Page 111 - PRAKTIS BELAJAR FISIKA SMA KELAS XII
P. 111
-27&6&2 #4-5&0 &7&8 *0-/6
1719=1>1;18 <9>C1B1> @1AC9;5< :9;1 ;535@1C1>>G1 =5=25>CD; BD4DC
I 1C1D I I C5A8141@ =541> =17>5C ,>CD; 9CD
@5A81C9;1> !-"!1 '1AC9;5< 25A=D1C1> @?B9C96 25A75A1; 41<1= 2941>7
() 45>71> ;535@1C1> v 41> =5=25>CD; BD4DC C5A8141@ =541> =17>5C
G1>7 B51A18 BD=2D ) @?B9C96 "535@1C1>>G1 41@1C 49DA19;1> =5>:149 4D1
;?=@?>5> G19CD v 41> v
( )
v
v
v
v
&1'&5
05:(9(5 9708(3 (:(; /,3029
:,81(+0 2,:02( 4;(:(5
),8.,8(2 +(3(4 4,+(5
4(.5,: +,5.(5 v +(5
4,4),5:;2 9;+;:
? ? (:(;
? ?
1<1= ;1BDB 9>9 @1AC9;5< 49@1>41>7 25A75A1; 41<1= 4D1 49=5>B9 B5?<18
?<18 141 4D1 @1AC9;5< C5A@9B18 G1>7 25A75A1; =1B9>7 =1B9>7 45>71>
;535@1C1> v B51A18 BD=2D ( @?B9C96 41> v B51A18 BD=2D ) @?B9C96 "?=@?>5>
)
(
;535@1C1> @141 BD=2D ( v C571; <DADB =541> =17>5C *5BD19 1CDA1> C1>71>
(
;1>1> 1A18 71G1 B51A18 BD=2D * @?B9C96 1G1 9>9 =5>G5212;1> @1AC9;5<
* 0 & . & , 25A75A1; =5<9>7;1A 25A1CDA1> @141 2941>7 (* 2941>7 B5:1:1:1A 71G1 9
- 6 - / & <19> @981; ;?=@?>5> 75A1; @141 BD=2D ) v C941; =5>41@1C 71G1 ;1A5>1
)
v B5:1:1A B589>771 1;1> 25A75A1; <DADB B51A18 v !149 75A1; @1AC9;5<
)
)
&78, *'&6 =5AD@1;1> @5A@14D1> 1>C1A1 75A1; =5<9>7;1A 41> 75A1; <DADB 25A1CDA1>
G1>7 1A18 ;535@1C1>>G1 B1<9>7 C571; <DADB '5A@14D1> ;54D1 75A1; B5@5AC9
9>9 =5>781B9<;1> <9>C1B1> 25AD@1 B@9A1< 1C1D 85<9;B
*52D18 @1AC9;5< 25A=1BB1 7A1= 41> 25A=D1C1> 25A75A1; =5=?C?>7 C571;
<DADB =541> =17>5C =+ 45>71> ;535@1C1> = B +5>CD;1> :1A9 :1A9 <9>C1B1>
@1AC9;5<
!5!"
9;5C18D9 7 ;7 " =+ M + 41> v = B
L
,+(5 4(.5,: >(5. +0:04);32(5
(8;9 309:802 +04(5-((:2(5 7(+( !1A9 :1A9 <9>C1B1> 141<18
(29,3,8(:68 7(8:02,3 ;5:;2
4,4),3622(5 7(8:02,3 7(8:02,3 R mv (0,04kg)(8m/s) 80m
3
>(5. ),84;(:(5 !3,/ 2(8,5( Bq (2,5 10 T)(1,6C)
0:; ,3,2:864(.5,: >(5. 2;(:
+(7(: +0(:;8 ;5:;2 4,5.65:863
4,4),5.2622(5 +(5
4,4-62;92(5 .(809 ,+(8
7(8:02,3 3,2:864(.5,: 7(51(5.
+(5 ),8),5:;2 7,89,.0 ,47(: *52D18 @1AC9;5< 25A=D1C1> <9BCA9; 41A9 ;51411> 491= 49@5A35@1C 45>71>
>(5. :(47(2 7(+( .(4)(8 +0
(:(9 ),8(+( +0 7;9(: 7,5,30:0(5 2541 @?C5>B91< V B525<D= =5=1BD;9 415A18 25A=541> =17>5C B5A171= +
5;2308 +,2(: ,5,=( $=099 A18 75A1; @1AC9;5< C571; <DADB 1A18 =541> =17>5C B589>771 @1AC9;5< 25A75A1;
=5<9>7;1A 45>71> :1A9 :1A9 3= +5>CD;1> =1BB1 @1AC9;5< 9CD
#81'*5 #
!5!"
'1AC9;5< 49@5A35@1C 45>71> 2541 @?C5>B91< V V =1;1 5>5A79 @?C5>B91< <9BCA9;>G1
25AD218 =5>:149 5>5A79 ;9>5C9; !9;1 1F1<>G1 491= 41> ;535@1C1> 1;89A>G1 v =1;1
"8(2:09 ,3(1(8 0902( ;5:;2 ,3(9 '