This concept-building activity contains a set of sequenced simulations for investigating how …
This concept-building activity contains a set of sequenced simulations for investigating how atoms can be excited to give off radiation (photons). Students explore 3-dimensional models to learn about the nature of photons as "wave packets" of light, how photons are emitted, and the connection between an atom's electron configuration and how it absorbs light. Registered users are able to use free data capture tools to take snapshots, drag thumbnails, and submit responses. This item is part of the Concord Consortium, a nonprofit research and development organization dedicated to transforming education through technology.
Learn how to make waves of all different shapes by adding up …
Learn how to make waves of all different shapes by adding up sines or cosines. Make waves in space and time and measure their wavelengths and periods. See how changing the amplitudes of different harmonics changes the waves. Compare different mathematical expressions for your waves.
The microscopic world is full of phenomena very different from what we …
The microscopic world is full of phenomena very different from what we see in everyday life. Some of those phenomena can only be explained using quantum mechanics. This activity introduces basic quantum mechanics concepts about electrons that are essential to understanding modern and future technology, especially nanotechnology. Start by exploring probability distribution, then discover the behavior of electrons with a series of simulations.
Delve into a microscopic world working with models that show how electron …
Delve into a microscopic world working with models that show how electron waves can tunnel through certain types of barriers. Learn about the novel devices and apparatuses that have been invented using this concept. Discover how tunneling makes it possible for computers to run faster and for scientists to look more deeply into the microscopic world.
Broadcast radio waves from KPhET. Wiggle the transmitter electron manually or have …
Broadcast radio waves from KPhET. Wiggle the transmitter electron manually or have it oscillate automatically. Display the field as a curve or vectors. The strip chart shows the electron positions at the transmitter and at the receiver.
This simulation lets you see sound waves. Adjust the frequency or volume …
This simulation lets you see sound waves. Adjust the frequency or volume and you can see and hear how the wave changes. Move the listener around and hear what she hears.
In this inquiry lab activity, students use technology including a free virtual …
In this inquiry lab activity, students use technology including a free virtual oscilloscope to determine the links between the wave characteristics of sound waves and how people perceive sound. They will discover the connection between amplitude and volume of a wave, and the connection between the frequency of a wave and the pitch that people here.
In this inquiry lab activity, students use technology including a free virtual …
In this inquiry lab activity, students use technology including a free virtual oscilloscope to determine the links between the wave characteristics of sound waves and how people perceive sound. They will discover the connection between amplitude and volume of a wave, and the connection between the frequency of a wave and the pitch that people here.
Watch a string vibrate in slow motion. Wiggle the end of the …
Watch a string vibrate in slow motion. Wiggle the end of the string and make waves, or adjust the frequency and amplitude of an oscillator. Adjust the damping and tension. The end can be fixed, loose, or open.
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