Physics: How smart are you?

Page 2 - Seeking answers? Join the AnandTech community: where nearly half-a-million members share solutions and discuss the latest tech.

statik213

Golden Member
Oct 31, 2004
1,654
0
0
Originally posted by: C6FT7
It's all about specifics, bob!

Ionization detectors use 1 microcurie of Americium-241 that emits alpha particles.
Photoelectric detectors use a gallium arsenide light emitting diode at 940 nanometers for simple detection.

So the way the question was phrased, alpha and IR are correct answers. :)

woohoo 10/10 then!
 

RedCOMET

Platinum Member
Jul 8, 2002
2,836
0
0
7/10

The wiring question and the smoke detector, and the question with the transformer screwed me.
 

IonYou

Banned
Jul 28, 2005
447
0
0
Doesn't FM have a longitudinal component? It's frequency is modulating so it is oscillating longitudinally as well isn't it?
 

hjo3

Diamond Member
May 22, 2003
7,354
4
0
Originally posted by: IonYou
Doesn't FM have a longitudinal component? It's frequency is modulating so it is oscillating longitudinally as well isn't it?
Only compression waves, like sound, oscillate longitudinally.
 

Gigantopithecus

Diamond Member
Dec 14, 2004
7,664
0
71
9/10, not familiar with the UK's wiring scheme.

20/20 on the English quiz.

17/20 on the 'Maths' quiz, but it took me too long to figure out a few of the problems, hehe.

 

7/10
Took physics, didn't care about it and forget it all when I entered the working world.
 

Armitage

Banned
Feb 23, 2001
8,086
0
0
9/10
The wiring question isn't physics - it's simply convention, and apparently not the same convention everywhere. Around here Live is black or red, neutral is white, ground is green or bare.
 

rgwalt

Diamond Member
Apr 22, 2000
7,393
0
0
8/10

I missed the wiring question, which is based on the british system. I also missed the question on longitudinal waves.

R
 

Chaotic42

Lifer
Jun 15, 2001
35,353
2,479
126
Originally posted by: rgwalt
8/10

I missed the wiring question, which is based on the british system. I also missed the question on longitudinal waves.

R

Same here.

What the hell is a wiring question doing on a physics test anyway?
 

MichaelD

Lifer
Jan 16, 2001
31,528
3
76
My distance in Newtons to the center of a Proton, in calories, has nothing to do with how many volts are generated when I think of a picture of a smoke detector with a fresh battery inside it.

Physics sucks ass.
 

AbAbber2k

Diamond Member
Mar 1, 2005
6,474
1
0
Wow I suck at physics. I was never big on science though. Chemistry was fun, but my best grades were always in literature and more abstract thinking classes.
 

Gigantopithecus

Diamond Member
Dec 14, 2004
7,664
0
71
Originally posted by: AbAbber2k
Wow I suck at physics. I was never big on science though. Chemistry was fun, but my best grades were always in literature and more abstract thinking classes.

Haha, literature is more abstract than any of the natural sciences?
 

dullard

Elite Member
May 21, 2001
26,196
4,869
126
Really stupid questions there.
[*]What do planet names have to to with physics? This isn't astronomy.
[*]Wire colors in England aren't the same everywhere in the world. Heck, for the most part there aren't wire color standards. I've wasted far too much time searching for color standards which don't exist for some of my experimental machines. There are suggestions and historical conventions, but for the most part there are no color standards.
[*]I thought there were two types of smoke detectors.
 

Jzero

Lifer
Oct 10, 1999
18,834
1
0
I got the wiring and smoke dectector questions wrong, although I stand by my answer for the smoke detector question, as there are iR smoke detectors.

I also got two other questions wrong, not because I suck at physics, but because I suck at arithmetic and didn't feel like using the calculator.