Could You Pass 8th Grade Science?

[asandir]

it's not a good question but I'd go with D anyway

[Chai26]

jesus christ, this is damn hard (btw what age do you attend 8th grade?)

[theLuckyDragon]

In Romania, 14.

[Qurqirish Dragon]

Actually, Any value that is a defined constant has infinite precision. This is to allow the various rules for significant figures to come into play.
Any problem involving unit conversion is an example of this. For example:
Something is measured to be 100.1 feet in length. How many inches is this?
Obviously, it is 12 * 100.1 = 1201.2
By rules of significant digits, the answer would be rounded to 1200, if you said the 12 (obtained from the definition 12 inches = 1 foot) only had 2 significant digits.

Now, if you have to approximate a defined constant (such as the above mentioned pi ~ 3.14), the approximation now limits the precision of calculations.
Of course, the digits of pi, to any length, are only an approximation since it is an irrational number - transcendental even

[asandir]

you'd turn 13 here in Oz in year 8

[Chai26]

its much harder than i expected, maybe its juz that the books i study from sucks, the computer books in brunei still show that the pentium 2 is termed "Super Fast" at 400MHZ

[darknessfood]

46%, but i didn't understand more then the have of the question due to my english.My english is pretty okay, but not like that

[asandir]

certainly the language barrier would be the greatest, though I am concerned by chai's comment

[darknessfood]

Hehe, indeed

[Chai26]

and we all still use Windows DOS and use IBM (the very very very old one) and the Apple 1 right?

[darknessfood]

Yeah, TT does:P

[Chai26]

jesus, i feel so retarded...........

[darknessfood]

Ah, don't feel retarted, most people don't even know the stuff you do. Due to the fact that no one uses that ofcourse . Kidding ( don't hate me!!! )

[Chai26]

astounding saying darkness, i shall remember that

[Banedon]

Actually, Any value that is a defined constant has infinite precision. This is to allow the various rules for significant figures to come into play.
Any problem involving unit conversion is an example of this. For example:
Something is measured to be 100.1 feet in length. How many inches is this?
Obviously, it is 12 * 100.1 = 1201.2
By rules of significant digits, the answer would be rounded to 1200, if you said the 12 (obtained from the definition 12 inches = 1 foot) only had 2 significant digits.

Now, if you have to approximate a defined constant (such as the above mentioned pi ~ 3.14), the approximation now limits the precision of calculations.
Of course, the digits of pi, to any length, are only an approximation since it is an irrational number - transcendental even

That's the answer I was looking for when I set this question, more or less the same example, too. I'm...very surprised Corribus didn't get it I'm not sure how to make the question clearer though; it seems pretty clear to me. Maybe make it 'to how many significant figures do you know this 7?'.

Thanks for the answers, it'll help when setting an exam paper in the future.

[Chai26]

i simply guessed that one

[PhoenixReborn]

I did pass 8th grade science...do I actually have take the test?

[Chai26]

I did pass 8th grade science...do I actually have take the test?

yes! the fate of the free world lies on your shoulders!

[asandir]

my god I hope you jest Chai, about the computers I mean

[Chai26]

my god I hope you jest Chai, about the computers I mean

want me to send you a copy? i am NOT lying or playing around here.