Bank Soal IPA Kelas 9

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  • 1/20 Soalan

    Peristiwa yang terjadi pada pengisian akumulator (aki) merupakan perubahan bentuk energi dari ....

    • Energi kimia menjadi energi panas
    • Energi kimia menjadi energi listrik
    • Energi listrik menjadi energi kimia
    • Energi listrik menjadi energi panas
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Bank Soal IPA Kelas 9 - Quiz

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  • 2. 

    Energi yang berasal dari bahan fosil suatu saat akan habis, maka diperlukan energi alternatif yang berasal dari luar bumi, yaitu ....

    • Panas bumi

    • Angin

    • Matahari

    • Air

    Correct Answer
    A. Matahari
    Explanation
    The explanation for the correct answer, which is "matahari" (sun), is that energy from fossil fuels is finite and will eventually run out. Therefore, alternative energy sources are needed, and one such source is solar energy. The sun provides a constant and renewable source of energy that can be harnessed through solar panels and used to generate electricity.

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  • 3. 

    Penghematan energi sangat penting untuk kelangsungan hidup. Salah satu cara untuk menghemat energi adalah ....

    • Menyetrika baju setiap hari

    • Saat tidur lampu tetap menyala

    • Televisi selalu menyala

    • Saat tidur lampu dimatikan

    Correct Answer
    A. Saat tidur lampu dimatikan
    Explanation
    One way to save energy is by turning off the lights when sleeping. This helps to reduce electricity consumption and conserve energy resources. By doing so, individuals can contribute to the sustainability of energy and promote a more environmentally friendly lifestyle.

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  • 4. 

    Pemain sepak bola menggunakan sepatu bola yang bawahnya dibuat kasar dan banyak tonjolan. Hal ini bertujuan untuk ....

    • Mempercepat lari

    • Meringankan beban

    • Memperbesar gaya gesek

    • Mudah menahan bola

    Correct Answer
    A. Memperbesar gaya gesek
    Explanation
    The rough and protruding surface of football shoes increases the friction between the shoe and the ground. This increased friction allows the player to have better control and stability while running, changing directions, and making quick movements on the field. It also helps in stopping and turning quickly. Therefore, the purpose of having a rough and protruding surface on football shoes is to increase the frictional force, which ultimately enhances the player's ability to maneuver effectively during the game.

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  • 5. 

    Mobil sedan yang mogok dapat bergerak jika didorong. Hal ini membuktikan bahwa gaya mempengaruhi ....

    • Benda bergerak menjadi semakin cepat

    • Benda bergerak menjadi semakin lambat

    • Bentuk benda

    • Benda diam menjadi gerak

    Correct Answer
    A. Benda diam menjadi gerak
    Explanation
    The explanation for the given correct answer is that when a stationary car is pushed, it starts moving. This demonstrates that force can cause an object at rest to start moving, indicating that "benda diam menjadi gerak" (an object at rest starts moving) is the correct answer.

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  • 6. 

    Perubahan energi yang terjadi pada turbin generator adalah ....

    • Kalor menjadi listrik

    • Listrik menjadi panas

    • Gerak menjadi listrik

    • Kimia menjadi gas

    Correct Answer
    A. Gerak menjadi listrik
    Explanation
    The correct answer is "gerak menjadi listrik." This is because a turbine generator converts the kinetic energy of a moving fluid (such as steam or water) into electrical energy. The moving fluid causes the turbine blades to rotate, which in turn rotates the generator's rotor. This rotational motion is then converted into electrical energy by the generator's electromagnetic field.

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  • 7. 

    Cahaya yang merambat di antara dua bidang permukaan yang berbeda kerapatannya akan mengalami ....

    • Pemantulan

    • Pembiasan

    • Penyerapan

    • Perambatan lurus

    Correct Answer
    A. Pembiasan
    Explanation
    Cahaya yang merambat di antara dua bidang permukaan yang berbeda kerapatannya akan mengalami pembiasan. Pembiasan terjadi ketika cahaya bergerak dari satu medium ke medium lain dengan kecepatan yang berbeda. Ketika cahaya melewati bidang permukaan yang berbeda kerapatannya, sudut datangannya akan berubah dan cahaya akan membungkuk. Ini disebabkan oleh perbedaan kecepatan cahaya di kedua medium tersebut.

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  • 8. 

    Bunyi merambat paling cepat melalui ....

    • Ruang hampa

    • Benda cair

    • Benda gas

    • Benda padat

    Correct Answer
    A. Benda padat
    Explanation
    Sound travels fastest through solids because the particles in a solid are tightly packed together, allowing the sound waves to easily transfer energy from one particle to the next. In liquids and gases, the particles are more spread out, causing the sound waves to encounter more resistance and slowing down the speed at which they can travel. In a vacuum or empty space, there are no particles for the sound waves to interact with, so they cannot travel at all.

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  • 9. 

    Bunyi yang dapat didengar oleh manusia disebut ....

    • Infrasonik

    • Audiosonik

    • Ultrasonik

    • Supersonik

    Correct Answer
    A. Audiosonik
    Explanation
    The correct answer is "audiosonik" because it refers to sounds that can be heard by humans. "Infrasonik" refers to sounds with frequencies below the range of human hearing, "ultrasonik" refers to sounds with frequencies above the range of human hearing, and "supersonik" refers to speeds greater than the speed of sound.

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  • 10. 

    Suatu benda dikatakan benda gelap jika benda itu ....

    • Menyerap cahaya

    • Memantulkan cahaya

    • Membaurkan cahaya

    • Membiaskan cahaya

    Correct Answer
    A. Menyerap cahaya
    Explanation
    A dark object is one that absorbs light rather than reflecting or scattering it. When an object absorbs light, it means that the light energy is absorbed by the object's molecules and converted into other forms of energy, such as heat. Therefore, the correct answer is "menyerap cahaya" which translates to "absorbs light" in English.

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  • 11. 

    Kehidupan makhluk hidup di bumi akan sengsara jika tidak ada sumber energi yang penting di bumi. Sumber energi panas yang ada di bumi adalah ....

    • Lampu neon

    • Matahari

    • Bulan

    • Api

    Correct Answer
    A. Matahari
    Explanation
    The correct answer is "matahari" because the passage states that the life of living creatures on Earth would suffer if there were no important energy sources on Earth. The passage also mentions that the heat energy source on Earth is the sun, which indicates that the sun is crucial for sustaining life on Earth.

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  • 12. 

    Gelas bekas air es kemudian dituangi air panaas maka gelas itu akan pecah, sebab ....

    • Tidak tahan panas

    • Rapuh karena panas

    • Memuai sebagian

    • Mengerut sebagian

    Correct Answer
    A. Memuai sebagian
    Explanation
    When a glass that was previously filled with cold water is poured with hot water, it will expand partially due to the difference in temperature. This expansion is known as thermal expansion or "memuai sebagian" in Indonesian. The glass may not be able to withstand this expansion and may crack or break as a result.

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  • 13. 

    Pemasangan rel kereta api diberi jarak karena ....

    • Rel akan mendatar jika kena dingin

    • Rel akan melengkung jika kena dingin

    • Rel akan menyusut jika kena panas

    • Rel akan memuai jika kena panas

    Correct Answer
    A. Rel akan memuai jika kena panas
    Explanation
    The correct answer is "rel akan memuai jika kena panas" which means "the rails will expand when exposed to heat." This is because when the temperature increases, the metal rails will expand and become longer. To accommodate this expansion and prevent buckling or bending, a gap is provided between the rails during installation.

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  • 14. 

    Peristiwa angin darat dan angin laut merupakan contoh bentuk perpindahan panas secara ....

    • Radiasi

    • Konveksi

    • Konduksi

    • Konstruksi

    Correct Answer
    A. Konveksi
    Explanation
    The correct answer is konveksi. Angin darat dan angin laut adalah contoh perpindahan panas secara konveksi. Konveksi adalah proses perpindahan panas melalui pergerakan massa fluida, seperti udara atau air, yang terjadi karena perbedaan suhu. Dalam kasus ini, angin darat dan angin laut terjadi karena perbedaan suhu antara daratan dan laut, yang menyebabkan udara panas di daratan naik dan udara dingin di laut turun, menciptakan pergerakan udara yang disebut angin.

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  • 15. 

    Salah satu contoh perpindahan panas secara radiasi adalah ....

    • Pegangan ujung sodet terasa panas ketika menggoreng

    • Air yang direbus, panasnya merambat ke seluruh isi

    • Panci alumunium terasa panas saat merebus

    • Panas matahari pada siang hari terasa sampai bumi

    Correct Answer
    A. Panas matahari pada siang hari terasa sampai bumi
    Explanation
    The correct answer is "panas matahari pada siang hari terasa sampai bumi" because it describes the transfer of heat through radiation. In this case, the heat from the sun is radiated and can be felt on the Earth's surface.

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  • 16. 

    Kegunaan sekring adalah ....

    • Alat pengukur arus listrik

    • Alat penurun tegangan

    • Alat pemutus dan penyambung arus

    • Alat pencegah kebakaran

    Correct Answer
    A. Alat pemutus dan penyambung arus
    Explanation
    The correct answer is "alat pemutus dan penyambung arus" (device for breaking and connecting currents). Sekring (fuse) is a safety device that is designed to protect electrical circuits from excessive current flow. When the current exceeds a certain limit, the fuse will melt and break the circuit, preventing damage to the electrical equipment or potential fire hazards. Once the fault is fixed, the fuse can be replaced to restore the circuit. Thus, sekring acts as both a breaker and connector of electrical currents.

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  • 17. 

    Berikut ini yang bukan merupakan pemanfaatan prinsip magnet dalam kehidupan sehari-hari adalah ....

    • Menggerakkan kipas angin

    • Membuat kompas

    • Membuat bel listrik

    • Menggerakkan motor listrik

    Correct Answer
    A. Menggerakkan kipas angin
    Explanation
    The correct answer is "menggerakkan kipas angin" because the principle of magnet is not utilized in operating a fan. Fans are typically powered by electricity and use the rotation of blades to create air movement, but magnets are not involved in the process.

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  • 18. 

    Pada saat kita melintasi jalan di pegunungan, akan kita lihat jalan yang berkelok-kelok. Hal ini sesuai dengan prinsip ...

    • Pengungkit

    • Roda berputar

    • Katrol

    • Bidang miring

    Correct Answer
    A. Bidang miring
    Explanation
    When we cross a mountain road, we can see that the road is winding. This is in accordance with the principle of an inclined plane. An inclined plane refers to a sloping surface that allows objects to be moved up or down with less force. In the context of the question, the winding road can be considered as an inclined plane because it allows vehicles to ascend or descend the mountain with less effort compared to a straight road.

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  • 19. 

    Lengan manusia merupakan pengungkit jenis ....

    • Pertama

    • Kedua

    • Ketiga

    • Keempat

    Correct Answer
    A. Ketiga
    Explanation
    The correct answer is "ketiga" because the phrase "lengan manusia merupakan pengungkit jenis" suggests that the question is asking about the type of lever that the human arm represents. There are three types of levers, and the human arm is an example of a third-class lever, where the effort is applied between the fulcrum (elbow joint) and the load (hand).

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  • 20. 

    Air yang berada di dalam gelas yang dimiringkan akan terlihat ....

    • Miring

    • Datar

    • Tegak

    • Tetap

    Correct Answer
    A. Datar
    Explanation
    When the glass is tilted, the water inside will appear "datar" or level. This is because the surface of the water will adjust itself to be parallel to the base of the glass due to gravity. The water molecules will spread out evenly to achieve equilibrium, creating a flat surface.

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Quiz Review Timeline (Updated): Mar 22, 2023 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 22, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Sep 14, 2012
    Quiz Created by
    Deio
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