Paintball Science Project

[momx3]

My son is doing a 7th grade science project. We need to find the mass and density of Brass Eagle, ZAP and Core paintballs. Does anyone know where I might find this info? Do you know anyone who has done a project like this before I might contact? I have tried the manufacturers and so far only Blaze was able to give me info.

[SIGSays]

momx3

momx3

that is so awsome... lol

anyway about paintball weight.. get the paintballs.. run into Giant or some local food store.. put it on the scale.. get the weights write it down and run!

or at schools they have scales... i am sure teachers won't mind student getting weights in before/after school..

[xmetal2001]

Do you mean the density of the fill?

If precision isnt your thing, then realize that paintballs are .68 caliber and do the math, take formula for volume of sphere and to find density do mass divided by volume.

Not the most precise method(because alot of the weight can be attributed to shell. You could always sepearte and dry the shell later and subtract that from the mass.

[Shawn at suny oswego]

here is some info, it might help.

Paint Brand Bore Match Bore Category Comments

32 Degrees: Competition .688-.692 Medium In consistent Size & hardness
32 Degrees: Team Colors .685-.687 Small In consistent Size & hardness
Brass Eagle .674-.705 Large Poor seams, often old
Brass Eagle Top Brass .689-.691 Medium Often old
Bullseye Super Turbo .689-.690 Medium East Coast brand
Diablo Blaze .685-.687 Small
Diablo Blitz / Comp Edge .689-.692 Medium
Diablo Hell Fire 0.684 Small
Diablo Inferno .684-.687 Small
Diablo Midnight .689-.692 Medium
Draxxus: All Types See Diablo. The name change was stupid!
Get Some Balls .688-.689 Medium Very Soft Shell, Strange "whipped" fill
Great American .688-.689 Medium Big Seam, Poor Gelatin
Great American Competition .688-.689 Medium
I&I Adrenaline .689-.691 Medium Same as Powerball
Java Classic .691-.693 Large
Java Supreme .688-.689 Medium
JT Maximum 0.686-.689 Small If you can get it fresh its good, Made by PMI
Kick'N Metalix .687-.688 Small
Kick'N Premium .689-.692 Medium
Kick'N Premium + .688-.689 Medium
Nelson Anarchy .686-.688 Small
Nelson Challenger .691-.693 Large Poor seams
Nelson Gold .691-.693 Large
Nelson Hot Spot .691-.693 Large Good Cheap Paint
Nitro Duck 1st Choice .692-.694 Large Soft Shell, often broken in cases
Paintball Junkies .688-.689 Medium
PMI / RP Big Ball .689-.690 Medium
PMI / RP Evil 0.686-.689 Small Great Heavy Paint
PMI / RP Evil Ultra 0.685-.687 Small Tournament Only Paint, very soft, very small
PMI / RP Gold .689-.690 Medium
PMI / RP Marbalizer 0.685-.688 Small
PMI / RP Premium .687-.689 Small
Point Blank: Kryptonite .689-.690 Medium Glows for about 15 min
Point Blank: Point Blank .688-.692 Medium Hard shell, ugly seam.
Point Blank: Steel Balls .689-.6920 Medium Too Soft & old
Power Ball .689-.692 Medium
Pro Ball 0.687-.691 Small
Pro Ball Lite .688-.689 Medium In consistent shell hardness
Pro Ball Platinum 0.687-.689 Small
Severe .690-.693 Large Nasty looking Gelatin shell
Sheridan Ball .689-.691 Medium Typically Old
Smart Paint .689-.691 Medium
TC Viper Venom .688-.691 Medium In consistent Size, Shell hardness
WDP Victory .686-.689 Medium In Consistent Quality
Worr Paint .690-.693 Large Worr quickly abandoned this paint. It sucked!
Zap Chronic 0.686-.688 Small Bright, Fluorescent, Heaviest, paint made!
Zap Primer .689-.692 Medium In consistent shell hardness
Zap Pro 0.688-.692 Medium
Zap Pro Sport .689-.690 Medium

http://www.mpaintball.com/Paint_and%20Barrel_Guide.htm

bryceeden just gave me this web-site today for a project im doing at college so credit him if this is helpful

[gamarada717]

You need to stop helping your son and make him do it himself...I didn't even get help when I was doing a 3rd grade project. Seriously though, he'll need to learn to do it himself. Hell, I remember when I cut my first Pinewood derby car for cub scouts, I didn't even get help with the bandsaw, and I had never touched one before.

[kosmo]

Well youre going to want the mean mass and density since each one is going to be slightly different. Weigh a nice round number like 100 of each, then divide by that number for mass. Then to get volume, fill a bucket or something up to the very top with water, put it in another larger bucket, and dump the 100 paintballs in the water. Then measure the water in a beaker and divide by 100 again and youll have volume. Then density is just mass/volume. Good luck with the project.