Javascript Disabled Detected

You currently have javascript disabled. Several functions may not work. Please re-enable javascript to access full functionality.

Science quiz

Started by Guest_Mirai Naza , Jun 04 2006 09:42 PM

«
Prev

Next
»

Please log in to reply

981 replies to this topic

#201 Guest_Vibronater

Guest

Offline

Posted 16 July 2006 - 03:19 PM

Butterfly wings are covered with tiny scales, each a single color. Most of the colors are produced by pigments, but the beautiful iridescence of some butterflies results from a reflective microstructure on the scale's surface. Is that what you want?

0

Back to top

#202 Kiririn-shi

Hanyaa~

Dragon's Elite
7,352 posts

Offline

Reputation: 2

Neutral

Posted 16 July 2006 - 03:29 PM

Well, you are quite right but not most accurate. Actually for butterflies' colorful wings, they function like gratings with different periods that reflect different wavelengths.52. What is the biggest animal that has ever existed on Earth? (1 point)Score Board:sum41rocksandrolls-40Odorskeut- 17E�rendil- 13Pompous Pom-poms-13Amnesiac-12aschen-100 vert 0-9Monomer-9DVS_2006-8hackerx-7Mirai Naza- 5Escaler-3Simbird-3Kewne-2random dude-2simbot15-2lumba-1

0

Back to top

#203 Guest_Vibronater

Guest

Offline

Posted 16 July 2006 - 03:38 PM

now if your not messing with me I believe it's the Blue Whale.

0

Back to top

#204 Kiririn-shi

Hanyaa~

Dragon's Elite
7,352 posts

Offline

Reputation: 2

Neutral

Posted 16 July 2006 - 03:53 PM

Correct, there was no trap.53. What is the most electronegative element? (2 points)Score Board:sum41rocksandrolls-41Odorskeut- 17E�rendil- 13Pompous Pom-poms-13Amnesiac-12aschen-100 vert 0-9Monomer-9DVS_2006-8hackerx-7Mirai Naza- 5Escaler-3Simbird-3Kewne-2random dude-2simbot15-2lumba-1

0

Back to top

#205 Guest_Vibronater

Guest

Offline

Posted 16 July 2006 - 03:57 PM

Fluorine I believe is the most electronegative element.

0

Back to top

#206 Kiririn-shi

Hanyaa~

Dragon's Elite
7,352 posts

Offline

Reputation: 2

Neutral

Posted 16 July 2006 - 04:06 PM

Correct.54. What are the five greatest biological mass extinctions? (3 points)Score Board:sum41rocksandrolls-43Odorskeut- 17E�rendil- 13Pompous Pom-poms-13Amnesiac-12aschen-100 vert 0-9Monomer-9DVS_2006-8hackerx-7Mirai Naza- 5Escaler-3Simbird-3Kewne-2random dude-2simbot15-2lumba-1

0

Back to top

#207 Guest_Vibronater

Guest

Offline

Posted 16 July 2006 - 04:16 PM

the end of the Ordovician period, toward the end of the Devonian period, the end of the Permian period, toward the end of the Triassic period, and the end of the Cretaceous period. Did you want describtions?

0

Back to top

#208 Kiririn-shi

Hanyaa~

Dragon's Elite
7,352 posts

Offline

Reputation: 2

Neutral

Posted 16 July 2006 - 05:23 PM

Correct.55. According to classical mechanics, what is approximately the trajectory of Earth and other planets around the sun? (1 points)Score Board:sum41rocksandrolls-46Odorskeut- 17E�rendil- 13Pompous Pom-poms-13Amnesiac-12aschen-100 vert 0-9Monomer-9DVS_2006-8hackerx-7Mirai Naza- 5Escaler-3Simbird-3Kewne-2random dude-2simbot15-2lumba-1

0

Back to top

#209 Guest_Vibronater

Guest

Offline

Posted 16 July 2006 - 11:13 PM

well they go around the sun in the form of an ellipse.

0

Back to top

#210 Kiririn-shi

Hanyaa~

Dragon's Elite
7,352 posts

Offline

Reputation: 2

Neutral

Posted 17 July 2006 - 03:43 AM

Yes, I was just waiting for the name of the curve, no numbers implied ^_^

55. Who showed that gravitational mass and inertial masse are equal? (3 points)Score Board:sum41rocksandrolls-47Odorskeut- 17E�rendil- 13Pompous Pom-poms-13Amnesiac-12aschen-100 vert 0-9Monomer-9DVS_2006-8hackerx-7Mirai Naza- 5Escaler-3Simbird-3Kewne-2random dude-2simbot15-2lumba-1

0

Back to top

#211 Guest_A Love Supreme

Guest

Offline

Posted 17 July 2006 - 02:40 PM

Mmm i'm preety sure Newton thought about it, but it was Einstein that showed it

0

Back to top

#212 Kiririn-shi

Hanyaa~

Dragon's Elite
7,352 posts

Offline

Reputation: 2

Neutral

Posted 18 July 2006 - 02:19 AM

Correct.56. What is the color of liquid oxygen? (2 points)Score Board:sum41rocksandrolls-47Odorskeut- 17Pompous Pom-poms-16E�rendil- 13Amnesiac-12aschen-100 vert 0-9Monomer-9DVS_2006-8hackerx-7Mirai Naza- 5Escaler-3Simbird-3Kewne-2random dude-2simbot15-2lumba-1

0

Back to top

#213 Guest_A Love Supreme

Guest

Offline

Posted 18 July 2006 - 09:00 AM

it's kinda like a bluish color

0

Back to top

#214 Kiririn-shi

Hanyaa~

Dragon's Elite
7,352 posts

Offline

Reputation: 2

Neutral

Posted 18 July 2006 - 09:03 AM

Correct. Actually, it's light blue, just as the color of the sky.BTW, you are over me now <_<

57. Convert 0 Kelvin in Celsius degree. (1 point)Score Board:sum41rocksandrolls-47Pompous Pom-poms-18Odorskeut- 17E�rendil- 13Amnesiac-12aschen-100 vert 0-9Monomer-9DVS_2006-8hackerx-7Mirai Naza- 5Escaler-3Simbird-3Kewne-2random dude-2simbot15-2lumba-1

0

Back to top

#215 Guest_A Love Supreme

Guest

Offline

Posted 18 July 2006 - 09:54 AM

minus 273.15 degrees Celsius

0

Back to top

#216 Kiririn-shi

Hanyaa~

Dragon's Elite
7,352 posts

Offline

Reputation: 2

Neutral

Posted 18 July 2006 - 09:56 AM

Correct.58. Enounce the two fundamental principles of thermodynamics. (3 points)Score Board:sum41rocksandrolls-47Pompous Pom-poms-19Odorskeut- 17E�rendil- 13Amnesiac-12aschen-100 vert 0-9Monomer-9DVS_2006-8hackerx-7Mirai Naza- 5Escaler-3Simbird-3Kewne-2random dude-2simbot15-2lumba-1

Edited by Odorskeut, 18 July 2006 - 09:56 AM.

0

Back to top

#217 Guest_TranzMaster

Guest

Offline

Posted 18 July 2006 - 03:02 PM

The two principles of thermodynamics postulate that energy can be exchanged between physical systems as heat or work. They also postulate the existence of a quantity named entropy, which can be defined for any system.

0

Back to top

#218 Kiririn-shi

Hanyaa~

Dragon's Elite
7,352 posts

Offline

Reputation: 2

Neutral

Posted 18 July 2006 - 03:27 PM

It's correct but quite confusing.The first principle states that variation in intern energy is due to heat transfert and work.The second principle postulates the existence of entropy.59. To which kind of particles does Bose-Einstein statistics apply? (3 points)Score Board:sum41rocksandrolls-47Pompous Pom-poms-19Odorskeut- 17E�rendil- 13Amnesiac-12aschen-100 vert 0-9Monomer-9DVS_2006-8hackerx-7Mirai Naza- 5Escaler-3Simbird-3timvdp1-3Kewne-2random dude-2simbot15-2lumba-1

Edited by Odorskeut, 18 July 2006 - 03:28 PM.

0

Back to top

#219 hackerx

Ancient Dragon

Dragon's Elite
2,305 posts

Offline

Reputation: 6

Neutral

Posted 18 July 2006 - 03:42 PM

59. To which kind of particles does Bose-Einstein statistics apply? (3 points)

Bosons. For a minute I was confused because I was thinking of Bose-Einstein condensate which is a form of matter and not a particular type of particle. Fun stuff BTW. Due to the temps involved no real practical applications here on Earth but it could be fun for space weaponry. Hard Beam cannons anybody?

0

Posted Image <br />

<br />

<br />
<br />
Click the spoiler to view my current upload queue.<br />
<br />
<div><div id="spoiler"><div><input type="button" value="Show Spoiler!" style="width:100px;font-size:12px;margin:10px;padding:0px;" onclick="if (this.parentNode.parentNode.getElementsByTagName('div')['show'].style.display != '') { this.parentNode.parentNode.getElementsByTagName('div')['show'].style.display = ''; this.parentNode.parentNode.getElementsByTagName('div')['hide'].style.display = 'none'; this.innerText = ''; this.value = 'Hide Spoiler!'; } else { this.parentNode.parentNode.getElementsByTagName('div')['show'].style.display = 'none'; this.parentNode.parentNode.getElementsByTagName('div')['hide'].style.display = ''; this.innerText = ''; this.value = 'Show Spoiler!'; }" /><br />
<div id="show" style="background#c1f8ff; display: none; background-color:transparent; background-repeat:repeat; margin: 0px;border-style:solid;border-width:1px; padding: 4px; width:98%"><br />
<br />
Wii games.<br />
<br />
Tenchu : Shadow Assassins. 5 files. 4 complete.<br />
The House of the Dead 2 and 3 Return. 4 files. 3 complete.<br />
<br />

Back to top

#220 Kiririn-shi

Hanyaa~

Dragon's Elite
7,352 posts

Offline

Reputation: 2

Neutral

Posted 18 July 2006 - 03:57 PM

Haha

Since you seems good at statistical physics, next question should be easy too:60. Which statistics applies to fermions? (3 points)Score Board:sum41rocksandrolls-47Pompous Pom-poms-19Odorskeut- 17E�rendil- 13Amnesiac-12aschen-10hackerx-100 vert 0-9Monomer-9DVS_2006-8Mirai Naza- 5Escaler-3Simbird-3timvdp1-3Kewne-2random dude-2simbot15-2lumba-1

0

Back to top

#221 Guest_TranzMaster

Guest

Offline

Posted 18 July 2006 - 04:18 PM

Fermi-Dirac statistics

0

Back to top

#222 Kiririn-shi

Hanyaa~

Dragon's Elite
7,352 posts

Offline

Reputation: 2

Neutral

Posted 18 July 2006 - 04:39 PM

Yep, totally correct.61. Enounce the law of Wien. (2 points)Score Board:sum41rocksandrolls-47Pompous Pom-poms-19Odorskeut- 17E�rendil- 13Amnesiac-12aschen-10hackerx-100 vert 0-9Monomer-9DVS_2006-8timvdp1-6Mirai Naza- 5Escaler-3Simbird-3Kewne-2random dude-2simbot15-2lumba-1

0

Back to top

#223 Guest_Vibronater

Guest

Offline

Posted 18 July 2006 - 05:56 PM

Wien's Law states that objects of different temperature emit spectra that peak at different wavelengths.Hotter objects emit most of their radiation at shorter wavelengths; hence they will appear to be bluer . Cooler objects emit most of their radiation at longer wavelengths; hence they will appear to be redder. Also at any wavelength, a hotter object radiates more (is more luminous) than a cooler one.

0

Back to top

#224 Kiririn-shi

Hanyaa~

Dragon's Elite
7,352 posts

Offline

Reputation: 2

Neutral

Posted 19 July 2006 - 02:33 AM

Well, the idea is here. Actually, to be more concise, the law of Wien states that l*T=constante where l is the wavelength and T is the temperature.62. What is Brownian Motion? (2 points)Score Board:sum41rocksandrolls-49Pompous Pom-poms-19Odorskeut- 17E�rendil- 13Amnesiac-12aschen-10hackerx-100 vert 0-9Monomer-9DVS_2006-8timvdp1-6Mirai Naza- 5Escaler-3Simbird-3Kewne-2random dude-2simbot15-2lumba-1