Hukum Pascal Fluida Statis

Mudah dan Aktif Belajar Fisika untuk Kelas XI 144 Gambar 6.8 Berkurangnya berat benda di dalam zat cair disebabkan oleh gaya ke atas yang dikerjakan oleh zat cair. Gambar 6.9 Perahu dapat terapung di atas air karena massa jenisnya lebih kecil dari massa jenis air. .:7I6=76HIL6CJDAIB:CL6 8B 7:F696996A6B6F 6B6GG6?:CG6F 8B H:CHI6C6L6H:6C:6H6GE69676HI 1 :H6=I 6F 8B B 1DAIB:76HIJDAIB:M6H86FL6C9EC96=6C 8B Q P B BG 6L6:6H6G6L6F8=B:9:G 6F B BG Q P B

4. Hukum Archimedes

.:7I6=76AD9HB76C9:C6CC:F686E:6GG:E:FHE696- G6A6C 76AD H:FG:7IH B:BA 7:F6H :BI96C 76AD 9B6GI6C :96A6B7:?6C6L6C7:FG6F- :F6H76AD66C7:FIF6C BG6ACL6 B:C?69 :CIFIH C96 6E66= L6C B:CL:7676C 7:FIF6CCL6 7:F6H 76AD H:FG:7IH :FIF6CCL6 7:F6H 76AD :H6 9B6GI6C : 96A6B 6F 9G:7676C DA:= 696CL6 6L6 H:6C : 6H6G 96F 6F 6L6 : 6H6G 96F 6F 6A E:FH6B6 9:H6=I DA:= - . G:=C6 6L6 H:FG:7IH 9C6B66C 6L6 F8=B:9:G 00 - . 7:F7ICL - - - . - :G6FCL6 6L6 F8=B:9:G H:FG:7IH 9CL6H66C 9:C6C E:FG6B66C C P :H:F6C6C 6L6 F8=B:9:G C B6GG6 ?:CG ;AI96 B E:F8:E6H6C F6JH6G BG JDAIB: ;AI96 L6C 9EC96=6CJDAIB: 7:C96 L6C H:F8:AIE B 6 7 air w 35 N 50 N 96CL6 6L6 : 6H6G 6L6 F8=B:9:G E696 G:7I6= 7:C96 L6C B6GI:96A6BM6H86FB:CL:7676C7:C9696E6HB:C6EICB:A6L6C 6H6I H:C:A6B

a. Benda Mengapung

6 =6CL6 G:766C 7:C96 L6C H:F8:AIE : 96A6B M6H 86F 7:C96 9G:7IHB:C6EIC 6A6B:6966CC7:F6H7:C966L6:6H6G96F M6H 86F .:86F6 B6H:B6HG 9HIAG6C G:766 7:FIH 1 P :H:F6C6C JDAIB:7:C96L6CH:F8:AIEB JDAIB:7:C96G:AIFI=CL6B -. 4 B:CIC?I6C 76=K6 GIE6L6 7:C96 B:C6EIC B6GG6?:CG7:C96=6FIGA:7=:8A96FE696B6GG6?:CGM6H86F C Contoh 6.4 Fluida 145 Gambar 6.10 Penyelam dan ikan-ikan dapat melayang di air. Tahukah Anda, mengapa ikan dan penyelam dapat melayang dalam air?

b. Benda Melayang

6 G:AIFI= 766C 7:C96 7:F696 9 96A6B M6H 86F C6BIC 7:C96 H:FG:7IH H96 G6BE6 B:CL:CHI= 96G6F H67IC B66 7:C96 96H66C B:A6L6C 6A6B:6966CG:B76C7:F6H7:C96G6B69:C6C6L6H:6C : 6H6G DA:= M6H 86F .:86F6 B6H:B6HG 96E6H 9HIAG6C G:766 7:FIH 1 P .:E:FH E696 - G:AIFI= 7:C96 B6GI : 96A6B M6H 86F G:=C6 JDAIB: 7:C96 G6B6 9:C6C JDAIB: M6H 86F L6C 9EC96=6C A:= 6F:C6 HI ICHI 6GIG B:A6L6C B6GG6 ?:CG 7:C96 96C B6GG6 ?:CG M6H 86F 696A6= G6B6

c. Benda Tenggelam

:C96 H:C:A6B H:F?69 6F:C6 6L6 7:F6H 7:C96 L6C A:7= 7:G6F 96FE696 6L6 H:6C : 6H6G :C96 L6C H:C:A6B 66C B:CL:CHI= 96G6FH67ICG:E:FHL6CH:FA=6HE696- .:86F6B6H:B6HG 96E6H 9HIAG6C G:766 7:FIH 1 A:=6F:C6JDAIB:7:C96L6CH:C:A6BG6B69:C6CJDAIB:M6H 86F L6C 9EC96=6C L6HI 96E6H 9HIAG6C 76=K6 P 69?6B6GG6?:CG7:C96A:7=7:G6F96FE696B6GG6?:CGM6H86F 7:C96 66C H:C:A6B Gambar 6.11 Batu tenggelam dalam air karena massa jenis batu lebih besar daripada massa jenis air. .:7I6=7:C96?67:F6969I96F67:F6HCL6 69HB76C996A6B6F7:F6H 7:C96H:FG:7IHG:DA6= DA6=B:C?69 6B6GG6?:CG6F 8B H:CHI6CA6= B6GG6?:CG7:C96H:FG:7IH BG 1 :F6H7:C969I96F6 + I96F6 :F6H7:C9696F + 6F 6F B 6L6H:6C:6H6GL6C7::F?6E6967:C96696A6= + I96F6 P + 6F P 6L6F8=B:9:G B BG Q P B 8B 6GG67:C96 I96F6 + BG G:=C6B6GG6?:CG7:C96696A6= 8B 8B 69B6GG6?:CG7:C96H:FG:7IH696A6=8B Contoh 6.5 benda fluida mengapung benda fluida melayang benda fluida tenggelam Ingatlah Mudah dan Aktif Belajar Fisika untuk Kelas XI 146 Gambar 6.12 Balon udara merupakan salah satu penerapan Hukum Archimedes. 6