Golf Ball Task

User avatar
Unome
Moderator
Moderator
Posts: 4254
Joined: January 26th, 2014, 12:48 pm
Division: Grad
State: GA
Location: somewhere in the sciolyverse
Has thanked: 96 times
Been thanked: 36 times

Golf Ball Task

Post by Unome » September 3rd, 2018, 7:14 pm

See rule 4.b.iv

Obviously one would want to control the direction of the golf ball's movement carefully. Another challenge will be ensuring that the excess water doesn't cause problems.
Userpage
Chattahoochee High School Class of 2018
Georgia Tech Class of 2022

Opinions expressed on this site are not official; the only place for official rules changes and FAQs is soinc.org.

User avatar
ET2020
Member
Member
Posts: 67
Joined: April 16th, 2018, 11:35 am
Division: C
State: NY
Location: FM
Has thanked: 0
Been thanked: 0

Re: Golf Ball Task

Post by ET2020 » September 8th, 2018, 3:48 pm

How could you make the ball roll out of the top of the container? Presumably the ball would only be ~50% above the water, so the bottom of the ball would be kept below the lowest lip of the container, since the water would spill out of the container above that height. Does anyone see a way around this?
Fayetteville Manlius High School
2020 Events: Astronomy, Code, Dynamic, PPP

User avatar
TheSquaad
Member
Member
Posts: 164
Joined: March 18th, 2017, 5:14 pm
Division: Grad
Location: Somewhere over the rainbow
Has thanked: 0
Been thanked: 0

Re: Golf Ball Task

Post by TheSquaad » September 8th, 2018, 4:35 pm

ET2020 wrote:How could you make the ball roll out of the top of the container? Presumably the ball would only be ~50% above the water, so the bottom of the ball would be kept below the lowest lip of the container, since the water would spill out of the container above that height. Does anyone see a way around this?
You could put the golf ball on a tall buoy so it raises above the container lip before the water does

Brov
Member
Member
Posts: 3
Joined: September 9th, 2018, 7:17 pm
Has thanked: 0
Been thanked: 0

Re: Golf Ball Task

Post by Brov » September 9th, 2018, 7:26 pm

TheSquaad wrote:
ET2020 wrote:How could you make the ball roll out of the top of the container? Presumably the ball would only be ~50% above the water, so the bottom of the ball would be kept below the lowest lip of the container, since the water would spill out of the container above that height. Does anyone see a way around this?
You could put the golf ball on a tall buoy so it raises above the container lip before the water does
Is placing the golf ball on a floating device allowed? That would make this task a lot easier.

nicholasmaurer
Coach
Coach
Posts: 416
Joined: May 19th, 2017, 10:55 am
Division: Grad
State: OH
Location: Solon, OH
Has thanked: 1 time
Been thanked: 15 times

Re: Golf Ball Task

Post by nicholasmaurer » September 9th, 2018, 9:07 pm

Brov wrote:
TheSquaad wrote:
ET2020 wrote:How could you make the ball roll out of the top of the container? Presumably the ball would only be ~50% above the water, so the bottom of the ball would be kept below the lowest lip of the container, since the water would spill out of the container above that height. Does anyone see a way around this?
You could put the golf ball on a tall buoy so it raises above the container lip before the water does
Is placing the golf ball on a floating device allowed? That would make this task a lot easier.
4.b.iv says the golf ball must be "located in the same container" as the water - that appears to be the only restriction. Therefore a buoy would appear to be legal.
Assistant Coach and Alumnus ('14) - Solon High School Science Olympiad
Tournament Director - Northeast Ohio Regional Tournament
Tournament Director - Solon High School Science Olympiad Invitational

Opinions expressed on this site are not official; the only place for official rules changes and FAQs is soinc.org.

User avatar
PM2017
Member
Member
Posts: 522
Joined: January 20th, 2017, 5:02 pm
Division: Grad
State: CA
Location: Enjoying College! :D
Has thanked: 19 times
Been thanked: 2 times

Re: Golf Ball Task

Post by PM2017 » September 9th, 2018, 9:59 pm

nicholasmaurer wrote:
Brov wrote:
TheSquaad wrote:
You could put the golf ball on a tall buoy so it raises above the container lip before the water does
Is placing the golf ball on a floating device allowed? That would make this task a lot easier.
4.b.iv says the golf ball must be "located in the same container" as the water - that appears to be the only restriction. Therefore a buoy would appear to be legal.
In fact, something like this seems to be the only obvious way (actually there are other ways that I've thought of since, but I'd rather keep them to myself) for this task, since golf balls do not float on water. (They have a density of 1.26 grams/cc, so I don't believe that salty water would work either.)
West High '19
UC Berkeley '23

Go Bears!

User avatar
TheSquaad
Member
Member
Posts: 164
Joined: March 18th, 2017, 5:14 pm
Division: Grad
Location: Somewhere over the rainbow
Has thanked: 0
Been thanked: 0

Re: Golf Ball Task

Post by TheSquaad » September 12th, 2018, 7:23 pm

PM2017 wrote:
nicholasmaurer wrote:
Brov wrote:
Is placing the golf ball on a floating device allowed? That would make this task a lot easier.
4.b.iv says the golf ball must be "located in the same container" as the water - that appears to be the only restriction. Therefore a buoy would appear to be legal.
In fact, something like this seems to be the only obvious way (actually there are other ways that I've thought of since, but I'd rather keep them to myself) for this task, since golf balls do not float on water. (They have a density of 1.26 grams/cc, so I don't believe that salty water would work either.)
Salt water would also probably be illegal based on the faq for the water-addition task from last year

User avatar
PM2017
Member
Member
Posts: 522
Joined: January 20th, 2017, 5:02 pm
Division: Grad
State: CA
Location: Enjoying College! :D
Has thanked: 19 times
Been thanked: 2 times

Re: Golf Ball Task

Post by PM2017 » September 12th, 2018, 9:55 pm

TheSquaad wrote:
PM2017 wrote:
nicholasmaurer wrote:
4.b.iv says the golf ball must be "located in the same container" as the water - that appears to be the only restriction. Therefore a buoy would appear to be legal.
In fact, something like this seems to be the only obvious way (actually there are other ways that I've thought of since, but I'd rather keep them to myself) for this task, since golf balls do not float on water. (They have a density of 1.26 grams/cc, so I don't believe that salty water would work either.)
Salt water would also probably be illegal based on the faq for the water-addition task from last year
What I meant was salt being in the same container as the golf ball, and dissolving.
West High '19
UC Berkeley '23

Go Bears!

chessbucket
Member
Member
Posts: 23
Joined: September 5th, 2018, 4:34 pm
Has thanked: 0
Been thanked: 0

Re: Golf Ball Task

Post by chessbucket » September 17th, 2018, 7:40 am

What defines golfball? Does it have to be of a certain shape, mass, volume, etc? Certain golf balls are smaller or wider, and certain ones weigh more/less depending on the company.
2020: MIT Gravity Vehicle 2nd
2020: MIT Machines 6th

2019: Nationals Mission Possible 2nd
2019: NC Mission Possible 2nd
2019: MIT Mission Possible 4th

2018: NC Mission Possible 1st

User avatar
Unome
Moderator
Moderator
Posts: 4254
Joined: January 26th, 2014, 12:48 pm
Division: Grad
State: GA
Location: somewhere in the sciolyverse
Has thanked: 96 times
Been thanked: 36 times

Re: Golf Ball Task

Post by Unome » September 17th, 2018, 7:50 am

chessbucket wrote:What defines golfball? Does it have to be of a certain shape, mass, volume, etc? Certain golf balls are smaller or wider, and certain ones weigh more/less depending on the company.
I believe there's a generally accepted standard on golf ball mass and size limits - something like 4 cm diameter and some mass range equivalent to around 1.2-1.3 g/mL.
Userpage
Chattahoochee High School Class of 2018
Georgia Tech Class of 2022

Opinions expressed on this site are not official; the only place for official rules changes and FAQs is soinc.org.

Locked

Return to “Mission Possible C”

Who is online

Users browsing this forum: No registered users and 1 guest