Page 162 - PRAKTIS BELAJAR FISIKA SMA KELAS XII

,63E29 6=6<DB@? 56?82? 6?6B8: <:?6D:< 6/ 4 ;E>=29 =:=:D2??H2 5:;25:<2? C6D6?829 <2=: C6>E=2
>6>2CE<: 526B29 36B>652? >28?6D C6B282> 5 =E2C A6?2>A2?8 52? ;E>=29 =:=:D2? <E>A2B2?
C636C2B 82ECC H2?8 D682< =EBEC D6B9252A 2B29 5:;25:<2? 5E2 <2=: C6>E=2
86B2<?H2 #2B: ;2B: =:?D2C2? 6=6<DB@? 52=2> >652? 6 <2G2D <E>A2B2? 5:82?D: 56?82? <2G2D H2?8
>28?6D D6BC63ED 252=29 M <6D632=2??H2 5E2 <2=: C6>E=2
2 4> ,63E29 DB2?C7@B>2D@B >6>:=:<: A6B32?5:?82? =:=:D2?
3 4> AB:>6B 52? C6<E?56B 28:2? C6<E?56B
4 4> DB2?C7@B>2D@B 5:9E3E?8<2? 56?82? =:>2 3E29
5 4> =2>AE 0 / H2?8 5:CECE? A2B2=6= #:<2 67:C:6?C:
6 4> DB2?C7@B>2D@B 52? =2>AE =2>AE >6?H2=2
&6?EBED 2B252H % :?5E<C: A252 <E>A2B2? ?@B>2= <E2D 2BEC AB:>6B?H2 252=29 M
252=29 2
2 C632?5:?8 56?82? =2;E A6BE3292? 7=E<C >28?6D 3
3 36B32?5:?8 D6B32=:< 56?82? =2;E A6BE3292? 4
7=E<C >28?6D 5
4 C632?5:?8 56?82? =2>2?H2 A6BE3292? 7=E<C 6
>28?6D !2>32D2? :?5E<D@B 52? <2A2C:D@B >2C:?8
5 36B32?5:?8 D6B32=:< 56?82? ;E>=29 =:=:D2? A252 >2C:?8 >6>:=:<: ?:=2: ! 52? #:<2 <6D:82
<E>A2B2? <@>A@?6? =:CDB:< D6BC63ED 5:9E3E?8 <2? C6B: 52?
6 C632?5:?8 56?82? A6B:@56 AED2B2? <E>A2B2?
5:36B: D682?82? 676<D:7 C636C2B / C652?8<2?
=E<C >28?6D:< H2?8 >6>@D@?8 C63E29 <E>A2B2? 7B6<E6?C: CE5ED B25 C >2<2
H2?8 D6B5:B: 2D2C =:=:D2? 36B<EB2?8 52B: R 03 :>A652?C: B2?8<2:2? @9>
N
>6?;25: ?@= 52=2> C6=2?8 G2<DE C6<@? 6C2B % 2BEC 676<D:7 B2?8<2:2?
:?5E<C: 52=2> <E>A2B2? 252=29 M D682?82? H2?8 >6=:?D2C: % 252=29 /
2 / D682?82? H2?8 >6=:?D2C: 252=29 /
3 / )6B?H2D22? H2?8 36?2B 252=29 M
4 / 2 52?
5 / 3 52?
6 / 4 52?
82B % >2<C:>E> H2?8 5:92C:=<2? 86?6B2D@B 5
>6?;25: 5E2 <2=: C6>E=2 H2?8 92BEC 5:=2<E<2? 6 52?
252=29
2 7B6<E6?C: AED2B2??H2 5:;25:<2? C6D6?829 <2=:
C6>E=2
3 A6B:@56 AED2B2??H2 5:;25:<2? C6D6?829 <2=:
C6>E=2

*?*+5*1 9.:<*7@**7 +.:24=< -.70*7 +.7*: -*7 4.:3*4*75*1 9*-* +=4= 5*<21*7 7-*
292H2 AED:9 H2?8 >6?82?5E?8 A2?;2?8 86=@>32?8 :<6D29E: >@5E=EC 6=2CD:C:D2C 52? >2CC2 ;6?:C

52B: ?> C2>A2: 56?82? ?> ;2DE9 A252 <:C: 8B2?:D R ' > 52? R <8 >
5:7B2<C: 56?82? 82B:C 4> #:<2 =2H2B 36B252 2 -6?DE<2? 46A2D B2>32D 3E?H: 52=2> 8B2?:D
A252 ;2B2< > 5: 36=2<2?8 <:C: 36B2A2<29 =632B 3 #:<2 7B6<E6?C: 3E?H: D6BC63ED !I 36B2A2
CA6<DBE> @B56 A6BD2>2 A2?;2?8 86=@>32?8?H2
6=@>32?8 2:B =2ED >6?H6323<2? A6B>E<22? 2:B ,63E29 >E2D2? D:D:< ( 5::<2D @=69 C6ED2C D2=: B:?82?
?2:< DEBE? 56?82? A6B:@56 56D:< #:<2 ;2B2< D2< 36B>2CC2 52? 5:82?DE?8 )@C:C: >E2D2? >6?;25:
2?D2B5E2 AE?42< 86=@>32?8 >6D6B 36B2A2<29 C6A6BD: A252 82>32B 2<:32D 252?H2 >652? =:CDB:<
G2<DE H2?8 5:A6B=E<2? 86=@>32?8 E?DE< >6?42A2: C6B282> &2CC2 >E2D2? $ 52? A6B46A2D2?
;2B2< >6D6B 8B2F:D2C:
E2 3E29 >E2D2? =:CDB:< 52? D6BA:C29 A252

;2B2< ) 2H2 :?D6B2<C: 2?D2B>E2D2? D6BC63ED 252=29
-6?DE<2?=29 36C2B 82H2 :?D6B2<C:?H2
2 ;:<2 ;2B2<?H2 5:;25:<2? ;2B2<?H2 5:;25:<2?
C6D6?829 <2=: C6>E=2 >E2D2??H2 D6D2A 52?
3 ;:<2 <65E2 >E2D2? >2C:?8 >2C:?8 >6?;25: 5E2
<2=:?H2 ;2B2<?H2 D6D2A (

>*5=*;2 !*<.:2 &.6.;<.: