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October 21, 2026, 12:31:47 am
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Author Topic: Physics 09  (Read 24223 times)  Share 

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vamsiaus

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Re: Physics 09
« Reply #15 on: June 09, 2009, 02:45:21 pm »
yeah i got 135 m
too
 for the value of h
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TrueTears

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Re: Physics 09
« Reply #16 on: June 09, 2009, 02:45:33 pm »
I think it was a very very easy exam, finished with about 35 mins to go.

Our teacher said A+ cut off might be around 85 out of 90
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dejan91

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Re: Physics 09
« Reply #17 on: June 09, 2009, 02:45:39 pm »
^Yeah that's what I got. I double-checked using both methods.

Anyone know about the LED question? Which one's turned off or stayed on?
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Damo17

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Re: Physics 09
« Reply #18 on: June 09, 2009, 02:46:10 pm »
Quote from: dekoyl on June 09, 2009, 02:44:34 pm
^ I got the same answer but I used a formula to find the time it took to reach the ground.

I used t=6s, found x which was 180m and the subtracted the 45m from 180m.

Quote from: dejan91 on June 09, 2009, 02:45:39 pm
^Yeah that's what I got. I double-checked using both methods.

Anyone know about the LED question? Which one's turned off or stayed on?

first 3 off, second 3 on
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TrueTears

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Re: Physics 09
« Reply #19 on: June 09, 2009, 02:46:20 pm »
Quote from: dejan91 on June 09, 2009, 02:45:39 pm
^Yeah that's what I got. I double-checked using both methods.

Anyone know about the LED question? Which one's turned off or stayed on?
it was OFF OFF OFF ON ON ON
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/0

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Re: Physics 09
« Reply #20 on: June 09, 2009, 02:47:07 pm »
If you lose 1 mark what is the probability that you can still get a 50.

Give your answer to 2 decimal places.
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TrueTears

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Re: Physics 09
« Reply #21 on: June 09, 2009, 02:48:11 pm »
Also the question which said "find how high the ball was above the top of the cliff" Worth 4 marks?  :-\ Thought it'd be worth like 2 marks lol.
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danieltennis

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Re: Physics 09
« Reply #22 on: June 09, 2009, 02:48:56 pm »
Quote from: TrueTears on June 09, 2009, 02:48:11 pm
Also the question which said "find how high the ball was above the top of the cliff" Worth 4 marks?  :-\ Thought it'd be worth like 2 marks lol.
45 m i think?
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vamsiaus

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Re: Physics 09
« Reply #23 on: June 09, 2009, 02:49:05 pm »
was ur answer 45 m
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Damo17

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Re: Physics 09
« Reply #24 on: June 09, 2009, 02:49:21 pm »
Quote from: TrueTears on June 09, 2009, 02:48:11 pm
Also the question which said "find how high the ball was above the top of the cliff" Worth 4 marks?  :-\ Thought it'd be worth like 2 marks lol.

I looked at the 4marks and said "Am I missing something here?"
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TrueTears

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Re: Physics 09
« Reply #25 on: June 09, 2009, 02:49:29 pm »
Quote from: daniel. on June 09, 2009, 02:48:56 pm
Quote from: TrueTears on June 09, 2009, 02:48:11 pm
Also the question which said "find how high the ball was above the top of the cliff" Worth 4 marks?  :-\ Thought it'd be worth like 2 marks lol.
45 m i think?
Yeah, took me around 3 lines to do it and I thought I must have done something wrong since it was worth 4 marks lols
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dejan91

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Re: Physics 09
« Reply #26 on: June 09, 2009, 02:49:37 pm »
Quote from: TrueTears on June 09, 2009, 02:46:20 pm
Quote from: dejan91 on June 09, 2009, 02:45:39 pm
^Yeah that's what I got. I double-checked using both methods.

Anyone know about the LED question? Which one's turned off or stayed on?
it was OFF OFF OFF ON ON ON

That's gonna KILL ME!!! I said the first one was ON... will I lose both marks for that or just one lol?
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TrueTears

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Re: Physics 09
« Reply #27 on: June 09, 2009, 02:50:15 pm »
You'll lose 1 mark.

funny how the whole question was worth 2 marks and there were 6 boxes to fill lol.
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dejan91

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Re: Physics 09
« Reply #28 on: June 09, 2009, 02:51:00 pm »
Ahkk well hopefully it's not 2 marks. And yeah Ig to 45m for that one.....4 marks wtf??

haha yeah worth 1/3rd each :P
« Last Edit: June 09, 2009, 02:52:40 pm by dejan91 »
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kenny17

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Re: Physics 09
« Reply #29 on: June 09, 2009, 02:51:12 pm »
i thought it was 45m because i dnt think u can use that formula unless its in parabola shape u had to also consider the part under the level of the cliff
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