DMV Test Page

This site has links to Direct Measurement Video prototypes. These are for testing only and are subject to change at any time. Not all features work on all browsers. For published videos, please visit our project website.

July 4th Cannon

A spectacular explosion launches a projectile upwards. This instance includes floating tool and stopwatch.

Ruben's Tube (Quantitative)

Students can measure the wavelength and frequencies for standing waves in a Ruben's flame tube.

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Wave Properties (three tensions)

Waves of various frequencies and amplitudes on a spring with three tensions. This is our first 3-dimensional grid where students can independently vary any of three different parameters.

Wave Properties (one tension)

Waves of various frequencies and amplitudes.

Hill Runners

Olympic Cross Country skier Jessie Diggins runs up a steep hill. The second time, she carries a very heavy packpack.

Ballistic Simple Pendulum Gen3

Circular Motion Constant Radius Gen3

Circular Motion Constant Period Gen3

Blowdart collides with cart

A blowdart collides with a foam block affixed to a low-friction cart. Use floating tools to measure system momentum before and after the collision.

Ice skaters and a dog

A group of skaters sprints across the ice, followed by a dog. Use the stopwatch to measure the time for the skaters (and dog) to travel 5 meters.

Ping Pong Ball Cannon

This video shows a pingpong ball fired out of a vacuum cannon into a pop can. Use the ruler and stopwatch to measure the velocities of the ball and can before and after the collision.

Bow and Arrows

Two arrows, one fiberglass and one aluminum are launched from a small bow. Use the ruler and stopwatch to measure the speeds and accelerations.

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Ball rebounds from wall

An inflatable rubber ball bounces off a concrete wall. Use the ruler and stopwatch to make measurements

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Adrian's test code GenXXXX

Current prototype of Adrian's gen3.

Jared's test code GenXXXX

Current prototype of gen3.