Try Out Fisika Smp/Mts Tahun 2012/2013 By Dun-soft (Part 2)

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| By Dzikir
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Dzikir
Community Contributor
Quizzes Created: 2 | Total Attempts: 625
Questions: 10 | Attempts: 261

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Try Out Fisika Smp/Mts Tahun 2012/2013 By Dun-soft (Part 2) - Quiz

Try out untuk siswa SMP/MTs tahun 2012/2013


Questions and Answers
  • 1. 

    Perhatikan gambar!                   Jenis cacat mata dan kacamata apakah yang dapat menolong penderita cacat mata tersebut?

    • A.

      Rabun dekat dan lensa cembung

    • B.

      Rabun dekat dan lensa cekung

    • C.

      Rabun jauh dan lensa cekung

    • D.

      Rabun jauh dan lensa cembung

    Correct Answer
    A. Rabun dekat dan lensa cembung
    Explanation
    The image shows a person with a close-up view of an object. This indicates that the person has a condition called "rabun dekat" or nearsightedness, where they have difficulty seeing objects that are far away. To correct this condition, they would need to use "lensa cembung" or convex lenses, which are thicker in the middle and thinner at the edges, to help focus light properly onto the retina. Therefore, the correct answer is "rabun dekat dan lensa cembung".

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  • 2. 

    Lilin diletakkan di depan cermin seperti gambar.                   Jarak titik fokus cermin 4 cm, perbesaran bayangan yang dibentuk cermin adalah....

    • A.

      1/4 kali

    • B.

      1/2 kali

    • C.

      1 kali

    • D.

      2 kali

    Correct Answer
    B. 1/2 kali
    Explanation
    The correct answer is 1/2 kali because when an object is placed in front of a mirror, the image formed is virtual and upright. The magnification of the mirror is determined by the ratio of the image distance to the object distance. In this case, since the object is placed at a distance of 4 cm from the mirror, the image distance will also be 4 cm. Therefore, the magnification is 1/2, indicating that the image is half the size of the object.

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  • 3. 

    Ketika terjadi petir, kilat lebih dahulu kita lihat baru kemudian terdengar bunyinya. Hal ini disebabkan oleh....

    • A.

      Cahaya merupakan gelombang longitudinal dan bunyi merupakan gelombang transversal

    • B.

      bunyi merupakan gelombang longitudinal dan cahaya adalah gelombang elektromagnetik

    • C.

      Cepat rambat cahaya jauh lebih besar daripada cepat rambat bunyi

    • D.

      Cepat rambat cahaya jauh lebih kecil daripada cepat rambat bunyi

    Correct Answer
    C. Cepat rambat cahaya jauh lebih besar daripada cepat rambat bunyi
    Explanation
    The correct answer is "cepat rambat cahaya jauh lebih besar daripada cepat rambat bunyi" because light travels much faster than sound. When there is lightning, we see the flash of light first before hearing the sound because light waves travel at a much higher speed than sound waves.

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  • 4. 

    Perhatikan gambar berikut!                   Jarak antara dua puncak gelombang yang saling berdekatan diperlihatkan seperti pada gambar, maka cepat rambat gelombang tersebut adalah.....

    • A.

      0,5 m/s

    • B.

      1 m/s

    • C.

      1,5 m/s

    • D.

      3 m/s

    Correct Answer
    B. 1 m/s
    Explanation
    Based on the given image, the distance between two adjacent wave crests is shown. The wavelength is the distance between two consecutive crests, and it can be measured by counting the number of crests within a given distance. In this case, there are two crests within a distance of 2 meters, indicating that the wavelength is 2 meters. The wave speed can be calculated by dividing the wavelength by the period. Since the period is not given, we cannot calculate the wave speed accurately. Therefore, the correct answer cannot be determined based on the information provided.

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  • 5. 

    Berdasarkan gambar berikut, dapat ditentukan kutub Utara (U) dan Selatan (S) pada batang besi A dan B adalah....                 

    • A.

      A kutub U, B kutub S, bersifat tetap

    • B.

      A kutub S, B kutub U, bersifat Sementara

    • C.

      A kutub U, B kutub S, bersifat sementara

    • D.

      A kutub S, B kutub U, bersifat tetap

    Correct Answer
    C. A kutub U, B kutub S, bersifat sementara
    Explanation
    Based on the given picture, it can be determined that the North (U) pole is on iron bar A and the South (S) pole is on iron bar B. However, the polarity of the bars is temporary, meaning that it can be reversed.

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  • 6. 

    Suatu percobaan dengan menggunakan alat dan bahan seperti pada gambar berikut:                   Setelah digosok berulangkali dengan kain tersebut, penggaris plastik dapat menarik serpihan kertas kecil seperti pada gambar II. Hal ini membuktikan bahwa bahwa penggaris tersebut bermuatan listrik....

    • A.

      Negatif, karena telah menerima beberapa elektron dari kain

    • B.

      Negatif, karena jumlah elektron pada orbit terluar berkurang

    • C.

      Positif, karena telah melepaskan sebagian dari elektronnya

    • D.

      Positif, karena jumlah proton dalam inti atom bertambah

    Correct Answer
    A. Negatif, karena telah menerima beberapa elektron dari kain
    Explanation
    The correct answer is "Negatif, karena telah menerima beberapa elektron dari kain." This is because when the plastic ruler is rubbed with the cloth, it gains electrons from the cloth. This causes the ruler to become negatively charged, which allows it to attract small paper particles.

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  • 7. 

    Rumah Pak Amin menggunakan peralatan listrik yang terdiri dari 3 lampu masing-masing 40 W, 2 lampu masing-masing 25 W yang semuanya digunakan 12 jam sehari dan pesawat TV 120 W digunakan selama 10 jam sehari. Jika tarif listrik Rp 800,00 / kWh maka rekening energi listrik yang harus dibayar Pak Amin dalam 1 bulan (30 hari) adalah....

    • A.

      Rp 77.660,00

    • B.

      Rp 77.760,00

    • C.

      Rp 77.860,00

    • D.

      Rp 77.960,00

    Correct Answer
    B. Rp 77.760,00
    Explanation
    The total energy consumption can be calculated by multiplying the power rating of each appliance by the number of hours it is used per day. The total energy consumption for the 3 lamps (40W each) is 3 * 40 * 12 = 1,440 Wh. The total energy consumption for the 2 lamps (25W each) is 2 * 25 * 12 = 600 Wh. The energy consumption for the TV (120W) is 120 * 10 = 1,200 Wh. Adding up all the energy consumption, we get 1,440 + 600 + 1,200 = 3,240 Wh. Converting this to kWh, we divide by 1,000 to get 3.24 kWh. Multiplying this by the tariff of Rp 800,00 / kWh, we get Rp 3.24 * 800 = Rp 2,592. Multiplying this by 30 days, we get Rp 2,592 * 30 = Rp 77,760. Therefore, the correct answer is Rp 77,760.

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  • 8. 

    Perhatikan rangkaian listrik berikut!                   Bila R1 = 5 Ohm, R2 = R3 = 6 Ohm, dan hambatan dalam elemen serta hambatan kawat diabaikan, maka kuat arus (I) yang mengalir adalah....

    • A.

      2,40 A

    • B.

      2,00 A

    • C.

      1,50 A

    • D.

      1,09 A

    Correct Answer
    C. 1,50 A
  • 9. 

    Dari empat posisi bulan berikut yang menyebabkan kenaikan air laut paling besar adalah posisi....                 

    • A.

      4

    • B.

      3

    • C.

      2

    • D.

      1

    Correct Answer
    C. 2
    Explanation
    Pada posisi 2, bulan berada di sisi yang berlawanan dengan matahari dan bumi. Hal ini menyebabkan gaya tarik gravitasi bulan dan matahari terhadap air laut saling bertambah. Akibatnya, terjadi peningkatan kenaikan air laut yang paling besar.

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  • 10. 

    Perhatikan susunan tata surya seperti gambar berikut!                   Benda langit yang lintasannya berada diantara planet 4 dan 5 adalah....

    • A.

      Meteorit

    • B.

      Satelit

    • C.

      Komet

    • D.

      Asteroid

    Correct Answer
    D. Asteroid
    Explanation
    An asteroid is a small rocky object that orbits the sun, typically found in the asteroid belt between Mars and Jupiter. In this question, it is stated that the object's orbit is between planet 4 and 5, which suggests that it is located in the asteroid belt. Therefore, the correct answer is asteroid.

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  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Mar 17, 2013
    Quiz Created by
    Dzikir
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