Thermodynamics B/C
- Unome
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Re: Thermodynamics B/C
It definitely does say. Per rule 4.l, at least 20 minutes (which could mean anywhere from 20 minutes to, say, 45 minutes - depends on the length of the sessions at that tournament and number of teams per session, as well as how adept the event officials are).Pizzacats wrote:Do any of you guys know how long we get to take the test? The rule book didn’t say.
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Re: Thermodynamics B/C
I mean, I learned some thermodynamics. Those suggestions would be helpful, thanks!WhatScience? wrote:I can suggest tests..the thing is, you will have no chance taking them just using what you learned in your middle school science class...that's just not the way it works..you have to study thermodynamics first...then you can take testsbt03 wrote:Practice tests are great and all.
That is, when you find one that is out of the world to a normal physics student and then one which is relatively comparable to a physics/chemistry student that knows gas laws and basic thermodynamics.
TL;DR: Who can suggest a practice test that is reasonable for the 2018 B Division?
Random Fact 1: Water isn't wet. You can get wet by water, but water doesn't make water wet.
Random Fact 2: Is fire hot? Fire makes things hot, but can fire make fire hotter?
Random Fact 2: Is fire hot? Fire makes things hot, but can fire make fire hotter?
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Re: Thermodynamics B/C
A few pages back (maybe more) someone listed the topics in their binderbt03 wrote:I mean, I learned some thermodynamics. Those suggestions would be helpful, thanks!WhatScience? wrote:I can suggest tests..the thing is, you will have no chance taking them just using what you learned in your middle school science class...that's just not the way it works..you have to study thermodynamics first...then you can take testsbt03 wrote:Practice tests are great and all.
That is, when you find one that is out of the world to a normal physics student and then one which is relatively comparable to a physics/chemistry student that knows gas laws and basic thermodynamics.
TL;DR: Who can suggest a practice test that is reasonable for the 2018 B Division?
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Re: Thermodynamics B/C
Can we seal the edge of the lid of the thermo device with tape after putting the lid on while leaving the hole in the middle open? I'm specifically referencing rule 4.d I believe.
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Re: Thermodynamics B/C
Of course this is not an official clarification, but I see no reason why not. The 1.5cm hole in the middle is the key lid restriction (and the 15 cm limit and the 12cm depth).19sawickin wrote:Can we seal the edge of the lid of the thermo device with tape after putting the lid on while leaving the hole in the middle open? I'm specifically referencing rule 4.d I believe.
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Re: Thermodynamics B/C
I agree with Alex-RCHS.Alex-RCHS wrote:Of course this is not an official clarification, but I see no reason why not. The 1.5cm hole in the middle is the key lid restriction (and the 15 cm limit and the 12cm depth).19sawickin wrote:Can we seal the edge of the lid of the thermo device with tape after putting the lid on while leaving the hole in the middle open? I'm specifically referencing rule 4.d I believe.
On the same topic, has anyone else had a ton of trouble with heat escaping from this top hole? I've seen massive drops in temperature when this hole is completely open compared to when it's semi-plugged.
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Re: Thermodynamics B/C
I am facing the same problem of mass amounts of heat escaping from the water because of the open hole at the top.Justin72835 wrote:I agree with Alex-RCHS.Alex-RCHS wrote:Of course this is not an official clarification, but I see no reason why not. The 1.5cm hole in the middle is the key lid restriction (and the 15 cm limit and the 12cm depth).19sawickin wrote:Can we seal the edge of the lid of the thermo device with tape after putting the lid on while leaving the hole in the middle open? I'm specifically referencing rule 4.d I believe.
On the same topic, has anyone else had a ton of trouble with heat escaping from this top hole? I've seen massive drops in temperature when this hole is completely open compared to when it's semi-plugged.
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Cumberland Valley HS (2019-present)
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Re: Thermodynamics B/C
Anyone know the top device scores at MIT? I heard some top teams went for ice bonus
2019:
Mousetrap
Wright Stuff
Sounds
MIT 2018:
Heli: 1st
Mousetrap: 6th
--- Helicopters --- https://youtu.be/nn-x44gB0oA
--- Robot Arm --- https://www.youtube.com/watch?v=gmHcG-bar7w&t=76s
--- Wind Power --- https://www.youtube.com/watch?v=603F7vPUbrg&t=34s
Mousetrap
Wright Stuff
Sounds
MIT 2018:
Heli: 1st
Mousetrap: 6th
--- Helicopters --- https://youtu.be/nn-x44gB0oA
--- Robot Arm --- https://www.youtube.com/watch?v=gmHcG-bar7w&t=76s
--- Wind Power --- https://www.youtube.com/watch?v=603F7vPUbrg&t=34s
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Re: Thermodynamics B/C
How close are you guys getting to your actual final temperature with predictions at competitions? Some people are like 0.2 degrees off whereas others are 10-15 degrees off?
What did the thermometer say to the graduated cylinder?
"You may have graduated, but I have many degrees"
"You may have graduated, but I have many degrees"
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