Density Lab B

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Density Lab B

Postby windu34 » July 18th, 2018, 9:57 am

Density Lab B: Participants compete in activities and answer questions about mass, density, number density, area density, concentration, pressure and buoyancy.

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Re: Density Lab B

Postby dxu46 » September 4th, 2018, 7:46 pm

It looks like this event is an impound event. Anyone know why?

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Re: Density Lab B

Postby UTF-8 U+6211 U+662F » September 4th, 2018, 7:49 pm

It looks like this event is an impound event. Anyone know why?
Where did you read that it was an impound event? Impound isn't mentioned in the rules or the schedule as far as I can see.

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Re: Density Lab B

Postby dxu46 » September 4th, 2018, 7:54 pm

It looks like this event is an impound event. Anyone know why?
Where did you read that it was an impound event? Impound isn't mentioned in the rules or the schedule as far as I can see.
Whoops, I read "self-schedule" as "impound" :oops:

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Re: Density Lab B

Postby Killboe » September 8th, 2018, 6:45 am

That moment when u just got put into this event and soinc has no info on it
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Re: Density Lab B

Postby Unome » September 8th, 2018, 6:58 am

That moment when u just got put into this event and soinc has no info on it
Read the rules and learn everything on there. If you finish the basics, get into fluid dynamics and stuff (or not because it's hard).
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Re: Density Lab B

Postby Killboe » September 8th, 2018, 3:47 pm

That moment when u just got put into this event and soinc has no info on it
Read the rules and learn everything on there. If you finish the basics, get into fluid dynamics and stuff (or not because it's hard).

Alright so I just studied up on this event for like 4 hours straight with my partner, and like, holy $#@!. I dive into one topic and that one topic has soooooooooo many things, i thought this was an easy event. I understand the Archimedes principle, the triangle thing (where you can find mass, density, and volume) and buoyancy. What I'm confused about is, it says on the rule sheet that the archimedes principle is really important, but it also says that we'll be tested on our knowledge of mass, density, number density, area density, concentration, temperature, pressure, and buoyancy. So to be honest, I don't know exactly what to study. Like I said, you dive into 1 of those topics, and there is so many things to cover. Literally, you just need to study "DENSITY" as an entire subject, and "MASS" as an entire subject. But that's wayyyy to many things to cover. So I have no clue what to study.
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Re: Density Lab B

Postby UTF-8 U+6211 U+662F » September 9th, 2018, 6:54 pm

Alright so I just studied up on this event for like 4 hours straight with my partner, and like, holy $#@!. I dive into one topic and that one topic has soooooooooo many things, i thought this was an easy event. I understand the Archimedes principle, the triangle thing (where you can find mass, density, and volume) and buoyancy. What I'm confused about is, it says on the rule sheet that the archimedes principle is really important, but it also says that we'll be tested on our knowledge of mass, density, number density, area density, concentration, temperature, pressure, and buoyancy. So to be honest, I don't know exactly what to study. Like I said, you dive into 1 of those topics, and there is so many things to cover. Literally, you just need to study "DENSITY" as an entire subject, and "MASS" as an entire subject. But that's wayyyy to many things to cover. So I have no clue what to study.
What do you mean by density and mass as entire subjects?

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Re: Density Lab B

Postby Killboe » September 10th, 2018, 11:06 am

Alright so I just studied up on this event for like 4 hours straight with my partner, and like, holy $#@!. I dive into one topic and that one topic has soooooooooo many things, i thought this was an easy event. I understand the Archimedes principle, the triangle thing (where you can find mass, density, and volume) and buoyancy. What I'm confused about is, it says on the rule sheet that the archimedes principle is really important, but it also says that we'll be tested on our knowledge of mass, density, number density, area density, concentration, temperature, pressure, and buoyancy. So to be honest, I don't know exactly what to study. Like I said, you dive into 1 of those topics, and there is so many things to cover. Literally, you just need to study "DENSITY" as an entire subject, and "MASS" as an entire subject. But that's wayyyy to many things to cover. So I have no clue what to study.
What do you mean by density and mass as entire subjects?
On the event rules it says it tests the knowledge of students on "mass, density," and etc.. That's extremely vague.
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Re: Density Lab B

Postby UTF-8 U+6211 U+662F » September 10th, 2018, 5:40 pm

Alright so I just studied up on this event for like 4 hours straight with my partner, and like, holy $#@!. I dive into one topic and that one topic has soooooooooo many things, i thought this was an easy event. I understand the Archimedes principle, the triangle thing (where you can find mass, density, and volume) and buoyancy. What I'm confused about is, it says on the rule sheet that the archimedes principle is really important, but it also says that we'll be tested on our knowledge of mass, density, number density, area density, concentration, temperature, pressure, and buoyancy. So to be honest, I don't know exactly what to study. Like I said, you dive into 1 of those topics, and there is so many things to cover. Literally, you just need to study "DENSITY" as an entire subject, and "MASS" as an entire subject. But that's wayyyy to many things to cover. So I have no clue what to study.
What do you mean by density and mass as entire subjects?
On the event rules it says it tests the knowledge of students on "mass, density," and etc.. That's extremely vague.
I dunno, it seems somewhat straightforward to me what topics are outside the scope of the event, e.g. rest mass and the Chandrasekhar limit. That's just a general overview for what the event covers. Take it with a grain of salt.

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Re: Density Lab B

Postby arv101 » September 13th, 2018, 3:36 pm

How are you guys gonna practice the lab section?
What did the thermometer say to the graduated cylinder?
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Re: Density Lab B

Postby Killboe » September 14th, 2018, 11:12 am

How are you guys gonna practice the lab section?

No clue.
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Re: Density Lab B

Postby John Richardsim » September 17th, 2018, 1:19 pm

I don't exactly understand why they removed calculations of molarity from 3.d.ii. At first I thought that it was to avoid moles, but they left the ideal gas law in 3.d.iii, so I don't really know.

Another thing about the rules I don't understand is why they limit the use of parts-per notation to million and billion. For example, if I wanted to make a question about something at a concentration of 5 parts-per-trillion, couldn't I just say a concentration of 0.005 parts-per-billion in order to get around this?
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Re: Density Lab B

Postby Killboe » September 17th, 2018, 5:01 pm

I don't exactly understand why they removed calculations of molarity from 3.d.ii. At first I thought that it was to avoid moles, but they left the ideal gas law in 3.d.iii, so I don't really know.

Another thing about the rules I don't understand is why they limit the use of parts-per notation to million and billion. For example, if I wanted to make a question about something at a concentration of 5 parts-per-trillion, couldn't I just say a concentration of 0.005 parts-per-billion in order to get around this?
'

I like how I spent like an hour studying how to calculate molarity and stuff like that and then I just see this comment. kmn


Since it's a brand new event I'm assuming they're making adjustments? The event rules are very vague and not very well made. Maybe they're making the event easier? Idk
Last edited by Killboe on September 17th, 2018, 5:03 pm, edited 1 time in total.
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Re: Density Lab B

Postby Unome » September 17th, 2018, 5:02 pm

I don't exactly understand why they removed calculations of molarity from 3.d.ii. At first I thought that it was to avoid moles, but they left the ideal gas law in 3.d.iii, so I don't really know.

Another thing about the rules I don't understand is why they limit the use of parts-per notation to million and billion. For example, if I wanted to make a question about something at a concentration of 5 parts-per-trillion, couldn't I just say a concentration of 0.005 parts-per-billion in order to get around this?
'

I like how I spent like an hour studying how to calculate molarity and stuff like that and then I just see this comment. kmn
Now you're prepared for when an event supervisor inadvertently asks questions about molarity :P
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