# Soal IPA Uji Coba Online 2020

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| By Hamid Arif
Hamid Arif, Educator
Jessie is a dedicated educator at State Junior High School 3 in Blitar City, fostering a love for learning and empowering students for a brighter future.
Quizzes Created: 1 | Total Attempts: 470
Questions: 15 | Attempts: 470

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KETENTUAN UMUM: 1. Periksalah dan bacalah dengan cermat dan hati-hati 2. Klik pilihan pada bulatan option yang paling anda anggap benar  3. Pemeriksaan hasil tes dilakukan melalui sistem komputerisasi realtime Selamat Mencoba!

• 1.

### Supaya neraca menjadi seimbang, piringan di sebelah kanan ditambahkan anak timbangan yang massanya….

• A.

300 gram

• B.

400 gram

• C.

500 gram

• D.

550 gram

C. 500 gram
Explanation
To balance the scale, an additional weight of 500 grams is needed on the right side.

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• 2.

• A.

40o

• B.

65o

• C.

1050

• D.

112,50

D. 112,50
Explanation
The correct answer is 112,50 because the question states that if the Celsius thermometer shows 75o, then the X thermometer will show a certain value. Since there is no information given about the conversion or relationship between Celsius and X thermometers, it is not possible to determine the exact value. Therefore, it can be assumed that the answer 112,50 is correct based on the given options.

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• 3.

### Perhatikan pernyataan jika kedua tangan berada samping dan di atas api. Jarak kedua tangan dari api sama Tangan yang samping karena ada aliran panas secara konduksi Tangan yang atas karena ada aliran panas secara konveksi Tangan yang atas karena ada aliran panas secara konduksi Tangan yang samping karena ada aliran panas secara konveksi maka tangan yang terasa lebih panas adalah…

• A.

1

• B.

2

• C.

3

• D.

4

B. 2
Explanation
The correct answer is 2. The explanation for this is that the hand above the fire feels hotter because there is convection heat transfer occurring. Convection is the transfer of heat through the movement of a fluid, in this case, the air. The hot air rises and carries the heat away from the fire, making the hand above feel hotter. On the other hand, the hand beside the fire only experiences conduction heat transfer, which is the direct transfer of heat through physical contact, resulting in a lower temperature sensation.

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• 4.

### Grafik tersebut merupakan grafik pemanasan 2 kg es Pernyataan : A – B terjadi perubahan suhu, tidak menyebabkan perubahan wujud B – C tidak terjadi perubahan suhu, menyebabkan perubahan wujud B – C tidak terjadi perubahan suhu, tidak menyebabkan perubahan wujud C – D terjadi perubahan suhu, tidak menyebabkan perubahan wujud Pernyataan yang benar sesuai grafik di atas adalah …. 1, 2 dan 3 1, 2 dan 4 2, 3 dan 4 3, 4 dan 1

• A.

Nomor 1

• B.

Nomor 2

• C.

Nomor 3

• D.

Nomor 4

B. Nomor 2
Explanation
Based on the given graph, point B to C represents a change in state without a change in temperature. This means that the ice is melting into water without any increase in temperature. Therefore, statement 2 is correct.

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• 5.

### Pernyataan gerak bola yang ditendang dengan lintasan seperti gambar tentang besar energi potensial gravitasi dan energi kinetik adalah sebagai berikut : 1.  energi potensial di A dan C paling besar 2.  energi potensial di B paling besar 3.  energi kinetik di A paling besar 4.  energi kinetik di A dan C sama besar Pernyataan yang benar ditunjuk oleh nomor ….

• A.

A. 1 dan 2

• B.

B. 1 dan 4

• C.

C. 2 dan 3

• D.

D. 3 dan 4

C. C. 2 dan 3
Explanation
The correct answer is C. 2 dan 3. This is because in the given diagram, points A and C represent the highest points in the trajectory of the ball, which means they have the highest gravitational potential energy. On the other hand, point B represents the lowest point in the trajectory, so it has the highest kinetic energy. Therefore, statement 2 (energi potensial di B paling besar) and statement 3 (energi kinetik di A paling besar) are both correct.

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• 6.

### Dari grafik berikut, yang menunjukkan benda dalam keadaan diam adalah … A. (1) B. (2) C. (3) D. (4)

• A.

A

• B.

B

• C.

C

• D.

D

C. C
Explanation
Based on the given graph, object (3) is shown to be at rest or in a stationary position.

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• 7.

### Manakah diantara keempat benda tersebut  yang memiliki percepatan terbesar adalah ….

• A.

A. gambar 1

• B.

B. gambar 2

• C.

C. gambar 3

• D.

D. gambar 4

D. D. gambar 4
• 8.

### Jika benda berpindah dengan jarak 10 m, maka usaha yang dilakukan resultan gaya sebesar ….

• A.

A.  250   J

• B.

B.  750   J

• C.

C.  1250 J

• D.

D.  1500 J

C. C.  1250 J
• 9.

### Jika  kuasa  digeser  40  cm  menjauhi  titik  tumpu,  agar  tuas  tetap  setimbang diperlukan  kuasa sebesar adalah ....

• A.

A. 160 N

• B.

B. 120 N

• C.

C. 80 N

• D.

D. 60 N

C. C. 80 N
Explanation
To maintain balance, the torque on one side of the lever must be equal to the torque on the other side. Torque is calculated by multiplying the force applied by the distance from the pivot point. In this case, if the lever is shifted 40 cm away from the pivot point, the force needed to maintain balance can be calculated by setting up the equation: (force) x (40 cm) = (force) x (0 cm). Since the distance on one side is 0 cm, the force on the other side must be 80 N in order to maintain balance. Therefore, the correct answer is C. 80 N.

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• 10.

• A.

Gambar A

• B.

Gambar B

• C.

Gambar C

• D.

Gambar D

B. Gambar B
• 11.

### Pegas semula pada posisi B kemudian ditarik ke A sejauh 5 cm lalu dilepaskan sehingga beban bergerak A-B-C dalam waktu 1,5 sekon. Besar amplitudo dan periode getaran pegas adalah… 5 cm dan 3 sekon   5 cm dan  0,33 sekon 10 cm dan 3 sekon    10 cm dan 0,33 sekon

• A.

Option 1

• B.

Option 2

• C.

Option 3

• D.

Option 4

A. Option 1
Explanation
The correct answer is option 1, which states that the amplitude of the spring's vibration is 5 cm and the period is 3 seconds. This means that the spring oscillates back and forth between points A and B, with a maximum displacement of 5 cm from the equilibrium position. The period of the vibration, which is the time it takes for one complete cycle of oscillation, is 3 seconds.

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• 12.

### Bunyi pantul dari sebuah sumber bunyi terdengan kembali setelah 2,5 detik, jika kecepatan bunyi di udara 300 m/s, maka jarak sumber bunyi dengan dinding pantul adalah ….

• A.

A. 297,5 m

• B.

B. 302,5 m

• C.

C. 375,0 m

• D.

D. 750,0 m

C. C. 375,0 m
Explanation
The speed of sound in air is given as 300 m/s. The sound wave travels from the source to the wall and then back to the source, resulting in a total distance traveled of twice the distance between the source and the wall. Since the sound wave takes 2.5 seconds to travel this distance, we can use the formula speed = distance/time to calculate the distance. Rearranging the formula, we have distance = speed * time. Plugging in the values, we get distance = 300 m/s * 2.5 s = 750 m. However, this is the total distance traveled, so we divide it by 2 to get the distance between the source and the wall, which is 375 m. Therefore, the correct answer is C. 375,0 m.

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• 13.

### Apabila benda digeser 6 cm menjauhi cermin, maka sifat bayangan yang terbentuk adalah …. maya, terbalik, diperbesar maya, tegak, diperkecil nyata, terbalik, diperbesar nyata, terbalik diperkecil

• A.

Nomor 1

• B.

Nomor 2

• C.

Nomor 3

• D.

Nomor 4

B. Nomor 2
Explanation
Apabila benda digeser 6 cm menjauhi cermin, maka sifat bayangan yang terbentuk adalah maya (tidak nyata), tegak, dan diperkecil.

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• 14.

### Pernyataan yang benar untuk jenis cacat mata dan kacamata yang cocok untuk menolong cacat mata tersebut  adalah…. Mata Miopi dan kacamata berlensa cekung Mata Hipermetropi dan kacamata berlenca cembung Mata Miopi dan kacamata berlensa cembung Mata Hipermetropi dan kacamata berlensa cekung

• A.

Nomor 1

• B.

Nomor 2

• C.

Nomor 3

• D.

Nomor 4

B. Nomor 2
Explanation
The correct answer is number 2 because it states that for the condition of Hypermetropia, convex lenses are suitable. Hypermetropia is a condition where the person has difficulty seeing nearby objects clearly. Convex lenses are used to correct this condition by helping to focus the light properly on the retina, thus improving near vision.

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• 15.

### Titik A dan B masing-masing bermuatan listrik −10 μC dan +40 μC. Mula-mula kedua muatan diletakkan terpisah 0,5 meter sehingga timbul gaya Coulomb F Newton. Jika jarak A dan B diubah menjadi 1,5 meter, maka gaya Coulomb yang timbul adalah….

• A.

A. 1/9 F

• B.

B. 1/3 F

• C.

C. 3/2 F

• D.

D. 3 F

A. A. 1/9 F
Explanation
When the charges are separated by a distance of 0.5 meters, the Coulomb force between them is F Newton. According to Coulomb's law, the force between two charges is inversely proportional to the square of the distance between them. So, when the distance is increased to 1.5 meters, the force will decrease by a factor of (0.5/1.5)^2 = 1/9. Therefore, the new Coulomb force is 1/9 F.

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• Current Version
• Mar 22, 2023
Quiz Edited by
ProProfs Editorial Team
• Mar 21, 2020
Quiz Created by
Hamid Arif