Pesawat Sederhana/ Aircraft Simple FOR ELEMENTARY SCHOOL NATURAL SCIENCE
Pesawat Sederhana
(Sumber: Asmawati, Puji.1995. Tanya Jawab Ilmu Pengetahuan Alam. Surakarta: Setiaji.)
Ø Apakah yang dimaksud dengan pesawat sederhana? Alat bantu sederhana yang digunakan untuk meringankan gaya yang dikeluarkan.
Ø Sebutkan contoh alat pesawat sederhana! Tuas atau pengungkit, bidang miring, katrol, roda dan poros.
Ø Sebutkan contoh alat yang menggunakan pengungkit sabagai alat bantu! Pembuka tutup kaleng, pembuka peti, pencabut paku.
Ø Ada seseorang sedang mengangkat sebuah balok kayu dengan bantuan besi. Menggunakan prinsip pengungkit jenis ke berapakah itu? Pengungkit jenis pertama.
Ø Apakah sebutan untuk benda yang akan di angkat? Beban.
Ø Apakah sebutan untuk titik tempat kuasa? Titik kuasa.
Ø Apakah sebutan untuk titik tempat beban? Titik beban.
Ø Sebutkan tiga jenis pengungkit! Pengungkit yang titik tumpunya ada di antara titik beban dan titik kuasa disebut pengungkit jenis pertama, pengungkit yang titik bebannya ada di antara titik tumpu dan titik kuasa di sebut pengungkit jenis kedua, pengungkit yang titik kuasa yang ada di antara titik beban dan titik tumpu disebut pengungkit jenis ketiga.
Ø Apakah yang disebut dengan fulcrum? Titik tumpu.
Ø Bagaimana sifat pengungkit itu? Makin dekat jarak antara titik beban dengan titik tumpu gaya yang diperlukan semakin kecil.
Ø Sebutkan beberapa contoh bidang miring! Sekrup, dongkrak, baji, kapak, pisau, jalan berbelok.
Ø Sebutkan macam-macam katrol! Katrol bebas dan katrol tetap.
Ø Mengapa jalan di pegunungan dibuat berkelok? Untuk mengurangi gaya beban yang diberikan.
Ø Apakah keuntungan menggunakan beban miring? Gaya yang digunakan semakin kecil.
Ø Apakah keuntungan menggunakan katrol tetap? Arah gaya dapat diubah dan gaya lebih mudah diterapkan.
Ø Apakah keuntungan menggunakan alat dengan prinsip roda? Menghemat energy dan waktu.
Ø Apa guna gotri dalam gir sepeda? untuk memudahkaan putaran dan mencegah kerusakan gir.
Ø Bedakan manfaat penggunaan katrol tetap dan katrol bebas! Katrol tetap lebih banyak menggunakan energy dibandingkan katrol bebas.
IN ENGLISH (with google translate Indonesian-english):
Aircraft Simple
(Source: Asmawati, Puji.1995. Realtime Natural Sciences. Surakarta: Setiaji.)
What is a simple plane? Simple tools are used to relieve the force is removed.
Identify examples of simple plane tool! Lever or lever, inclined plane, pulley, wheel and axle.
Identify examples of tools that use levers sabagai tool! Can opener, opening crates, nail pullers.
There is someone holding up a block of wood with the help of iron. Using the principle of the lever type to what it was? Lever of the first kind.
Is the name for the object to be in the lift? Expenses.
Is the term for the point where the power? Power point.
Is the term for the point where the load? Load point.
What are the three types of levers! Lever tumpunya point is between the load point and the point is called the power of the first lever type, lever load point is between the fulcrum and the point of the power of the second type is called leverage, leverage the power point that is in between the load and the fulcrum is called the lever The third kind.
What is a fulcrum? Fulcrum.
How does the nature of the lever? The closer the distance between the point of load to the fulcrum force needed less.
What are some examples of the incline! Screws, jack, wedge, ax, knife, turning roads.
Identify various pulley! Free pulley and pulley fixed.
Why is twisty mountain roads? To reduce the burden of a given style.
Are the advantages of using load angle? Style used less.
Are the advantages of using a pulley fixed? Direction of the force and style can be changed more easily applied.
Are the advantages of using the tool with the principles of the wheel? It saves energy and time.
What can I use buckshot in gear bikes? for memudahkaan round and prevent gear damage.
Differentiate the benefits of using a fixed pulley and pulley free! Pulleys still use more energy than the free pulley.
(Source: Asmawati, Puji.1995. Realtime Natural Sciences. Surakarta: Setiaji.)
What is a simple plane? Simple tools are used to relieve the force is removed.
Identify examples of simple plane tool! Lever or lever, inclined plane, pulley, wheel and axle.
Identify examples of tools that use levers sabagai tool! Can opener, opening crates, nail pullers.
There is someone holding up a block of wood with the help of iron. Using the principle of the lever type to what it was? Lever of the first kind.
Is the name for the object to be in the lift? Expenses.
Is the term for the point where the power? Power point.
Is the term for the point where the load? Load point.
What are the three types of levers! Lever tumpunya point is between the load point and the point is called the power of the first lever type, lever load point is between the fulcrum and the point of the power of the second type is called leverage, leverage the power point that is in between the load and the fulcrum is called the lever The third kind.
What is a fulcrum? Fulcrum.
How does the nature of the lever? The closer the distance between the point of load to the fulcrum force needed less.
What are some examples of the incline! Screws, jack, wedge, ax, knife, turning roads.
Identify various pulley! Free pulley and pulley fixed.
Why is twisty mountain roads? To reduce the burden of a given style.
Are the advantages of using load angle? Style used less.
Are the advantages of using a pulley fixed? Direction of the force and style can be changed more easily applied.
Are the advantages of using the tool with the principles of the wheel? It saves energy and time.
What can I use buckshot in gear bikes? for memudahkaan round and prevent gear damage.
Differentiate the benefits of using a fixed pulley and pulley free! Pulleys still use more energy than the free pulley.
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