Bab 9 Pesawat Sederhana

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Bab 9 Pesawat Sederhana - Quiz

Kapal Dapat Ditarik oleh Satu OrangArchimedes, seorang ilmuwan berkebangsaan Yunani pernah membuat alat penarik kapal yang menggunakan prinsip kerja katrol. Dengan alat tersebut, kapal yang berada di pantai berpasir dapat ditarik menuju laut hanya dengan menggunakan tenaga seorang laki-laki.


Questions and Answers
  • 1. 

    Alat yang menggunakan prinsip kerja pengungkit yaitu . . . .

    • A.

      Derek

    • B.

      Pembuka botol

    • C.

      Timba sumur

    • D.

      Kursi roda

    Correct Answer
    B. Pembuka botol
    Explanation
    The correct answer is "pembuka botol" because a bottle opener is a tool that uses the principle of a lever to remove the cap from a bottle. A lever is a simple machine that consists of a rigid bar or board that pivots on a fulcrum. In the case of a bottle opener, the fulcrum is the edge of the bottle cap, and by applying force to one end of the lever, the cap is lifted off the bottle.

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  • 2. 

    Fungsi pesawat sederhana yaitu . . . .

    • A.

      Memudahkan pekerjaan

    • B.

      Menambah tenaga

    • C.

      Menambah beban

    • D.

      Meniadakan gaya yang bekerja

    Correct Answer
    A. Memudahkan pekerjaan
    Explanation
    The correct answer is "memudahkan pekerjaan" which translates to "facilitating work" in English. A simple machine is designed to make tasks easier or more efficient by reducing the amount of force or effort required. Therefore, the function of a simple machine is to simplify or facilitate work.

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  • 3. 

    Paku yang menancap di tembok lebih mudah dicabut menggunakan pesawat sederhana berupa . . . .

    • A.

      Pengungkit

    • B.

      Bidang miring

    • C.

      Katrol

    • D.

      Roda

    Correct Answer
    A. Pengungkit
    Explanation
    A pengungkit (lever) is a simple machine that can be used to amplify force and make it easier to remove a nail from a wall. By applying force to one end of the lever, the other end exerts a greater force on the nail, allowing it to be pulled out more easily. This makes pengungkit the most suitable option for removing a nail from a wall.

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  • 4. 

    Posisi titik tumpu, beban, dan kuasa pada alat di samping yaitu . . . .

    • A.

      Titik tumpu berada di antara beban dan kuasa

    • B.

      Beban berada di antara titik tumpu dan kuasa

    • C.

      Kuasa berada di antara titik tumpu dan beban

    • D.

      Titik tumpu, beban, dan kuasa berada pada satu tempat

    Correct Answer
    B. Beban berada di antara titik tumpu dan kuasa
    Explanation
    The correct answer is "beban berada di antara titik tumpu dan kuasa." This means that the load is located between the pivot point and the effort or force applied. In a lever system, the load is the object being moved or lifted, the pivot point is where the lever rotates, and the effort is the force applied to move the load.

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  • 5. 

    Tangga merupakan pesawat sederhana yang memanfaatkan prinsip . . . .

    • A.

      Pengungkit

    • B.

      Bidang miring

    • C.

      Katrol

    • D.

      Roda berporos

    Correct Answer
    B. Bidang miring
    Explanation
    The correct answer is "bidang miring." A tangga is a simple machine that utilizes the principle of a inclined plane. It is used to make it easier to climb up or down a height by spreading the effort over a longer distance. By increasing the length of the slope, the amount of force required to move an object vertically is reduced. This principle is commonly seen in ramps, stairs, and sloping roads.

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  • 6. 

    Pada waktu menyapu, titik tumpu terletak pada bagian yang bernomor . . . .

    • A.

      I

    • B.

      II

    • C.

      III

    • D.

      IV

    Correct Answer
    A. I
    Explanation
    During sweeping, the pivot point is located at position I.

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  • 7. 

    Prinsip bidang miring diterapkan pada alat . . . .

    • A.

      Kereta dorong

    • B.

      Jungkat-jungkit

    • C.

      Sekrup

    • D.

      Takal

    Correct Answer
    C. Sekrup
    Explanation
    The principle of inclined plane is applied to the screw. The screw is a simple machine that consists of an inclined plane wrapped around a cylindrical shaft. It allows for the conversion of rotational motion into linear motion, making it easier to lift or move objects. The inclined plane of the screw allows for a longer distance over which the force is applied, reducing the amount of force needed to accomplish the same work.

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  • 8. 

    Sumur timba memanfaatkan pesawat sederhana berupa . . . .

    • A.

      Katrol tetap

    • B.

      Katrol bebas

    • C.

      Katrol rangkap

    • D.

      Katrol ganda

    Correct Answer
    A. Katrol tetap
    Explanation
    Sumur timba memanfaatkan pesawat sederhana berupa katrol tetap. Katrol tetap adalah jenis katrol yang tidak dapat bergerak. Dalam hal ini, katrol tetap digunakan untuk mengangkat timba dengan mengurangi beban yang diperlukan oleh pengguna. Ketika timba ditarik, katrol tetap akan memutar dan mengurangi gaya yang diperlukan untuk mengangkat timba. Dengan demikian, katrol tetap mempermudah proses pengambilan air dari sumur timba.

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  • 9. 

    Bagian pada sekrup yang menggunakan prinsip kerja bidang miring yaitu nomor . . . .

    • A.

      I

    • B.

      II

    • C.

      III

    • D.

      IV

    Correct Answer
    A. I
    Explanation
    The correct answer is I. The explanation for this is that the part of the screw that uses the principle of inclined plane is the thread. The thread of the screw is a continuous helical ridge that winds around the cylindrical body of the screw. When the screw is rotated, the inclined plane of the thread allows it to move through a solid material, such as wood or metal, by converting rotational motion into linear motion. This makes it easier to drive the screw into the material or to create a mechanical advantage for lifting heavy objects.

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  • 10. 

    Saat mengangkat benda dengan katrol, gaya yang diperlukan bertumpu pada . . . .

    • A.

      Gaya gesek dan berat badan

    • B.

      Gaya gesek dan gaya tarik

    • C.

      Gaya tarik dan berat badan

    • D.

      Gaya gravitasi dan berat badan

    Correct Answer
    C. Gaya tarik dan berat badan
    Explanation
    When lifting an object with a pulley, the force required is supported by the tension force in the rope (gaya tarik) and the weight of the object (berat badan). The tension force in the rope pulls upward, counteracting the downward force of gravity on the object. Therefore, the correct answer is "gaya tarik dan berat badan."

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  • 11. 

    Roda pada sepeda bekerja menggunakan prinsip . . . .

    • A.

      Bidang miring

    • B.

      Roda berporos

    • C.

      Pengungkit

    • D.

      Katrol

    Correct Answer
    B. Roda berporos
    Explanation
    The correct answer is "roda berporos". This is because the phrase "roda berporos" translates to "axle wheel" in English. In a bicycle, the wheels are attached to the axle, which allows them to rotate and move the bike forward. Therefore, the working principle of the bicycle wheels is based on the concept of having an axle or pivot point, which is represented by the term "roda berporos".

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  • 12. 

    Alat di atas bekerja menggunakan prinsip . . . .

    • A.

      Bidang miring

    • B.

      Pengungkit

    • C.

      Katrol

    • D.

      Roda berporos

    Correct Answer
    A. Bidang miring
    Explanation
    The correct answer is "bidang miring" because the tool mentioned in the question works using the principle of an inclined plane. An inclined plane is a flat surface that is at an angle to the horizontal surface. It allows for the movement of objects along its surface with less force required compared to lifting the object vertically.

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  • 13. 

    Derek di pelabuhan menggunakan jenis katrol . . . .

    • A.

      Tetap

    • B.

      Bebas

    • C.

      Rangkap

    • D.

      Takal

    Correct Answer
    C. Rangkap
    Explanation
    The correct answer is "rangkap." In the given question, it is mentioned that Derek di pelabuhan menggunakan jenis katrol, which translates to "Derek at the port uses a type of pulley." The word "rangkap" means "compound" or "multiple" in Indonesian. Therefore, it can be inferred that Derek is using a compound pulley system, where multiple pulleys are used to increase mechanical advantage and make lifting heavy loads easier.

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  • 14. 

    Gambar di samping merupakan katrol jenis . . . .

    • A.

      Katrol tetap

    • B.

      Katrol bebas

    • C.

      Katrol rangkap

    • D.

      Katrol takal

    Correct Answer
    C. Katrol rangkap
    Explanation
    The picture shown is a compound pulley. Compound pulleys consist of multiple pulleys, usually a combination of fixed and movable pulleys, that are connected together to increase mechanical advantage. In this type of pulley system, the effort force is distributed over multiple ropes and pulleys, making it easier to lift heavy loads.

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  • 15. 

    Perhatikan alat-alat berikut!I. Kursi rodaII. Bor listrikIII. Roda sepedaIV. Timba sumurV. SekrupAlat yang menggunakan prinsip roda berporos yaitu . . . .

    • A.

      I dan II

    • B.

      I dan III

    • C.

      III dan IV

    • D.

      II dan V

    Correct Answer
    B. I dan III
    Explanation
    Alat yang menggunakan prinsip roda berporos adalah kursi roda dan roda sepeda. Kursi roda menggunakan roda berporos untuk memudahkan pergerakan orang yang tidak bisa berjalan, sedangkan roda sepeda menggunakan roda berporos untuk memberikan daya dorong saat bersepeda.

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  • 16. 

    Apa yang dimaksud pesawat sederhana? Berikan contohnya!

    • A.

      Adalah alat-alat yang dapat memudahkan pekerjaan manusia. misalnya obeng

    • B.

      Adalah alat-alat yang dapat memudahkan pekerjaan manusia. misalnya televisi

    • C.

      Adalah alat-alat yang dapat memudahkan pekerjaan manusia. misalnya pesawat terbang

    • D.

      Adalah alat-alat yang dapat memudahkan pekerjaan manusia. seperti penggaris

    Correct Answer
    A. Adalah alat-alat yang dapat memudahkan pekerjaan manusia. misalnya obeng
    Explanation
    Pesawat sederhana adalah alat-alat yang dapat memudahkan pekerjaan manusia. Contohnya adalah obeng, yang digunakan untuk memasang atau melepas baut atau sekrup.

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  • 17. 

    Sebutkan dua contoh alat yang kerjanya menerapkan prinsip pesawat sederhana bidang miring...

    • A.

      Gunting, palu

    • B.

      Pinset, sapu

    • C.

      Kapak, psau

    • D.

      Grobak, kursi roda

    Correct Answer
    C. Kapak, psau
    Explanation
    The correct answer is "Kapak, psau". Both a kapak (axe) and psau (saw) are examples of tools that work based on the principle of a simple inclined plane. The blade of an axe is a sloping surface that allows for easier splitting of wood by reducing the force required. Similarly, the teeth of a saw are also inclined, which helps to cut through materials more efficiently by reducing friction.

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  • 18. 

    Sebutkan dua contoh pesawat sederhana pengungkit? 

    • A.

      A. Gunting tang

    • B.

      B. pisau, kapak

    • C.

      C. kursi roda, grobak

    • D.

      D. televisi, radio.

    Correct Answer
    A. A. Gunting tang
    Explanation
    The correct answer is a. Gunting tang. Gunting tang is an example of a simple lever. It consists of two arms connected at a pivot point, with one arm longer than the other. By applying force on one arm, the lever can be used to lift or move objects. This makes it a type of simple machine that utilizes the principle of leverage.

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  • 19. 

    Sebutkan dua pesawat sederhana roda berporos?

    • A.

      Geropak, gunting

    • B.

      Kursi roda, grobak

    • C.

      Gunting, kursi roda

    • D.

      Gunting, tang

    Correct Answer
    B. Kursi roda, grobak
    Explanation
    The correct answer is "Kursi roda, grobak." Kursi roda (wheelchair) and grobak (cart) are two examples of simple machines with wheels and axles. These machines use the rotation of the wheel around the axle to make it easier to transport objects or people.

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  • 20. 

    Katrol yang terdiri dari beberapa katrol yang disatukan dengan tali.....

    • A.

      Katrol tetap

    • B.

      Katrol bebas

    • C.

      Katrol rangkap

    • D.

      Katrol ganda

    Correct Answer
    D. Katrol ganda
    Explanation
    The correct answer is "katrol ganda". This is because a "katrol ganda" refers to a system of pulleys that consists of multiple pulleys connected by a single rope or cable. In this system, the load is attached to one end of the rope, and the effort is applied to the other end. The use of multiple pulleys in a "katrol ganda" system allows for a mechanical advantage, making it easier to lift heavy loads.

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

  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Jan 27, 2015
    Quiz Created by
    Faisalazmi648
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