7/23/2019 Pra OSK Astronomi 2008 Kab Gresik

http://slidepdf.com/reader/full/pra-osk-astronomi-2008-kab-gresik 1/3

 TES SELEKSI PEMBINAAN OSN TINGKAT SMA KABUPATEN GRESIK 2010

MATERI UJI : ASTRONOMI

WAKTU : 120 MENIT

I. SOAL PILIHAN GANDA

1. Perputaran Bu! pa"a p#r#$n%a

$epert! perputaran &a$!n& %an&

'er&#%an&. A(!'at "ar! )en#ena

%an& "!$e'ut pre$!$! !n! a"a*a+...A. Peru'a+an 'entu( r#ta$! '!ntan&

"ar! ta+un (e ta+unB. Peru'a+an !(*!,. Peru'a+an -ua-a "an !(*!

D. Peru'a+an (##r"!nat '!ntan&

'!ntan& "ar! a'a" (e a'a"E. T!"a( a"an%a pen&aru+

2. Ra$! '!ntan& !n! "!&una(an $e'a&a!

penan"a /a(tu untu( eu*a!

(e&!atan 'er-#-#( tana "!

nu$antara. Ra$! '!ntan& %an&

"!a($u" a"a*a+....A. B!a Sa(t!B. L!ntan& Wa*u(u,. L!ntan& Keu(u$D. L!ntan& #(# Be*e(E. Sa&!tar!u$

. B!*a "!(eta+u! 1 $atuan a$tr#n#!

'ern!*a! 1345 6uta (4 untu( $apa!

"! Bu! -a+a%a Mata+ar! %an&

e!*!(! (e*a6uan 00.000 (7$

eer*u(an /a(tu ratarata

$e'e$ar....

A. Se(et!(aB. 8 "et!(,. 9 en!t "et!(D. 8 en!tE. 8 en!t 13 "et!(

. Pern%ataan 'er!(ut %an& 'enar

a"a*a+....A. !(a Bu*an +ar! !n! ter'!t pu(u*

18.004 e$#( +ar! a(an ter'!t pa"a

/a(tu %an& $aaB. D! Kutu' Utara4 $e*aa 'u*an u*!4

ata+ar! t!"a( perna+ ter'ena,. Pa"a $et!ap Bu*an 'aru $e*a*u

ter6a"! &er+ana Mata+ar!D. Bu! 'e*a+an $e*atan "a*a

Bu*an De$e'er en&a*a!

u$!n "!n&!nE. Ter6a"!n%a u$! "! Bu!

$e'a&a! a(!'at perputaran Bu!

pa"a p#r#$n%a

. Pa"a tan&&a* 'erapa(a+4 pu(u* 00.00

/a(tu ata+ar! 'er$e$ua!an "en&an

pu(u* 00.00 /a(tu '!ntan&;A. 2 Septe'erB. 21 un!,. 21 MaretD. 22 De$e'erE. T!"a( perna+ $aa4 (arena $e*a*u

a"a per'e"aan $e'e$ar en!t

5. Se'ua+ '!ntan& pa"a a*a +ar! !n!

ter'!t pu(u* 2.0. Dua 'u*an %an&

a(an "atan& <1 'u*an ter"!r! ata$ 0

+ar!=4 pu(u* 'erapa(a+ '!ntan& !n!

ter'!t "! *#(a$! pen&aat %an&

$aa;A. Pu(u* 0.0B. Pu(u* 13.0,. Pu(u* 2.5D. Pu(u* 00.0E. Pu(u* 2.0

9. A$en$!#re(ta '!ntan& > Or!#n!$

a"a*a+ 6a 1 en!t. Apa %an&

'!$a "!$!pu*(an tentan& '!ntan& !n!

pa"a 6a $!"er!$ 6a en!t;A. B!ntan& !n! erupa(an '!ntan&

neutr#nB. B!ntan& !n! e!*!(! #r'!t

&e#$ta$!#ner,. B!ntan& !n! ter'!t "ar! ara+ t!urD. Pa"a 6a $!"er!$ ter$e'ut4 '!ntan&

'e*u 'er(u*!na$! ata$E. Pa"a 6a $!"er!$ ter$e'ut4 '!ntan&

'era"a "! ara+ 'arat

8. Karena e*#n&a$! a($!un%a4

p*anet !n! +an%a ter*!+at "en&an

ata te*an6an& pa*!n& *aa $e(!tar 2

 6a $e'e*u ata+ar! ter'!t atau 2

 6a $ete*a+ ata+ar! ter'ena.

P*anet !n! a"a*a+...A. Mer(ur!u$B. ?enu$,. up!terD. Saturnu$E. Neptunu$

7/23/2019 Pra OSK Astronomi 2008 Kab Gresik

http://slidepdf.com/reader/full/pra-osk-astronomi-2008-kab-gresik 2/3

3. Per+at!(an &a'ar "!'a/a+ !n!@

B!ntan& pa*!n& teran& "! ra$! '!ntan&

!n! a"a*a+....A. Bete*ue$B. R!&e*,. Antare$D. R!&e*

(entauru$

E. M!#$a

10.Per+at!(an &a'ar "! 'a/a+ !n!@

#ra$! $e&!t!&a u$! pana$

<$uer tr!an&*e= "!'entu( #*e+

(et!&a '!ntan& teran& "! a$!n&

a$!n& ra$!4 %a!tu....A. Dene'4 A*ta!r4 ?e&aB. A*ta!r4 T+u'an4 ?e&a,. ?e&a4 P#*ar!$4 T+u'anD. P#*ar!$4 A*ta!r4 T+una'E. Dene'4 ?e&a S+a!p

11.Per+at!(an &a'ar "!'a/a+ !n!@ Ra$!

'!ntan& !n! "!(ena* (arena

"!"a*an%a ter"apat '!ntan& (utu'

Utara. Ra$! '!ntan& %an& "!a($u"

a"a*a+....A. B!& D!pperB. Ur$a M!n#r,. ,a$$!#pe!a

D. Her-u*e$E. ,ep+eu$

12.B!ntan& a"a*a+....

A. P*anet %an& 'eru(uran ra($a$a$e+!n&&a a(+!rn%a en6a"!

'!ntan&B. Ben"a an&&#ta tata $ur%a %an&

e!*!(! #r'!t e*!p$,. Ben"a *an&!t %an& apu

en&a"a(an rea($! nu(*!r "!

pu$atn%a

D. Ben"a *an&!t %an& "!putar! #*e+

'en"a *an&!t *a!nn%aE. T!"a( a"a 6a/a'an %an& 'enar

1.Se'ua+ te*e$(#p e!*!(! *en$a

#(u*er "an *en$a #'%e(t!) a$!n&

a$!n& "en&an pan6an& )#(u$ 0 -

"an 10 -. Pan6an& te*e$(#p untu(

pen&aatan tanpa a(##"a$!

a"a*a+....A. 120 -B. 180 -,. 00 -D. C pan6an& )#(u$ terpen"e(E. T!"a( "apat "!tentu(an (arena

(uran& !n)#ra$!1.Te*e$(#p Un!tr#n "! O'$erat#r!u

B#$$-+a e!*!(! pan6an& )#(u$

*en$a #'%e(t!) 100 . B!*a

pen&aatan "en&an te*e$(#p !n!

"!*a(u(an tanpa 'era(##"a$!4

'erapa(a+ per'e$aran 'a%an&an

%an& "!+a$!*(an '!*a en&&una(an

*en$a #(u*er "en&an pan6an& )#(u$

142 -;A. 120 (a*!B. 1200 (a*!,. 1894 (a*!D. 1124 (a*!

E. T!"a( "apat "!tentu(an (arena'er&antun& 6u&a pa"a (#n"!$!

*an&!t

1.Pa"a $uatu +ar!4 Bu*an ter'ena

$e(!tar ten&a+ +ar!. Pa"a )a$e

apa(a+ Bu*an (et!(a !tu....A. Bu*an 'aruB. Kuart!r a/a*,. PurnaaD. Kuart!r a(+!r

E. Bu*an $eten&a+

15.Se'ua+ '!nt!( ata+ar! <$un$p#t=

eper*!+at(an "!aeter $u"ut 0

"et!( 'u$ur. B!*a 6ara( Bu!Mata+ar!

10 6uta (4 "!aeter *!n!er '!nt!(

Mata+ar! t$' $e(!tar....A. 12.800 (B. 2.000 (,. 25.00 (D. 23.100 (

E. 9.00 (

19.Ter6a"!n%a fare "! Mata+ar! "apat

en!'u*(an....A. L!'ra$! Bu*anB. Ger+ana Mata+ar! t#ta*,. Gan&&uan e"an a&net Bu!D. Gan&&uan #r'!t Bu!E. B!nt!( &e*ap "! peru(aan

Mata+ar!

7/23/2019 Pra OSK Astronomi 2008 Kab Gresik

http://slidepdf.com/reader/full/pra-osk-astronomi-2008-kab-gresik 3/3

18.Berapa(a+ a&n!tu"# ut*a( $e'ua+

'!ntan& %an& e!*!(! a&n!tu"#

$eu 194 "an ter*eta( pa"a 6ara(

20 par$e-;A. 10B. 124,. 15

D. 194E. 20

13.An"a!(an "ua 'ua+ '!ntan& e!*!(!

a&n!tu"# $eu %an& $aa4 tetap!

$a*a+ $atu '!ntan& 10 (a*! *e'!+ 6au+

"ar! pa"a %an& *a!n4 'erapa(a+

per'e"aan a&n!tu"# a'$#*ut (e"ua

'!ntan& ter$e'ut;A. B. F

,. 24D. F 24E. 54

20.D!(eta+u! "ua '!ntan& a$!n&

a$!n& "en&an (e*a$ $pe(tru O

"an K. B!ntan& ana(a+ %an&

ean-ar(an *e'!+ 'an%a(

ener&!n%a pa"a "aera+ /arna

era+;A. B!ntan& (e*a$ K B. B!ntan& (e*a$ O,. Ke"ua '!ntan& ean-ar(an

$aa 'an%a(D. Ke"ua '!ntan& t!"a(

ean-ar(an ener&! pa"a

"aera+ era+E. T!"a( "apat "!$!pu*(an (arena

t!"a( "!(eta+u! teperatur

'!ntan&

II. a/a'*a+ "en&an 'enar@

1. Per+at!(an ta'e* "! 'a/a+ !n!.

B!ntan& M B ?1 F 24 F 2410 F 14302 F 40 F 542 F 54 F 42 040 045 04 F 241 2400 F 1400 F 0400 F 141

 Tentu(an:a. B!ntan& pa*!n& teran& "!*!+at ata <='. B!ntan& pa*!n& teran& "a*a p#tret )#t#&ra %an& $en$!t!) "! "aera+ '!ru <=-. B!ntan& pa*!n& pana$ "an pa*!n& "!n&!n <2= "an <=". B!ntan& pa*!n& 6au+ "an pa*!n& "e(at <2="an <=e. B!ntan& pa*!n& 'e$ar ra"!u$n%a <=

2. Dua 'ua+ '!ntan& epun%a! teran& a$!n&a$!n& 100 "an 10.000 $atuan. B!*a

'!ntan& pertaa 'era&n!tu"# F4 a(a a&n!tu"# '!ntan& (e"ua a"a*a+....<2=

. Se'ua+ '!ntan& %an& "!p!n"a+(an 6ara(n%a en6a"! $eten&a+ (a*! 6ara( $eu*a4

teran&n%a en6a"!... (a*! teran& $eu*a. <=

. Teperatur $e'ua+ '!ntan& '!*a epun%a! *u!n#$!ta$ L Mata+ar! "en&an ra"!u$

ra"!u$ Mata+ar! a"a*a+...(a*! teperatur Mata+ar!.

. Ra"!u$ '!ntan& pertaa 2 C ra"!u$ '!ntan& (e"ua. Teperatur a$!n&a$!n& '!ntan&

5000 K "an 10.000 K. Per'an"!n&an "a%a ra"!a$! '!ntan& peertaa ter+a"ap '!ntan&(e"ua a"a*a+....

5. Dua pe$a/at 'er&era( para*e* "an $eara+ ter+a"ap &ar!$ *!ntan& "! Bu!. Pe$a/at

pertaa ter'an& $epan6an& e(uat#r4 "an pe$a/at (e"ua $epan6an& 50#LU. Supa%a

(e"ua pe$a/at !tu $e*a*u 'era"a "! 'u6ur %an& $aa4 a(a per'an"!n&an (e-epatan

pe$a/at pertaa ter+a"ap pe$a/at (e"ua a"a*a+....