Explore the Bohr model of atoms by studying the absorption and emission of light from simple gases in the context of starlight using this interactive simulation. A PDF worksheet and a video tutorial are also available. [2:52]

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Learn about making conversions between different types of units by negotiating with a trader at the crossroads. Practice exchanges with different measurement and currency systems in a simulation. Students apply unit conversion between metric and standard systems.

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Watch a clock slow down in the strong gravitational field near the event horizon of a massive black hole. A PDF worksheet and a video tutorial are also available. [2:57]

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Learn about centripetal motion in the context of a bobsled on a track. Adjust variables to test how many ways the bobsled can stay on the track in a race with the simulation. Examine potential problems that could occur with centripetal force.

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Understand how the transition from slipping to rolling occurs in the context of a thrown bowling ball using this interactive simulation. A PDF worksheet and a video tutorial are also available. [4:09]

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Learn about the relationship between velocity and position for a swimmer. Adjust the velocity of the legs, streamline, and arms to experiment with the slope of velocity in the simulation swimmer. Dig a bit deeper into the physics of swimming with additional examples.

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Learn about the law of reflection by curved mirrors and how the shape and size of a telescope impacts its observing capabilities.

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Learn about the relationship between position and velocity for a diver accelerating under the influence of gravity and air resistance. Measure velocity and position based on variables of the height of the cliff and air resistance. What did Galileo's free-fall mean? Find out from one of the four additional examples highlighting acceleration due to gravity.

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This sim explains the concept of elastic and inelastic collision using two bumper cars. A PDF worksheet and a video tutorial are also available. [3:40]

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Learn how the placement of charges leads to an electric field and electric potential patterns in nearby space using our interactive simulation. A PDF worksheet and a video tutorial are also available. [7:41]

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A simulation investigating why a diamond shines by looking at refraction, reflection, and total internal reflection.

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Learn about the analysis of parallel circuits in the context of a realistic household circuit using our interactive simulation. A PDF worksheet and a video tutorial are also available. [3:24]

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Understand how magnetic fields generated by solenoid coils can be used to create an operating doorbell using this interactive simulation. A PDF worksheet and a video tutorial are also available. [1:51]

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Learn about torque balance in the context of a medieval drawbridge using this interactive simulation. A PDF worksheet and a video tutorial are also available. [3:47]

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Learn about adding two vectors together by components in the context of a GPS-style city map. Adjust magnitude and angles in the two vectors to simulate the driverless car. Examples taking this concept further are provided.

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Explore a different way of thinking about electricity as a way to become familiar with the concept of potential, current, and resistance using this interactive simulation. A PDF worksheet and a video tutorial are also available. [4:18]

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Learn how magnetic forces acting on current-carrying wires can be used to drive an electric motor using this interactive simulation. A PDF worksheet and a video tutorial are also available. [2:47]

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Understand the size and shape of the Earth's magnetic fields, explore the magnetic fields of other planets using this interactive simulation. A PDF worksheet and a video tutorial are also available. [2:35]

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Learn about how capacitors are used in circuits to create transient events such as the flash of a light bulb using this interactive simulation. A PDF worksheet and a video tutorial are also available. [3:32]

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Learn about electric circuits, the flow of current, electrical resistance, and electrical power dissipation by exploring the operation of a flashlight using this interactive simulation. A PDF worksheet and a video tutorial are also available. [4:57]

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