Page 158 - Fisika 3.cdr

Ketetapan Fisika SMA Kls. XII 151
Fisika Inti

Ketetapan Fisika
Besaran Simbol Nilai tetapannya
Kecepatan cahaya (c) 3 x 10 m/s
8
Konstanta gravitasi G 6,67 x 10 Nm /mg 2
2
-11
Tetapan Stefan-Botzmann ( ) 5,67 x 10 W/ K 4
-8
2
Tetapan Botzmann’s (k) 1,38 x 10 J/K
-23
Tetapan Avogadro N A 6,022 x 10 mol -1
23
Konstanta gas R = N k 8,31 J/mol K
A
Hukum Coulomb’s k = 8,99 x 10 N m /C 2
9
2
Muatan elektron l 1,60 x 10 C
-19
Permitivitas vakum 8,85 x 10 C/Nm 2
-12
Permeabilitas vakum 4 x 10 T m/A =
-7
1,26 x 10 T m/A
-6
Tetapan planck’s h 6,63 x 10 J s
-34
h = h/2 1,05 x 10 J s
-34
Massa atom u 1,66 x 10 kg = 931 MeV
-27
Massa elektron m 9,10939 x 10-31 kg = 5,94 x 10-4 u = 0,511 MeV
e
Massa neutron m 1,67500 x 10 kg = 1,008665 u = 939,57 MeV
-27
n
Massa proton m 1,67565 x 10 kg = 1,007267 u = 938,28 MeV
-27
p
Konversi Satuan
3
1. Massa 1 kg = 10 g = 8,64 x 104 s
3
1 g = 10 kg 1 tahun = 365 hari = 8,76 x 10 jam
-3
7
1 u = 1,66 x 10 kg = 5,26 x 105 min = 3,16 x 10 s
-27
1 ton = 1000 kg 6. Kecepatan 1 m/s = 3,60 km/h = 3,28 ft/s
2. Panjang 1 A = 10 m = 2,24 mi/h
-10
-9
1 nm = 10 m 1 km/h = 0,278 m/s = 0,621 mi/h = 0,911 ft/s
1 cm = 10 m = 0,394 in 1 ft/s = 0,682 mi/h = 0,305 m/s = 1,10 km/h
-2
-3
1 m = 10 km = 3,28 ft = 39,4 in 1 mi/h = 1,467 ft/s = 1,609 km/h = 0,447 m/s
3
1 km = 10 = 0,621 mi 60 mi/h = 88 ft/s
1 in = 2,54 cm = 2,54 x 10 m 7. Gaya 1 N = 0,225 lb
-2
1 ft = 0,305 m = 30,5 cm 1 lb = 4,45 N
13
1 pc (parsec) = 3,09 x 10 km 1 kg pada permukaan bumi = 2,2 lb = 9,8 N
-5
-6
3. Luas 1 cm = 10 m = 0,1550 in. 1 dyne = 10 N = 2,25 x 10 lb
2
2
-4
2
-4
2
-3
= 1,08 x 10 ft 2 8. Tekanan 1 Pa = 1 N/m = 1,45 x 10 lb/in. 2
-3
2
2
4
2
1 m = 10 cm = 10,76 ft = 1550 in 2 = 7,5 x 10 mm Hg
1 in = 6,94 x 10 ft = 6,45 cm 1 mm Hg = 133 Pa = 0,02 lb/in. 2
-3
2
2
2
2
= 6,45 x 10 m 2 1 atm = 14,7 lb/in. = 101,3 Pa = 30 in.Hg
-4
1 ft = 144 in. = 9,29 x 10 m = 760 mm Hg
2
-2
2
2
= 929 cm 2 1 bar = 105 Pa = 100 kPa
3
-5
3
-6
4. Volume 1 cm = 10 m = 3,35 x 10 ft 9. Energi 1 J = 0,738 ft lb = 0,239 cal
3
-4
-3
= 6,10 x 10 in 3 = 9,48 x 10 Btu = 6,24 x 1018 eV
1 m 3 = 10 cm = 10 L = 35,3 ft 3 1 kkal = 4186 J = 3,968 Btu
6
3
3
-3
3
4
= 6,10 x 10 in. = 264 gal 1 kal = 4,186 J = 3,97 x 10 Btu = 3,09 ft lb
1 liter = 10 cm = 10 m 1 ft lb = 1,36 J = 1,29 x 10 Btu
-3
3
3
-3
3
-19
= 0,264 gal 1 eV = 1,60 x 10 J
6
3
1 in. = 5,79 x 10 ft = 16,4 cm 1 kWh = 3,6 x 10 J
3
-4
3
-6
= 1,64 x 10 m 3 1 erg = 10 J = 7,38 x 10 ft lb
-7
-5
3
1 ft = 1728 in. = 7,48 gal 10. Daya 1 W = 1 J/s = 0,738 ft lb/s
3
-3
= 0,0283 m = 28,3 L = 1,34 x 10 hp = 3,41 Btu/h
3
1 gal = 231 in. = 0,134 ft = 1 ft lb/s = 1,36 W = 1,82 x 10 hp
-3
3
3
3,785 L 1 hp = 550 ft lb/s = 745,7 W
5. Waktu 1 jam = 60 min = 3600 s = 2545 Btu/h
1 hari = 24 jam = 1440 min