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Physics ping pong ball launcher
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Physics ping pong ball launcher
Materials and Apparatuses
Physics: Ping Pong Ball Launcher Test Data
By: Johnny Tang
Date: March 19, 2014
2 Meters
Miss Miss Miss Miss Miss
Hit Miss Miss Miss Miss
4 Meters
Miss Miss Miss Miss Miss
Miss Miss Miss Hit Miss
6 Meters
Miss Miss Miss Miss Miss
Miss Miss Miss Miss Miss
8 Meters
Miss Miss Miss Miss Miss
Miss Miss Miss Miss Miss
Ping Pong Ball Launcher
Apparatuses:
- Drill
- Tape
- Glue
- Screwdrivers
- Ping pong balls
Materials:
- 6 wooden planks (1m x 20cm x 5cm)
- 1 cup holder
- 1 thin metal rod (50 cm long)
- 2 hooks
- 1 elastic band
By: Johnny Tang
For: Ms. Ting
Subject: SPH4U
Date: January 4, 2014
Research Summary - Designs
Parts and Labels
My research for a potential design of the ping-pong ball launcher has led to the following choices:
- Catapult – elastic tied to an arm which slings the ping pong ball out
- Batter – a swinging arm which strikes the ping pong ball
- Rubber Band Launcher – two posts hold down the ends of an elastic band which gets coiled back and released to sling shot the ping pong ball
A = vertical planks to support part B
B = horizontal plank for two purposes:
To stop the catapult arm when it reaches its release point
To support the elastic band as it stretches
C = elastic band, tied to the two hooks to give the catapult power to propel the ping-pong ball
D = wooden planks as foundational support
E = ping-pong ball holder
F = hooks drilled into the wooden planks to hold the elastic bands
G = catapult arm, made of a wooden plank
H = metal rod upon which the catapult arm rotates
J = wooden plank on which the second hook is drilled
Onwards!
Research Summary – Construction Methodology
Research Summary - Disadvantages
Research Summary - Advantages
My research has demonstrated that a catapult design may not be suitable for the ping pong launcher for the following reasons:
- The elastic band may not stretch far enough and/or may snap
- The metal rod may not rotate smoothly to facilitate the arm’s rapid rotation
- The cup holder may fall off or be displaced
My research has demonstrated that a catapult design would be most suitable for the ping pong launcher for the following reasons:
- Pulling on the catapult arm to load is easy and fast to reload
- A catapult can launch projectiles to great distances
- The specific launch distance can vary and be controlled
- A catapult is portable and easy to assemble and disassemble
1. Cut the wooden planks into desired sizes
2. Lay out two planks parallel, then erect two planks vertically upon them
3 Lay the plank in the middle of the two parallel planks as an arm of the catapult
4. Drill through the three planks and insert a metal rod
5. Glue horizontal planks to the parallel planks
6. Insert hooks onto planks
7. Glue ping-pong ball holder to the catapult arm
8. Tie the elastic band around the two hooks