1) List the 3-5 ideas you had (as bullet points) for the slow-motion camera, and what frame rate you in mind for eacm (e.g. 100fps):
shoot jello with a metal taco (420 fps)
rattail a water balloon (1000 fps)
pop a water balloon with a safety pin (1000 fps)
Shoot Jello with Metal Taco (750 fps) Objectives:
Determine how the resistive force of jello acts on a projectile
Does it act uniformly?
Does it depend on the speed of the projectile?
Materials:
Jello
Paper Clip
Rubber Band
High Speed Camera
Video Analysis Software
Procedure:
Make Jello
Shape paperclip in the basic form of a 2 dimensional taco
Set up high speed camera to watch the Jello
Place 'metal taco' in rubber band
Pull rubber band so it stretches a reasonable distance and is aimed at the center of the Jello
Release 'metal taco'
Vary the distance pulled distance to vary initial speed
Analyse videos frame by frame getting the 'metal taco's' speed and immediate acceleration
cut watermelon with rubber bands. Rap rubber bands around a watermelon. The watermelon should deform until a breaking point in which the rubber bands and chunks of watermelons would fly off in every direction. Calculate force applied, acceleration when cut, and possibly conservation of momentum. maybe use a second camera, filming from a vantage point perpendicular to the other camera. (420 fps) materials: 1000 rubber bands, 2 watermelons, cameras
Diabolo shooting up a string. Analyze string tension and friction. (500 fps) materials: diabolo, high speed camera
Rolling Objects with Backspin (500 fps)
Objectives:
Determine the effects of friction on a object with backspin
-How does the friction work when the ball is skipping and skidding?
-Is it easier to get a light ball or a heavy ball to come back?
Materials:
1) Big Marble
2) Small Marble
3) Uniform, even and smooth surface (table counter)
4) High Speed Camera
5) Something that will shoot the ball with the same amount of force and backspin every time (probably a clamping kind of motion)
controlled
Procedure:
1) Set up camera in place
2) Place small marble in the clamp
3) Clamp the ball down such that the ball shoots out with backspin
4) Repeat with large marble
5) Analyse the video footage to see when the object monmentarily comes to rest to measure the effects of friction
Team Name: Sloths with Jetpacks
Team Members:Dughi, Sam, and Ethan
Natland Note (4/15/13):
https://docs.google.com/document/d/1Eof5v1EQUp15DfAdG2E_C6wx-PZY-46eF-JdxdRtKUA/edit
1) List the 3-5 ideas you had (as bullet points) for the slow-motion camera, and what frame rate you in mind for eacm (e.g. 100fps):
Shoot Jello with Metal Taco (750 fps)
Objectives:
- Determine how the resistive force of jello acts on a projectile
- Does it act uniformly?
- Does it depend on the speed of the projectile?
Materials:Procedure:
Rolling Objects with Backspin (500 fps)
Objectives:
Determine the effects of friction on a object with backspin
-How does the friction work when the ball is skipping and skidding?
-Is it easier to get a light ball or a heavy ball to come back?
Materials:
1) Big Marble
2) Small Marble
3) Uniform, even and smooth surface (table counter)
4) High Speed Camera
5) Something that will shoot the ball with the same amount of force and backspin every time (probably a clamping kind of motion)
controlled
Procedure:
1) Set up camera in place
2) Place small marble in the clamp
3) Clamp the ball down such that the ball shoots out with backspin
4) Repeat with large marble
5) Analyse the video footage to see when the object monmentarily comes to rest to measure the effects of friction
RESOURCES
http://www.ehow.com/how_2258844_make-ruler-slingshot.html