
puh 2
Quiz
•
Physics
•
11th Grade
•
Practice Problem
•
Medium

Darmono Wardoyo
Used 18+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Suatu mesin kalor menghasilkan usaha 2000 Joule dan membuang kalor sebanyak 5000 Joule dalam satu siklus. Efisiensi mesin tersebut adalah…
28,6 %
38,6%
48,6 %
58,6 %
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Mesin sebuah mobil mempunyai efisiensi 30%. Jika mesin tersebut menghasilkan usaha 10.000 Joule tiap siklus, berapa kalor yang dibuang oleh mesin setiap siklus ?
5000 J
6000 J
7000 J
8000 J
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Seutas tali yang panjangnya 8 m direntangkan lalu digetarkan. Selama 2 sekon terjadi gelombang seperti pada gambar berikut! Tentukan v.
2 m/s
4 m/s
6 m/s
8 m/s
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Seutas kawat bergetar menurut persamaan :
Jarak perut ketiga dari titik x = 0 adalah…..
7,0
7,2
7,3
7,5
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Seutas kawat yang panjangnya 100 cm direntangkan horizontal. Salah satu ujungnya digetarkan harmonik naik-turun dengan frekuensi 1/8 Hz dan amplitudo 16 cm, sedangkan ujung lain terikat. Getaran harmonik tersebut merambat ke kanan sepanjang kawat dengan cepat rambat 4,5 cm/s. Tentukan letak simpul ke-4 dan perut ke-3 dari titik asal getaran!
35 cm
45 cm
55 cm
65 cm
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Sebanyak 3 liter gas Argon bersuhu 27°C pada tekanan 1 atm( 1 atm = 105 Pa) berada di dalam tabung. Jika konstanta gas umum R = 8,314 J mol−1 K−1 dan banyaknya partikel dalam 1 mol gas 6,02 x 1023 partikel, maka banyak partikel gas Argon dalam tabung tersebut adalah.....
0,72 x 1023
0,75 x 1023
0,79 x 1023
8,0 x 1023
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Suatu gas dengan volume 0,5 m kubik, perlahan-lahan dipanaskan pada tekanan tetap 4 x 105 N/m2, sehingga volumenya menjadi 2 m3. Tentukan besar usaha yang dilakukan gas.
3 x 105
4 x 105
6 x 105
8 x 105
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