Rockets - Video Analysis

Questions

1. What is the influence of reaction mass (water in the two-liter bottle) on the height a two-liter bottle will travel at a constant pressure?
2. What is the influence of reaction mass (water in the two-liter bottle) on the maximum velocity a two-liter bottle will travel at a constant pressure?

Materials

Rocket launcher

Procedures

Build a rocket as per the instrucitons in the Sourebook for Teaching Science.

See Kelly Castillo's students' rockets.

Enrichment - Explore with Rocket Simulator

Rocket Launch & Projectile motion Analyzed with VideoPhysics App

• Download the following Apps to your phone or pad
  • Video Physics (video analysis)
  • Inclinometer
  • Motion-X GPS
  • Wind Speed (annemometer)
  • AccelMeter (accelerometer)
• Record Data
  • Position the rocket launcher so that it is pointed vertically. Check using your inclinometer app in your mobile phone
  • Record the windseed using your mobile wind spee App
  • Record your precise GPS location using the GPS App
  • Using your accelerometer App in your mobile device, determine the maximum acceleration obtained by jerking your device quickly. Record in the table. By doing a video analysis of the rocket you can determine its acceleration and compare with your tests on your mobiel device.
  • Video the trajectory of the rocket.
    • Plot the position of the rocket at each frame
    • Plot position vs. time and velocity vs. time using Video Physics
    • Upload Graph of rocket launch generated by analyzing the flight in Video Physics to our shared dropbox folder.
  • Video the trajectory of a tennis ball tossed straight in the air
    • Plot the position of the rocket at each frame
    • Plot position vs. time and velocity vs. time using Video Physics
    • Upload Graph of rocket launch generated by analyzing the flight in Video Physics to our shared dropbox folder.

Discussion

Enter the following answers in the electronic quickwrite.

Projectile Motion