SOAL OSN IPA PART 2
9th - 12th Grade
•10 Qs
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SOAL OSN IPA PART 2
Quiz
•
Education
•
9th - 12th Grade
•
Practice Problem
•
Hard
Siti Adawiyah
Used 313+ times
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
An echo sounder produces ultrasound of frequency. The ultrasound travels in water at a speed of 1.5 km/s.
What is the wavelength in water of ultrasound of this frequency?
16 m
0.063 m
63 m
36 m
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A javelin has a mass of 0.80 kg.
The javelin is released with 250 J of kinetic energy.
What is the speed of the jevelin?
630 m/s
25 m/s
18 m/s
13 m/s
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pada gambar di samping ini urutan perubahan energi adalah ..........
Energi listrik - energi kimia - energi kalor
Energi kimia - energi listrik - energi kalor
Energi listrik - energi kimia - energi cahaya
Energi kimia - energi listrik - energi cahaya
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sebuah rumah menggunakan 4 lampu pijar 25 W selama 10 jam/hari, sebuah TV 50 W dipakai selama 10 jam/hari. Sebuah setrika 300 W selama 4 jam/minggu. Jika 1 Kwh tarifnya Rp 300,00 dan biaya beban listriknya sebesar Rp 2000,00 /bulan. Biaya rekening listrik yang seharusnya di bayar setiap bulan (30 hari) adalah ...............
Rp 22.490,00
Rp 20.490,00
Rp 16.940,00
Rp 14.940,00
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perhatikan gambar berikut ini!
Dari gambar diatas, jika waktu yang dibutuhkan bandul bergerak dari A dampai ke C 0,4 sekon, maka besar frekuensi getaran yang dihasilkan adalah ..............
0,20 Hz
1,25 Hz
2,00 Hz
0,80 Hz
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Energi from petrol is used to operate an engine. The engine drives a generator, which produces electrical energy.
What is the overall efficiency of the process?
25%
30%
55%
83%
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