cakupan (dimensi), besaran dan satuan di fisika
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Fisika
Nugroho Adi Pramononugnux@gmail.com
aravir-rose.blogspot.com
Thursday, September 4, 14
Cakupan Fisika
Thursday, September 4, 14
Cakupan Fisika
Sangat Besar (Semesta)
Thursday, September 4, 14
Cakupan Fisika
Sangat kecil (pecahan proton)
Sangat Besar (Semesta)
Thursday, September 4, 14
Thursday, September 4, 14
45 derajat perbesaran
1.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000
Thursday, September 4, 14
Satuan
untuk menyatakan kuantitas
Thursday, September 4, 14
Panjang
Thursday, September 4, 14
Panjang
m
Thursday, September 4, 14
Panjang Massa
m
Thursday, September 4, 14
Panjang Massa
m kg
Thursday, September 4, 14
Panjang Massa Waktu
m kg
Thursday, September 4, 14
Panjang Massa Waktu
m kg s
Thursday, September 4, 14
Panjang
• m, km, mm
• AU, tahun cahaya
• 12 inch= 1foot; 3 foot = 1yard
Thursday, September 4, 14
• inch (in) = 1000 thou (th)
• foot (ft) = 12 inches
• yard (yd)= 3 feet
• chain (ch)= 22 yards
• furlong (fur)= 10 chains
• mile (mi)= 8 furlongs
• league (lea)= 3 miles
Thursday, September 4, 14
• cable = 100 fathoms
• nautical mile = 10 cables
Thursday, September 4, 14
• fluid ounce (fl oz)
• gill (gi)
• pint (pt)
• quart (qt)
• gallon (gal)
Thursday, September 4, 14
Thursday, September 4, 14
Massa
• mg, gr, kg, lb
Thursday, September 4, 14
• grain (gr)
• drcahm (dcr)
• ounce (oz)
• pound (lb)
• stone (st)
• quarter (qtr)
• hundredweight (cwt)
• ton (t)
Thursday, September 4, 14
Waktu
• jiffy, ms, s.
Thursday, September 4, 14
Thursday, September 4, 14
Dimensi
Thursday, September 4, 14
Panjang Massa Waktu
m kg s
Thursday, September 4, 14
Panjang Massa Waktu
m kg s
[L]
Thursday, September 4, 14
Panjang Massa Waktu
m kg s
[L] [M]
Thursday, September 4, 14
Panjang Massa Waktu
m kg s
[L] [M] [T]
Thursday, September 4, 14
Turunan
• [kecepatan]=[L][T]-1
• [volume]=[L]3
• [kerapatan]=[M][volume]-1=[M][L]-3
• [percepatan]=[L][T]-2
Thursday, September 4, 14
Pengukuran
Thursday, September 4, 14
Ketidakpastian Pengukuran
Semua pengukuran yang kita lakukan tanpa pengetahuan tentang ketidakpastian menjadi tidak berarti
Thursday, September 4, 14
Penyajian hasil
Nilai pengukuran ± ketidakpastian
lebar meja = (5 ± .5) spidol, (7±1)remote, (8±.5)remote
Thursday, September 4, 14
Tak Berarti
Nilai pengukuran ± ketidakpastian
Thursday, September 4, 14
Tak Berarti
Thursday, September 4, 14
Penyajian hasil
10 ± 0.1
Thursday, September 4, 14
Penyajian hasil
Thursday, September 4, 14
Diameter Jarum
Thursday, September 4, 14
Diameter Jarum
Penggaris
Thursday, September 4, 14
Diameter Jarum
Thursday, September 4, 14
Diameter Jarum
Jarum
Thursday, September 4, 14
Diameter Jarum
Thursday, September 4, 14
Diameter Jarum
Jangka Sorong
Thursday, September 4, 14
Diameter Jarum
Jangka SorongMikrometer
Thursday, September 4, 14
Operasi
• Penjumlahan
• 10±0.1 + 9±0.1 = 19±0.2
• 10±0.1 - 9±0.1= 1±0.2
Thursday, September 4, 14
Operasi
• Penjumlahan
• x = y + z
• ∆x = ∆y + ∆z
Thursday, September 4, 14
Operasi
• Perkalian
• 10±0.1 * 10±0.1 = 100±2
•
Thursday, September 4, 14
Tugas
• Ukur berat badan anda
• Ukur panjang badan anda saat berdiri dan saat telentang, hitung selisihnya
Thursday, September 4, 14
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