Search found 97 matches

by wzhang5460
September 20th, 2017, 1:12 pm
Forum: 2018 Lab Events
Topic: Thermodynamics B/C
Replies: 857
Views: 123141

Re: Thermodynamics B/C

I thought that since you are using the same beaker for both the outside temp and insulated temp, the insulating properties of the beaker itself would cancel out. Let's say you have a plastic beaker, which is a better insulator than a glass one. Although the final temperature of the insulated beaker ...
by wzhang5460
September 19th, 2017, 4:36 pm
Forum: 2018 Lab Events
Topic: Thermodynamics B/C
Replies: 857
Views: 123141

Re: Thermodynamics B/C

I think there isn't an advantage of plastic or glass beakers as the beakers in the insulator and the beaker without the insulator are the same, so the insulating properties of the beaker cancel out. Correct me if I'm wrong but I don't think plastic or glass beakers will make a difference in score.
by wzhang5460
September 19th, 2017, 4:00 pm
Forum: Battery Buggy B
Topic: Build Idea
Replies: 2
Views: 1369

Re: Build Idea

vedeshy wrote:Do you think we could use a Leto mindstorms ev3 for this event.
The rules say what you can use. A microcontroller such as a Lego Mindstorms isn't allowed.
by wzhang5460
September 16th, 2017, 12:53 pm
Forum: 2018 Lab Events
Topic: Thermodynamics B/C
Replies: 857
Views: 123141

Re: Thermodynamics B/C

chalker wrote:
wzhang5460 wrote:Does the beaker's diameter have to be exactly 1.4 times the height? I found some that are a little bit more than 1.4
Looks carefully at the rules. ~ means approximately.
Ok, Thanks
by wzhang5460
September 16th, 2017, 12:09 pm
Forum: 2018 Lab Events
Topic: Thermodynamics B/C
Replies: 857
Views: 123141

Re: Thermodynamics B/C

Does the beaker's diameter have to be exactly 1.4 times the height? I found some that are a little bit more than 1.4
by wzhang5460
September 15th, 2017, 4:56 pm
Forum: 2018 Lab Events
Topic: Thermodynamics B/C
Replies: 857
Views: 123141

Re: Thermodynamics B/C

I'm pretty sure you can use plastic, in the rules it says a 250 ml beaker glass or plastic.

Maybe just find one that is "standard" 250 ml and plastic?
by wzhang5460
September 12th, 2017, 5:04 pm
Forum: Battery Buggy B
Topic: 3-D print battery buggy
Replies: 25
Views: 5605

Re: 3-D print battery buggy

rchand wrote:Is it a good idea to 3d print out the frame and base of my battery buggy?
It might be too heavy but it's worth a try! Make sure the infill is set low though. (10 to 15%)
by wzhang5460
September 12th, 2017, 2:22 pm
Forum: 2018 Lab Events
Topic: Thermodynamics B/C
Replies: 857
Views: 123141

Re: Thermodynamics B/C

Is the temperature of the water going to be in 1 degree increments? There are no specifications in the rules but I'm assuming they won't go to decimal places.
by wzhang5460
September 11th, 2017, 1:58 pm
Forum: 2018 Question Marathons
Topic: Thermodynamics B/C
Replies: 227
Views: 45494

Re: Thermodynamics B/C

Kavar wrote:
wzhang5460 wrote:D
Credits to Khan Academy lol.
I believe you are mistaken. The answer should be C if you cancel out the values correctly. Credits to Khan Academy ;) :D .
Sorry, I typed the wrong letter. Haha
by wzhang5460
September 7th, 2017, 6:19 pm
Forum: 2018 Question Marathons
Topic: Thermodynamics B/C
Replies: 227
Views: 45494

Re: Thermodynamics B/C

D
Credits to Khan Academy lol.

Who was the scientist who came up with the basic ideas of the Second Law of Thermodynamics?

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