a more creative way of squeezing your toothpaste
DESCRIPTION
A More Creative Way of Squeezing Your Toothpaste. By: Lester Foo Shi En 3P3 10 Jonathan Phua Jia Sheng 3P3 08. Check out the Video. Materials Used. Materials Used. Notepad. Materials Used. Books. Materials Used. Bottle with eraser attached. Materials Used. Cotton Twine & Thread. - PowerPoint PPT PresentationTRANSCRIPT
A More Creative Way of Squeezing Your Toothpaste
A More Creative Way of Squeezing Your ToothpasteBy: Lester Foo Shi En 3P3 10Jonathan Phua Jia Sheng 3P3 081Check out the Video
Materials UsedMaterials Used
NotepadMaterials Used
BooksMaterials Used
Bottle with eraser attachedMaterials Used
Cotton Twine & ThreadMaterials Used
Bottle with Cotton TwineMaterials Used
Bottles filled with waterMaterials Used
Ball with threadMaterials Used
Marker, Tape, ScissorsMaterials Used
Card BoxesMaterials Used
Toy CarMaterials Used
ToothpasteMaterials Used
ToothbrushMaterials Used
Line Tracking RobotMaterials Used
Track (for robot)Materials Used
KeyboardMaterials Used
ChairsMaterials Used
RampMaterials Used
Spray CanMaterials Used
Soccer BallMaterials Used
HamburgerEnergy Conversions1st StationGPE of the hamburger is converted into KE as it travels down the ramp
When the hamburger hits the ramp, the KE is transferred to the soccer ball, giving it KE
2nd StationHaving KE, the soccer ball drops off the table and continue moving, hitting the book
KE is transferred from the soccer ball to the book, causing the book to topple
3rd Station
As the 1st book topples, it creates a domino effect and it continues throughout
4th StationAs the KE is being transferred to the small blue book, it topples and lands onto a string (attached to the bottle and the end of the chair).
4th StationAs there is tension in the string, the bottle topples over, releasing the string attached to the ball which it is sitting on
5th Station
The ball is released after the bottle toppled and it hits the play button on the keyboard, starting the song London Bridge
5th Station
As the ball still has KE, it travels down the keys and hit the book, once again the domino effect is triggered6th Station
When the blue book topples, the KE is being transferred to the green toy car, causing it to move down the ramp7th Station
As there is tension in the string, the eraser is being pulled away from the wheel when the car hits the string, freeing the robotTheres a string attached from the bottle to an eraser which is in front of the robots wheel8th Station
The robot travels on the track and finally hits the book, which topples onto the bottle, releasing the cotton twine, which is attached to another bottle[not shown]9th Station
When the cotton twine is released, the bottle drops onto the toothpaste, thus squeezing itMistakes & ChallengesMistakesThe soccer ball went out of track and failed to start the domino effect
The gaps between the books were too far and some failed to continue the domino effectMistakesThe tension in the string tied to the water bottle was too small, allowing the book to land onto the string without triggering any other movements
The ball was not directly above the play button of the keyboard and no music was played even after the ball was released
ChallengesExternal forces like wind exerted a force on part of the domino chain and messed up our Rube Goldberg machine
Carelessness in our movements caused mess-ups in our preparationsChallengesWe did not manage to build our machine according to our original design due to miscalculations and misjudgments
We had to make use of common household objects to substitute those that we lackedThe End