astrophysics, hows everyone finding it?
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mathematician
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- 14-06-2004 00:11
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- 14-06-2004 00:12
where you revising from
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mathematician
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- 14-06-2004 00:13
im finished astropphysics for definate
from my astrophysicds text book -
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- 14-06-2004 00:14
what you doing edexcel physics
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mathematician
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- 14-06-2004 00:16
yep
are u
im reisitin phy 1 and 3 tomos -
mathematician
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- 14-06-2004 00:26
(Original post by mathematician)
yep
are u
im reisitin phy 1 and 3 tomos
i thought there were just sizes of grains suspened in emulsion.
i cant b on the same ededxcel board then, cos that aint on ours -
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- 14-06-2004 00:29
have you noticed they always give you questions in the exam that arent even in the text book.
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mathematician
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- 14-06-2004 00:30
(Original post by Tennis)
have you noticed they always give you questions in the exam that arent even in the text book.
this text book of mine sums up everything
gotta go though duda
lata -
mathematician
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- 14-06-2004 00:32
(Original post by mathematician)
nope not ne more
this text book of mine sums up everything
gotta go though duda
lata -
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- 14-06-2004 00:33
what text book is that
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mathematician
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- 14-06-2004 00:34
(Original post by Tennis)
what text book is that
published from bath university -
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- 14-06-2004 00:36
what do you need to know about radio telescopes and the stuff that isnt mentioned on the syllabus
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mathematician
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- 14-06-2004 00:37
(Original post by Tennis)
what do you need to know about radio telescopes and the stuff that isnt mentioned on the syllabus
radio waves provides information on chemical properties of stars, and can also detect very dim stars -
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- 14-06-2004 00:39
you know they ask you the questions on formation of supernovae theyre so much you can write. how do you know the points they want.
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- 14-06-2004 05:42
(Original post by Tennis)
you know they ask you the questions on formation of supernovae theyre so much you can write. how do you know the points they want.
1) immense heat caused by gravitational collapse
2) e + p ----- > n
3) extra energy produces shockwave
4) all outer layers blown into interstellar space leaving a neutron core
no need to rite bout the formation of black holes and neutron stars ... tht will probably be the next question -
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- 14-06-2004 07:50
For Edexcel you need to know pixel and grain size.
Grain size is small, between 0.1 and 1 micro metres allowed in markscheme
Pixel size is larger, between 5 and 50 micro metres.
And for supernovae:
-Red giant collapses under gravity
-Forcing electrons into the nuclei forming a dense ball of neutrons
-Molecules hit this very dense structure and rebound
-At a very high speed
Is what I would write. -
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- 14-06-2004 09:30
The practice papers aren't reflective of what we're gona get in our exam remember - they're harder. They were designed to be done in 45 mins, the new ones are designed to be done in 30mins.
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- 14-06-2004 10:32
(Original post by mathematician)
astrophysics, hows everyone finding it?I lose so many marks on those questions.
Edit: Whoops, sorry, regurgigating Unit 4 Universe stuff. N/A ignore me.
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Updated: June 14, 2004
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