Direct Measurement Video Library for 2-Dimensional Motion
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)
Low friction puck slides across lab floor
Sample question 1: Determine the x-axis velocity.
Sample question 2: Determine the y-axis velocity.
Sample question 3: Use vector addition to find the direction the puck travels and compare this value to the angle when the puck passes over the protractor.
Bounced Tennis Ball
question: Determine the direction the ball is traveling just as it
leaves the floor when it bounces on the left side of the stage