WorksheetsAlloy
Total questions: 20
Worksheet time: 11mins
‘Bronze is harder than copper’. Which of the following is the best to explain the statement?
Atoms in bronze are arranged closely packed and less empty spaces.
Layers of atoms in bronze are not easily slide over each other.
Atomic size of copper and tin is different.
Bronze is a mixture of copper and tin
What is the composition of brass?
30% tin and 70% copper
10% tin and 90% copper
30% zinc and 70% copper
10% zinc and 90% copper
Which of the following statements below is true?
Copper is more ductile than brass
Brass is more malleable than copper
Iron is shinier than stainless steel
Iron is more resistant to corrosion than steel
An industrial product is made by adding chromium and carbon to iron. The product produced is
I. more malleable than iron
II. more resistant to corrosion than iron
III. is shinier than iron
IV. is harder than iron
II and IV
I, II and III
II, III and IV
I, II, II and IV
Which of the following mixture forms a light and strong alloy to make the body of a speeding boat?
iron and carbon
Aluminium and copper
Copper and nickel
Tin and lead
Which of the following characteristics belong to pure metals?
I. Ductile
II. Malleable
III. Brittle
IV. Good conductor of electricity
I and II
I and IV
I, II and IV
I, II, III and IV
Diagram above shows the arrangement of atoms in brass. Which of the following could be atoms X and Y?
X : Copper Y: Tin
X: Zinc Y: Copper
X: Iron Y: Carbon
X: Copper Y: Zinc
Which of the following alloy is used to make the body of an aeroplane?
Brass
Duralumin
Steel
Pewter
Which of the following is not the aim of alloying?
To increase the strength and hardness of metal.
To prevent corrosion of metal.
To improve the appearance of metal
To increase the melting point.
This alloy contain 93% aluminium, 3% copper, 3% magnesium and 1% manganese. This alloy is known as
Brass
Bronze
Steel
Duralumin
What can be made with steel?
Bridges
Monument
Household articles
Bicycles
Which of the following is the usage of superconductor in life?
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 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
The purpose of this experiment is to compare
Hardness of metal and alloy
Resistance towards corrosion of metal and alloy
What is the main metal used to made pewter?
Tin
Copper
Antimony
Aluminium
3. What are the properties of soda -lime glass?
chemically inert
easy to shape
low melting point
This glass is made of silica, boron oxide, sodium oxide, aluminum oxide. What is this glass?
fused silica glass
borosilicate glass
lead crystal glass
Which types of glass has high resistance to heat and chemicals compared to soda-lime glass?
soda-lime glass
lead crystal glass
borosilicate glass
