Science Quiz

[Banned]

Well,the rules are simple.The poster has to ask 5 questions based on Science or Maths.There is no limit to the extent of answer the question could have but try to give preference to questions with one-word answers.The subsequent poster isn't allowed to ask questions unless he replies to the questions asked in previous post.At least,he's required to answer 3 questions out of five.So,here we begin with easy ones..

I What is the name given to the substances which glow simply by being exposed to light?

II Who was/were the first scientist(s) to pass Alpha rays through a thin gold foil?

III Which of the three major types of ionizing radiations have the maximum penetration power?

IV What is the value of 1 faraday in coulombs?

V How would you relate the energy of a photon with the frequency of radiation?

[Leonidas The Lion]

No.1 is PHOSPHORESCENCE
No.3 is gamma rays
No.4 is 1 Faraday = 96500 Coulombs

[Blau&Gruen]

No. 2 are Ernest Rutherford, Hans Geiger, Ernest Marsden (1907).
No. 5 is E = hv (Photoelectric Effect).

[Leonidas The Lion]

Here are mine:
1)The value of π(to 6 digits)
2) In which organ of the body is the pineal gland?
3) Which organ is inflamed when one is suffering from Nephritis?
4) In which organ of the body is insulin produced?
5) How many bones in the human body?

[Blau&Gruen]

No. 2 is the brain.
No. 3 is the kidney.
No. 4 is the pancreas.
No. 5 is 206 to 350.

[Blau&Gruen]

What has come me to mind:
1) What does PCB stand in chimistry for?
2) To what does Sedna or 2003 VB12 refer to?
3) Who has discovered Lucy?
4) What is the arab word for "thank you"?
5) How do you call, xRy and yRz -> xRz ? (logic)

[chris_uk_83]

Damn.... Biology. I could have answered the physics ones without using Google, like some of those answers seem to be . I'll have a guess at your biology questions though:

2. Brain?
3. Kidney?
4. Pancreas?
5. 204?

I don't know what n is meant to be and my answers are guesses.

EDIT: damn posting at the same time as other people answering the same questions!

[Leonidas The Lion]

204?

Nope it is 206
BTW questions 1 is about pie.

[Blau&Gruen]

questions 1 is about pie.

The first one is about pie, is it?

[chris_uk_83]

Ah, that's a pi, not an n!

1. 3.14159

[chris_uk_83]

4) What is the arab word for "thank you"?

is that a science question?

I only post this because I have no idea of the answers to your questions without Googling them

I think we should make a rule: No Google (or other internet resource), it makes it too easy.

[Leonidas The Lion]

What is the arab word for "thank you"?

Shoukran.

[Blau&Gruen]

na'am (yes).

[Scorch]

Stickiednessded. Erm ... if this thread stagnates then I guess I'll un-sticky it, but for now ... consider it stuck.

[Leonidas The Lion]

Thank you Scorch.

na'am (yes).

afwan

[chris_uk_83]

Here are some becasue I technically answered questions, even though AbrahamShalom beat me to it

1. What would a stationary observer see if he were to watch someone fall into a black hole?
2. What flavours of quark make up a proton?
3. Apart from physics, what other subject did Isaac Newton publish a lot of papers on?
4. What was Rutherford trying to show when he passed those alpha particles through gold foil?
5. What is the Schrodinger equation? (for a bonus point what is it for?)

[Mathias]

4. What was Rutherford trying to show when he passed those alpha particles through gold foil?

The experiment showed that the plum pudding model of the atom was wrong and that atoms had a concentrated positive charge in the middle, instead of a positive soup in which the electrones were. I'm guessing that was what he tried to show, but I'm not sure though; the results could just be a coincidence.

[Leonidas The Lion]

2) There are six types of quarks, called up, down, strange, charm, bottom, and top.
5) A fundamental postulate of quantum mechanics, which states HΨ = EΨ. ie that the application of the hamiltonian operator to the wavefunction of a system will give the energy of that system as the eigenvalue of the function. Thus it relates the wavefunction to the allowed energies of the wavefunction.

[Ummon]

Well,the rules are simple.The poster has to ask 5 questions based on Science or Maths.There is no limit to the extent of answer the question could have but try to give preference to questions with one-word answers.The subsequent poster isn't allowed to ask questions unless he replies to the questions asked in previous post.At least,he's required to answer 3 questions out of five.So,here we begin with easy ones..

I What is the name given to the substances which glow simply by being exposed to light?

II Who was/were the first scientist(s) to pass Alpha rays through a thin gold foil?

III Which of the three major types of ionizing radiations have the maximum penetration power?

IV What is the value of 1 faraday in coulombs?

V How would you relate the energy of a photon with the frequency of radiation?

1) fluorescent
2) Rutherford
3) gamma
4) that's a complicated number
5) E=hn (n is for ni - or nu, if you are an ignorant non-greek-speaker )

They were mostly quite easy.

I see that it is "who comes first", anyhow, the answer phosphorescence, above, is wrong. Or either the question is misleading. http://en.wikipedia.org/wiki/Phosphorescence

Phosphorescence is a specific type of photoluminescence related to fluorescence. Unlike fluorescence, a phosphorescent material does not immediately re-emit the radiation it absorbs. The slower time scales of the re-emission are associated with "forbidden" energy state transitions in quantum mechanics. As these transitions occur less often in certain materials, absorbed radiation may be re-emitted at a lower intensity for up to several hours.

http://en.wikipedia.org/wiki/Fluorescence

Fluorescence is a luminescence that is mostly found as an optical phenomenon in cold bodies, in which the molecular absorption of a photon triggers the emission of another photon with a longer wavelength. The energy difference between the absorbed and emitted photons ends up as molecular vibrations or heat. Usually the absorbed photon is in the ultraviolet range, and the emitted light is in the visible range, but this depends on the absorbance curve and Stokes shift of the particular fluorophore. Fluorescence is named after the mineral fluorite, composed of calcium fluoride, which often exhibits this phenomenon.

Here are some becasue I technically answered questions, even though AbrahamShalom beat me to it

1. What would a stationary observer see if he were to watch someone fall into a black hole?
2. What flavours of quark make up a proton?
3. Apart from physics, what other subject did Isaac Newton publish a lot of papers on?
4. What was Rutherford trying to show when he passed those alpha particles through gold foil?
5. What is the Schrodinger equation? (for a bonus point what is it for?)

1) see him slow to quasi-immobility before he reaches the event horizon. Also, his ship breaks up due to tidal effects.
2) two up, one down.
3) religion
4) My physics course was 13 years ago! :wink:
5) the wave equation for electronic orbitals. To calculate the probability an electron is found (act as if it is) someplace in the orbital. It's also a mathematically incorrect result (given the way Schrodinger calculated it) which correctly foresees reality.

A sidenote, technically logics is not science. Nor is knowledge of arabic!

What has come me to mind:
1) What does PCB stand in chimistry for?
2) To what does Sedna or 2003 VB12 refer to?
3) Who has discovered Lucy?
4) What is the arab word for "thank you"?
5) How do you call, xRy and yRz -> xRz ? (logic)

2) near Oort nebula objects/planetoids.

[chris_uk_83]

@ Ummon

Nice answers, how much Google did you use? Be honest + rep by the way.

@ Leonidas

There may be 6 quark flavours but that doesn't actually answer the question (anyway, there are 12 if you count the antiquarks too, and what happens when you add gluons and gauge bosons?)