Science Question - Page 3

*Kage* · 09-12-2006, 03:50 PM

Heh, I remember when my Grade 9 Science teacher asked me the same question...

It was a prelude to a unit on classifying the properties of a substance...

SpeedDMN · 09-12-2006, 04:06 PM

See Kongo, when you explain it like that it all seems so simple....

**k0NG0** · 09-12-2006, 04:15 PM

Quote:

Originally Posted by SpeedDMN

See Kongo, when you explain it like that it all seems so simple....

I know. I call it the "New Deal of Physics". I plan on making millions of dollars on my idea. It must be dumbed down for the common folk, although I won't call it "dumbing it down" but probably "rewording physics for better understanding" or if I have eaten Greek "hoi polloi-ing physics". I shall be appearing on Dr. Phil soon.

JaGWiRE_abx · 09-12-2006, 05:09 PM

Quote:

Originally Posted by Kage

Heh, I remember when my Grade 9 Science teacher asked me the same question...

It was a prelude to a unit on classifying the properties of a substance...

I see. What was the answer? This is the pre-lude to the unit on classifying the properties of a substance too.

SpeedDMN · 09-12-2006, 05:15 PM

Quote:

Originally Posted by Kage

Heh, I remember when my Grade 9 Science teacher asked me the same question...

It was a prelude to a unit on classifying the properties of a substance...

I never got that question in school. Must be some physical property of jam that is only relevant in Canada.

JaGWiRE_abx · 09-12-2006, 05:19 PM

Quote:

Originally Posted by SpeedDMN

I never got that question in school. Must be some physical property of jam that is only relevant in Canada.

LOL. I am convinced all Public School teachers have a database of which they just all print out the same sheets from.

*Kage* · 09-12-2006, 06:18 PM

Quote:

Originally Posted by JaGWiRE

I see. What was the answer? This is the pre-lude to the unit on classifying the properties of a substance too.

For the purposes of the class, it should be thought of as a viscous liquid. It's temperature will have a great impact on its level of viscosity.

Don't remember what the exact answer was... I was in that class 4 years ago...

Quote:

Originally Posted by SpeedDMN

I never got that question in school. Must be some physical property of jam that is only relevant in Canada.

These types of questions were common in my science classes as preludes to new units. They make you think of the subject and maybe even do a little research outside of class.

Smurfer · 09-12-2006, 06:34 PM

Hi folks, I just couldn't help myself I love science questions and I have no answer for you...
This tid bit always makes me laugh and I'm sure it's been posted here before or I got it here I can't remember sorry for the hijack.

A retiring pChem (Physical Chemistry) professor was composing his last exam for a graduate course in statistical thermodynamics. Being a bit bored, and with a well kept and wry sense of humor, he set a single question on the sheet:

"Is Hell endothermic or exothermic? Support your answer with a proof."

He had little idea what to expect, or how to grade the results, but decided to reward any student who was able to come up with a reasonable and consistent reply to this query.

One "A" was awarded.

Most of the students wrote proofs of their beliefs using Boyle's Law or some variant. The top student, however, wrote the following:

"First, we postulate that if souls exist, then they must have some mass. If they do, then a mole of souls can also have a mass. So, at what rate are souls moving into hell and at what rate are souls leaving? I think that we can safely assume that once a soul gets to hell, it will not leave. Therefore, no souls are leaving. As for souls entering hell, let's look at the different religions that exist in the world today. Some of these religions state that if you are not a member of their religion, you will go to hell. Since there are more than one of these religions and people do not belong to more than one religion on average, we can predict that all people and all souls go to hell on average. With birth and death rates as they are, we can expect the number of souls in hell to increase exponentially. Now, we look at the rate of change in volume in hell. Boyle's Law states that in order for the temperature and pressure in hell to stay the same, the ratio of the mass of souls and volume needs to stay constant. Thus, there are two possible conditions:

1.If Hell is expanding at a slower rate than that rate at which souls enter Hell, then the temperature and pressure in Hell will increase until all hell breaks
loose.

2.Of course, if hell is expanding at a rate faster than the increase of souls in Hell, then the temperature and pressure will drop until Hell freezes over.

So which is it? If we accept the postulate given to me by Teresa during my freshman year, "That it will be a cold day in Hell before I sleep with you.", and take into account the fact that I still have not succeeded in having sexual relations with her, then number 2 cannot be true, and thus I am sure that Hell is exothermic and will not freeze.

The student received the only "A" given.

Edit: sorry it was incomplete

*Kage* · 09-12-2006, 06:36 PM

spookyload · 09-12-2006, 09:46 PM

Quote:

Originally Posted by XJ.

It is normally a liquid at RT. If you think not, try speading a block of concrete on your toast. Gels and other types of liquids are normally refered to 'non newtonian' fluids. These are a class of liquids with stange behaviors: http://en.wikipedia.org/wiki/Non-Newtonian_fluid

Lol! Do you have a degree in physics spooky?!

No, my degree is in professional aeronautics and my masters is in avaiation safety. Both required a lot of physics and chemistry. The real person to ask here is Izibo. He was a physics freak and helped me a lot here when I was taking my first physics class a few years back.

SpeedDMN · 09-12-2006, 10:24 PM

Quote:

Originally Posted by spookyload

No, my degree is in professional aeronautics and my masters is in avaiation safety. Both required a lot of physics and chemistry. The real person to ask here is Izibo. He was a physics freak and helped me a lot here when I was taking my first physics class a few years back.

Just the fact that several degree toting posters here don't have a definitive answer to this little quandry just reaffirms my belief that there really isn't one. Everyone is right in a way I think.

Kage, I understand the purpose behind the question if not a rock solid answer and I am all for it. Please don't misunderstand my little joke

*Kage* · 09-12-2006, 11:50 PM

lol No worries mate. I laughed when I read it.

*Bofinn* · 09-13-2006, 09:03 AM

I just found this:

Gel: semi-solid state with 2 continuous phases. Continuous phase of interconnected particles and/or macro-molecules intermingled with a continuous phase of liquid phase such as water.

Examples: jello, jam

XJ. · 09-13-2006, 02:48 PM

Quote:

Originally Posted by SpeedDMN

Just the fact that several degree toting posters here don't have a definitive answer to this little quandry just reaffirms my belief that there really isn't one. Everyone is right in a way I think.

Not to brag, but I do have the correct answer, I even backed it with a web reference in case someone thought I was making stuff up

SpeedDMN · 09-13-2006, 02:52 PM

I don't doubt your correct though they probably have a simpler explanation for a 9th grade science class.

09-12-2006, 03:50 PM	#31
Kage Man-Foe! Join Date: Nov 2004 Location: Fiery depths of Hell Posts: 3,613	Heh, I remember when my Grade 9 Science teacher asked me the same question... It was a prelude to a unit on classifying the properties of a substance... __________________
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09-12-2006, 04:06 PM	#32
SpeedDMN Silicon Avatar Join Date: Jan 2006 Location: Hyde Park, NY Posts: 2,927	See Kongo, when you explain it like that it all seems so simple.... __________________
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09-12-2006, 06:34 PM	#38
Smurfer Land of the Brave Join Date: Oct 2002 Location: W. Los Angeles, California Posts: 1,854	Hi folks, I just couldn't help myself I love science questions and I have no answer for you... This tid bit always makes me laugh and I'm sure it's been posted here before or I got it here I can't remember sorry for the hijack. A retiring pChem (Physical Chemistry) professor was composing his last exam for a graduate course in statistical thermodynamics. Being a bit bored, and with a well kept and wry sense of humor, he set a single question on the sheet: "Is Hell endothermic or exothermic? Support your answer with a proof." He had little idea what to expect, or how to grade the results, but decided to reward any student who was able to come up with a reasonable and consistent reply to this query. One "A" was awarded. Most of the students wrote proofs of their beliefs using Boyle's Law or some variant. The top student, however, wrote the following: "First, we postulate that if souls exist, then they must have some mass. If they do, then a mole of souls can also have a mass. So, at what rate are souls moving into hell and at what rate are souls leaving? I think that we can safely assume that once a soul gets to hell, it will not leave. Therefore, no souls are leaving. As for souls entering hell, let's look at the different religions that exist in the world today. Some of these religions state that if you are not a member of their religion, you will go to hell. Since there are more than one of these religions and people do not belong to more than one religion on average, we can predict that all people and all souls go to hell on average. With birth and death rates as they are, we can expect the number of souls in hell to increase exponentially. Now, we look at the rate of change in volume in hell. Boyle's Law states that in order for the temperature and pressure in hell to stay the same, the ratio of the mass of souls and volume needs to stay constant. Thus, there are two possible conditions: 1.If Hell is expanding at a slower rate than that rate at which souls enter Hell, then the temperature and pressure in Hell will increase until all hell breaks loose. 2.Of course, if hell is expanding at a rate faster than the increase of souls in Hell, then the temperature and pressure will drop until Hell freezes over. So which is it? If we accept the postulate given to me by Teresa during my freshman year, "That it will be a cold day in Hell before I sleep with you.", and take into account the fact that I still have not succeeded in having sexual relations with her, then number 2 cannot be true, and thus I am sure that Hell is exothermic and will not freeze. The student received the only "A" given. Edit: sorry it was incomplete Last edited by Smurfer : 09-12-2006 at 10:45 PM.
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09-12-2006, 06:36 PM	#39
Kage Man-Foe! Join Date: Nov 2004 Location: Fiery depths of Hell Posts: 3,613	__________________
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09-12-2006, 11:50 PM	#42
Kage Man-Foe! Join Date: Nov 2004 Location: Fiery depths of Hell Posts: 3,613	lol No worries mate. I laughed when I read it. __________________
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09-13-2006, 09:03 AM	#43
Bofinn I'm gettin' dizzy! Join Date: Jan 2004 Location: Chicagoland Posts: 11,035	I just found this: Gel: semi-solid state with 2 continuous phases. Continuous phase of interconnected particles and/or macro-molecules intermingled with a continuous phase of liquid phase such as water. Examples: jello, jam __________________ ---------- JimBo ----------- When in doubt, smack it!
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09-13-2006, 02:52 PM	#45
SpeedDMN Silicon Avatar Join Date: Jan 2006 Location: Hyde Park, NY Posts: 2,927	I don't doubt your correct though they probably have a simpler explanation for a 9th grade science class. __________________
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