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November 01, 2025, 06:23:45 am
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Author Topic: SM Exam 2 2009 Suggested Solutions.  (Read 33577 times)  Share 

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TrueTears

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Re: SM Exam 2 2009 Suggested Solutions.
« Reply #105 on: November 03, 2009, 07:37:19 pm »
Quote from: arthurk on November 03, 2009, 07:34:47 pm
I see u used x to refer to 2 different numbers in ur answer
Meh that was from the previous part, I labelled x on the diagram so hopefully the examiners can be smart enough to realise what x I worked out <_<
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NE2000

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Re: SM Exam 2 2009 Suggested Solutions.
« Reply #106 on: November 03, 2009, 07:55:50 pm »
I think it was unfortunate that if you take the answer came out to be 1296.49. Some people might have used various methods to approximate the answer thinking to the nearest metre is ok but the rounding may then have been wrong. The VCAA 2007 last calculator Q at least had the advantage in that it was only 2 sig figs that were required so you could sort of just guess-and-check and get the value out of the calc.
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jimmy999

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Re: SM Exam 2 2009 Suggested Solutions.
« Reply #107 on: November 03, 2009, 10:46:29 pm »
Yeah I remember reading in the 2007 examiner's report about how you could assume velocity to be constant after a point and so you could calculate the time that way. It's how I knew what to do for that question
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TonyZ

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Re: SM Exam 2 2009 Suggested Solutions.
« Reply #108 on: November 04, 2009, 11:56:16 pm »
how many marks am i going to lose if i forgot to calculate the distance that the car and bike travelled...
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TrueTears

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Re: SM Exam 2 2009 Suggested Solutions.
« Reply #109 on: November 04, 2009, 11:58:23 pm »
I think 1 mark. It's pretty much just the answer mark.

« Last Edit: November 05, 2009, 03:46:30 pm by TrueTears »
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NE2000

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Re: SM Exam 2 2009 Suggested Solutions.
« Reply #110 on: November 05, 2009, 09:09:17 am »
Pythagoras? You didn't need to use pythagoras to find the distance...
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TrueTears

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Re: SM Exam 2 2009 Suggested Solutions.
« Reply #111 on: November 05, 2009, 03:18:56 pm »
Quote from: NE2000 on November 05, 2009, 09:09:17 am
Pythagoras? You didn't need to use pythagoras to find the distance...
How else do you do it?
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NE2000

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Re: SM Exam 2 2009 Suggested Solutions.
« Reply #112 on: November 05, 2009, 03:24:19 pm »
Quote from: TrueTears on November 05, 2009, 03:18:56 pm
Quote from: NE2000 on November 05, 2009, 09:09:17 am
Pythagoras? You didn't need to use pythagoras to find the distance...
How else do you do it?

This is the distance that the car and the bike travelled in the first question right? Don't you just multiply your time by 20?
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TrueTears

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Re: SM Exam 2 2009 Suggested Solutions.
« Reply #113 on: November 05, 2009, 03:25:17 pm »
Quote from: NE2000 on November 05, 2009, 03:24:19 pm
Quote from: TrueTears on November 05, 2009, 03:18:56 pm
Quote from: NE2000 on November 05, 2009, 09:09:17 am
Pythagoras? You didn't need to use pythagoras to find the distance...
How else do you do it?

This is the distance that the car and the bike travelled in the first question right? Don't you just multiply your time by 20?
lol I thought he meant the last Q fuk
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TonyZ

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Re: SM Exam 2 2009 Suggested Solutions.
« Reply #114 on: November 05, 2009, 03:47:33 pm »
lol, for extended question 1e, if i leave the answers in wrong decimal places..would i lose 2 marks?...i think i might have written 7.90 and 43.61...
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jimmy999

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Re: SM Exam 2 2009 Suggested Solutions.
« Reply #115 on: November 05, 2009, 05:33:43 pm »
Quote from: TonyZ on November 05, 2009, 03:47:33 pm
lol, for extended question 1e, if i leave the answers in wrong decimal places..would i lose 2 marks?...i think i might have written 7.90 and 43.61...

They would only take off 1 mark. Pretty unfair to take off 2
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TonyZ

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Re: SM Exam 2 2009 Suggested Solutions.
« Reply #116 on: November 05, 2009, 05:37:05 pm »
lol..cos it's a 2-mark question and i am just afraid that it's a mark for each answer...
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meo

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Re: SM Exam 2 2009 Suggested Solutions.
« Reply #117 on: November 05, 2009, 07:51:22 pm »
go itute
soluions are there...
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Over9000

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Re: SM Exam 2 2009 Suggested Solutions.
« Reply #118 on: November 05, 2009, 07:57:54 pm »
Quote from: meo on November 05, 2009, 07:51:22 pm
go itute
soluions are there...

go VN

soluble ions are there...
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dav132

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Re: SM Exam 2 2009 Suggested Solutions.
« Reply #119 on: November 06, 2009, 03:14:47 pm »
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