
NanoDidik 2025 @N.9
Quiz
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Science
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Professional Development
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Practice Problem
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NURNAZEERA ION2
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apakah maklumat utama yang boleh diperoleh melalui XRD (X-ray Diffraction)?
Komposisi warna
Struktur hablur bahan
Ketelusan bahan
Sifat magnetik bahan
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Proses “bottom-up” dalam sintesis bahan nano melibatkan:
Pemecahan bahan besar menjadi kecil
Penyusunan atom atau molekul menjadi struktur nano
Pemotongan mekanikal bahan
Penggilingan dengan bebola
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Raman Spectroscopy digunakan untuk mengenal pasti:
Ketelusan bahan terhadap cahaya
Ikatan kimia dan struktur molekul bahan
Bentuk dan saiz permukaan
Ketumpatan bahan
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apakah kaedah yang digambarkan oleh imej ini:
Pengelupasan mekanikal
Pengembangan lapisan grafit
Pengelupasan fasa-cecair
Pengelupasan elektrokimia
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kelebihan grafen berbanding bahan karbon lain termasuk:
Sifat rapuh
Tidak boleh larut air
Ketumpatan rendah sahaja
Kekonduksian tinggi dan kekuatan mekanik
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mengapa perlu melakukan pencirian bahan nano selepas sintesis?
Untuk mempercepatkan pengeluaran
Untuk mengenal pasti warna bahan
Untuk mengesahkan struktur, morfologi, dan ketulenan
Untuk menjadikannya lebih mahal
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ciri struktur grafen ialah:
Lembaran dua dimensi atom karbon heksagon
Rantaian linear karbon
Hablur tiga dimensi
Tiub karbon bergulung
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