9.1 Alloy

Which of the following is an alloy?

• Aluminium

• Magnesium

• Carbon dioxide

• Pewter

Diagram 2 shows the characteristics of an alloy.

Which of the following is the most suitable use of this alloy?

• To build buildings

• To build bridges

• To build an airplane structure

• To make keys

What is the advantage of having a mix of other elements in an alloy?

• Prevent the atoms from sliding

• Enable the atoms to change positions

• Making the atoms to be stronger

• Making the atoms to be more stable

Which of the following alloys is used to make the instrument in Diagram 3?

• Copper

• Bronze

• Steel

• Brass

Which of the following is the advantage of superconductor compared to other alloys?

• Conduct electrical current without resistance

• Conduct electrical current faster

• Conduct electrical current safer

• Conduct electrical current much further

Which of the following is the usage of superconductor in life?

• 
• 
• 
• 

Which of the following metals that does not have the same arrangement as the metal in Diagram 1?

• Copper

• Bronze

• Steel

• Brass

Information below shows the composition in alloy X.

What is alloy X?

• Bronze

• Pewter

• Brass

• Duralumin

Which of the following is NOT the characteristic of an alloy?

• Consist of a mix of metals

• Conducts electricity

• Low corrosive resistant

• Does not reacts easily with water or air

Which alloy shows it correct uses?

• Steel - Use to make the structure of an aircraft

• Duralumin - Used to build bridges and buildings

• Bronze - Use to make decorative of metals

• Brass - Use in musical instruments and keys