electricity data browser allows individuals and organizations to create, download, or view graphs, reports, and tables based on energy data sets from the US Energy Information Administration. These data sets are updated periodically and include generation and consumption, sales, costs, and quality.
This simple demonstration shows the interaction between electricity and magnetism. Two coils …
This simple demonstration shows the interaction between electricity and magnetism. Two coils of wire are held close to each other, but not touching. One is attached to a music source, such as a small radio or iPod, and the other is attached to an external speaker. Students can hear the music through the speaker even though there is no direct connection.
In this activity, students demonstrate the relationship between wave frequency and energy …
In this activity, students demonstrate the relationship between wave frequency and energy in the electromagnetic spectrum by shaking a rope to identify the relationships. This activity is part of Unit 2 in the Space Based Astronomy guide that contains background information, worksheets, assessments, extensions, and standards.
An interactive lecture demonstration intended to help students use physics reasoning to …
An interactive lecture demonstration intended to help students use physics reasoning to predict the outcome of a puzzling electrostatics demonstration.
The simulation illustrates the situation of a person in an elevator. The …
The simulation illustrates the situation of a person in an elevator. The elevator takes the person from one floor to the next floor up. For this situation, try sketching three free-body diagrams, one for the person, another for the elevator, and a third for the person-elevator system. First, draw the diagrams for when the system remains at rest. Then, predict whether the free-body diagrams will change (and, if so, how) when the elevator is accelerating up, moving up at constant velocity, and moving up but slowing down (acceleration is down).
The simulation draws the diagrams for all these cases, but make sure you try drawing your own before looking at the simulation's diagrams.
This climate simulation tool makes it intuitive to see how changes in …
This climate simulation tool makes it intuitive to see how changes in energy, land use, agriculture, and other policies will affect Earth's projected temperature. Users move sliders on various policy actions and see immediate feedback on energy sources, emissions, and global temperature.
This online calculator converts from one energy unit to another - from …
This online calculator converts from one energy unit to another - from gallons to British thermal units (Btu), kilowatt/hours to megajoules, short tons to metric tons.
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