Direct Measurement Video Library for Rotation
Videos shown here contain grids, rulers, frame counters and other overlays that allow students to make measurements directly from the videos. Students can use this data to answer questions and solve problems. For each video, sample questions are shown, and in some cases, sample lesson plan ideas.
To download the video, alt-click on the link and select:
"save linked file as..." (Firefox)
"download liked file as..." (Safari)
"save link as..." (Chrome)
Sliding and Rolling Ball
Download the QuickTime file: Video of a sliding and rolling ball (Quicktime Video 5.1MB Apr29 13) here.
Sample question: What is the coefficient of friction between the ball and the track surface?
Sample activity: Rolling and Sliding Ball
Marble Collides with Block
Download the QuickTime file: Marble collides with wood block (Quicktime Video 7.8MB Feb8 13) here.
Sample question: Is linear momentum conserved?
Sample question: Is angular momentum conserved?Sample activity: Conservation of Linear and Angular Momentum During a Collision
Disk accelerated by rocket motor
Download the QuickTime file: video of disk accelerated by rocket motor (Quicktime Video 733kB Jul9 12) here.
Sample question: Determine the average force provided by the rocket motor during the first two revolutions.
Bicycle wheel accelerated by weight
Download the QuickTime file: video clip of wheel accelerated by falling weight (Quicktime Video 1.4MB Jun4 12) here.
Sample question: Determine the rotational inertia of the bike wheel.