Page 519 - SET 1 Koleksi Soalan dan Skema Jawapan SPM KBSM

10 (a) Table 10.1 shows the properties and the arrangement of atoms in two types of materials,
P and Q. Material Q is an alloy while P is its pure metal.
Jadual 10.1 menunjukkan sifat-sifat dan susunan atom dalam dua jenis bahan, P dan Q.
Bahan Q ialah sejenis aloi manakala P ialah logam tulennya.

Material P Material Q
Bahan P Bahan Q

Lembut dan kurang kuat Keras dan kuat

Not easily rust
Mudah berkarat Tidak mudah berkarat

Arrangement of atoms Arrangement of atoms
Susunan atom Susunan atom

Fe atom C atom
Atom Fe Atom C

Table 10.1
Jadual 10.1

(i) Material Q is more suitable than material P to make a railway tracks.
Explain in terms of arrangement of atoms, why material Q is more suitable to make a
railway tracks.
[4 marks]
Bahan Q lebih sesuai dijadikan landasan keretapi berbanding bahan P.
Terangkan dari segi susunan atom, mengapa bahan Q lebih sesuai dijadikan
landasan keretapi.
[4 markah]

26