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PERCOBAAN III
HUKUM HOOKE
KD 1.3. Menganalisis pengaruh gaya pada sifat elastisitas bahan
Tujuan :
1. Menyelidiki hubungan antara gaya dan pertaambahan panjang pegas
2. Menghitung konstanta pegas
.
A. Alat dan Bahan
1. Dasaer statif
2. Kaki statif
3. Batang statif pendek ( 2 buah )
4. Batang statif panjang ( 2 buah )
5. Balok pendukung
6. Beban 50 gram ( 4 buah )
7. Pegas spiral
8. Penggaris
9. Jepit penahan ( 2 buah )
B. Langkah kerja
1. Rangkailah statif seperti gambar
di samping
2. Gantungkan sebuah pegas, ukur
panjang pegas ( l0 = ........ cm )
3. Gantungkan beban 50 gram ( F = 0,5 N ),
lalu ukur panjang pegas
4. Ulangi langkah no. 3 dengan 2 beban,
3 beban dan 4 beban.Ukur panjang pegas tiap pertambahan beban
C. Data Percobaan
l0 = ........ cm = ......... m
Percobaan ke Beban ( F ) l ( m ) Δl = l - l0 (m) F/Δl
1 50 g = 0,5 N
2 100 g = 1 N
3 150 g = 1,5 N
4 200 g = 2 N
D. Analisis Data
1. Buatlah grafik hubungan antara F dan Δl
F (N)
Δl (m)
Nama :
Kelas :
2. Bagaimanakah bentuk grafik yang dihasilkan ? Jelaskan
.............................................................................................................................
.............................................................................................................................
E. Kesimpulan
1. Setiap kali ditambahkan beban pada pegas, maka panjang pegas ......................
.............................................................................................................................
2. Nilai F/Δl disebut ...........................................................................................

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Hukum hook

  • 1. PERCOBAAN III HUKUM HOOKE KD 1.3. Menganalisis pengaruh gaya pada sifat elastisitas bahan Tujuan : 1. Menyelidiki hubungan antara gaya dan pertaambahan panjang pegas 2. Menghitung konstanta pegas . A. Alat dan Bahan 1. Dasaer statif 2. Kaki statif 3. Batang statif pendek ( 2 buah ) 4. Batang statif panjang ( 2 buah ) 5. Balok pendukung 6. Beban 50 gram ( 4 buah ) 7. Pegas spiral 8. Penggaris 9. Jepit penahan ( 2 buah ) B. Langkah kerja 1. Rangkailah statif seperti gambar di samping 2. Gantungkan sebuah pegas, ukur panjang pegas ( l0 = ........ cm ) 3. Gantungkan beban 50 gram ( F = 0,5 N ), lalu ukur panjang pegas 4. Ulangi langkah no. 3 dengan 2 beban, 3 beban dan 4 beban.Ukur panjang pegas tiap pertambahan beban C. Data Percobaan l0 = ........ cm = ......... m Percobaan ke Beban ( F ) l ( m ) Δl = l - l0 (m) F/Δl 1 50 g = 0,5 N 2 100 g = 1 N 3 150 g = 1,5 N 4 200 g = 2 N D. Analisis Data 1. Buatlah grafik hubungan antara F dan Δl F (N) Δl (m) Nama : Kelas :
  • 2. 2. Bagaimanakah bentuk grafik yang dihasilkan ? Jelaskan ............................................................................................................................. ............................................................................................................................. E. Kesimpulan 1. Setiap kali ditambahkan beban pada pegas, maka panjang pegas ...................... ............................................................................................................................. 2. Nilai F/Δl disebut ...........................................................................................