Author Topic: ALL PHYSICS DOUBTS - POST HERE !!  (Read 228828 times)

Offline Priceless

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #495 on: May 10, 2010, 12:15:18 pm »
yup dc graph is straight .. __________________

*bump**straight line at bottom**bump* . is wen ac is rectified ..;)

who wud hv thot i wud actualy miss physics :P ::)

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Offline Shazizzzle

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #496 on: May 10, 2010, 12:17:02 pm »
Okay, let's get this straight.

DC: *straight line*

Diode: *bump* *straight line at bottom* *bump

Diode + Capacitor (smoothing): *bump* *smooth line to next bump (almost straight)* *bump*

Correct?
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6394

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #497 on: May 10, 2010, 12:18:02 pm »
<nov 92>
q1 c and d
ok lok at de image n i will ask de ques as u may nt hav the ques!!!!!
c) In a laboratory exp.,wat wud u do to ensure dat the balls remained in a straight line whisslt u made ur measurements??
u may draw a diag., or draw on fig.1.1, if u wish.
d) describe how u wud take ur measurements in a practical excercise.u may draw a diag.
part a and b i answerd

Offline ruruiw 60984

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #498 on: May 10, 2010, 12:21:27 pm »
Now, in p6  November 2008 Q 1 part d
why does the extension becomes greater, even though the mass and the material is the same , its just longer .?
isnt it the same mass .. means same weight of the load == same extension of spring  ... :S :S

Offline ruruiw 60984

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #499 on: May 10, 2010, 12:23:38 pm »
IN november 2008 p6 ,  Q1 d
Why does the extension become larger , although the load is of the same mass and material as the previous ,.?
isnt it the same mass == same weight == same extension ??

Offline Priceless

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #500 on: May 10, 2010, 12:26:52 pm »
<nov 92>
q1 c and d
ok lok at de image n i will ask de ques as u may nt hav the ques!!!!!
c) In a laboratory exp.,wat wud u do to ensure dat the balls remained in a straight line whisslt u made ur measurements??
u may draw a diag., or draw on fig.1.1, if u wish.
d) describe how u wud take ur measurements in a practical excercise.u may draw a diag.
part a and b i answerd

for c).....straightness is alwayz checked using a set square
 
n hw wud u take ur measure measurements....im nt sure  :-\
Don't say "God I have tooo many problems" but say "Problems I have God!"   Gud Luck 2 all 4 xams. Hope v all du well.....fingers crossed LOL

Offline red_911

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #501 on: May 10, 2010, 12:27:34 pm »
please can anyone tell me that do we have to place the test tube vertically and the wooden blocks on the top and bottom or horizontally and wooden blocks to the left and right in june 2009 paper 6 question 1(a)(3) ?

Offline thenewkid™

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #502 on: May 10, 2010, 12:29:40 pm »
Quote
d) describe how u wud take ur measurements in a practical excercise.u may draw a diag.
part a and b i answerd

you line up the beads between 2 blocks and then measure the distance between the blocks. then divide this by the no of beads
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Offline Priceless

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #503 on: May 10, 2010, 12:29:58 pm »
IN november 2008 p6 ,  Q1 d
Why does the extension become larger , although the load is of the same mass and material as the previous ,.?
isnt it the same mass == same weight == same extension ??

im sorry i did this last yr n i dnt remb da explanation :(
Don't say "God I have tooo many problems" but say "Problems I have God!"   Gud Luck 2 all 4 xams. Hope v all du well.....fingers crossed LOL

Offline Shazizzzle

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #504 on: May 10, 2010, 12:30:11 pm »
Hold on dude.
You've got a point there.
I am analyzing.

Wait, why does the extension reduce when the load is submerged? It's because of the pressure being applied in the upward direction due to the water?

Then, if the new load is longer, and is submerged, should have a lower extension?

But wait, they say it's too long to be submerged.
does that mean it is NOT submerged, or are we meant to suppose that it is, to answer? :S  ???

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Offline Priceless

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #505 on: May 10, 2010, 12:31:06 pm »
please can anyone tell me that do we have to place the test tube vertically and the wooden blocks on the top and bottom or horizontally and wooden blocks to the left and right in june 2009 paper 6 question 1(a)(3) ?

ds wz my ig ppr last yr n i hvnt lukd at da mark scheme but i dnt thnk it shud m8r cz me n my frndz did diff thngz n v still gt A*s...so i dnt thnk it m8rs :)
Don't say "God I have tooo many problems" but say "Problems I have God!"   Gud Luck 2 all 4 xams. Hope v all du well.....fingers crossed LOL

Offline red_911

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #506 on: May 10, 2010, 12:32:51 pm »
ds wz my ig ppr last yr n i hvnt lukd at da mark scheme but i dnt thnk it shud m8r cz me n my frndz did diff thngz n v still gt A*s...so i dnt thnk it m8rs :)
haha...okey .. thanks dude :D

Offline thenewkid™

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #507 on: May 10, 2010, 12:34:14 pm »
Quote
d) describe how u wud take ur measurements in a practical excercise.u may draw a diag.
part a and b i answerd

you line up the beads between 2 blocks and then measure the distance between the blocks. then divide this by the no of beads
diagrams not tht gd sry
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holtadit

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #508 on: May 10, 2010, 12:34:56 pm »
...

This is considered SPAM ruruiw 60984.

Do not repeat.
« Last Edit: May 10, 2010, 12:37:34 pm by Ari Ben Canaan »

6394

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #509 on: May 10, 2010, 12:38:05 pm »
@ thenewkid
this method is already given in part a and b
i think it shud be by using vernier callipers or micrometre gauge  <maybe>