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DD03 Video Analysis of Projectile Motion. Larry Dukerich - Arizona State U & Dobson HS Dwain Desbien - Arizona State U & Chandler- Gilbert College. Video analysis software - a useful tool. Clip from Physics of Sports. Video analysis software - a useful tool. Slope = velocity.

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dd03 video analysis of projectile motion

DD03Video Analysis of Projectile Motion

Larry Dukerich - Arizona State U & Dobson HS

Dwain Desbien - Arizona State U & Chandler- Gilbert College

video analysis software a useful tool
Video analysis software- a useful tool

Clip from Physics of Sports

video analysis software a useful tool1
Video analysis software- a useful tool

Slope = velocity

Slope = acceleration

Graphs from VideoGraph - PAS

video analysis software
Video analysis software
  • Canned movies are OK, but…
    • They’re someone else’s idea of interesting motion.
    • Students don’t get chance to produce and examine parabolic motion on their own.
video capture then
Video capture - then
  • Expensive hardware requirements
    • fast computers with video cards
    • expensive, high-end VCR’s
  • Used to be difficult and tedious
    • frame by frame capture
    • dropped frames made analysis tricky
video capture now with imac
Video capture - now, with iMac
  • Alt 1: VHS and video capture box
    • Use low-cost iMac ($800) or USB G3 Mac
    • Standard VHS camera or VCR
    • MyVideo from Eskape Labs ($250)

www.eskapelabs.com

Avid Cinema software

usb video capture box
USB Video capture box

Output to USB port

Composite video signal from VCR or camera

video capture with imac dv
Video capture - with iMac DV
  • Alt 2: Digital video input
    • Digital camera and Firewire (IEEE 1394)
    • iMac DV ($1000)
    • iMovie software
digital video imac dv
Digital video - iMac DV

FireWire connector

physics 2nd quarter project
Physics - 2nd Quarter Project
  • Produce and analyze video of projectile motion.
    • Teams of 3 - 4 students
    • Done outside of class time
    • Required minimal teacher intervention
sample student movies
Sample student movies

Object of known length for calibration

sample student movies1
Sample student movies

Ashley & Lindsay - Girls’ soccer team

sample student movies2
Sample student movies

Garrett wanted to jump from the 2nd floor.

sample student movies3
Sample student movies

A boy and his dog

sample student movies4
Sample student movies

Not your typical basketball shot.

sample student movies5
Sample student movies

Restriction: no living thing may come to harm.

sample student movies6
Sample student movies

Crash and burn!