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Metals - Alloys
Bronze and cupronickel are both used to make coins. They are both examples of alloys.

Metals - Alloys

This Chemistry quiz is called 'Metals - Alloys' and it has been written by teachers to help you if you are studying the subject at high school. Playing educational quizzes is a user-friendly way to learn if you are in the 9th or 10th grade - aged 14 to 16.

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This is the first of our high school Chemistry quizzes on the topic of metals. In it we will find out about some of the properties and uses of alloys, the metals formed by mixing two or more (usually metallic) elements.

1.
Some alloys have very special properties. They return to their original shape after becoming deformed. These alloys are called...
shape memory alloys
shape remembering alloys
bend memory alloys
bendy alloys
This can be very useful in things like spectacles. How many people break their spectacles by sitting on them?
2.
Brass is an alloy made from...
copper and tin
copper and bronze
copper and zinc
copper and iron
Brass can be used to make doorknobs, ammunition and musical instruments
3.
Iron is mixed with other elements including carbon, chrominium and nickel to make steel. The percentage of the elements added determine the type of steel and also the properties of the steel produced. Which type of steel is likely to be used to make cutting tools?
High carbon steel
Low carbon steel
Stainless steel
Pure iron
This is a hard wearing type of steel
4.
Bronze and cupronickel are both used to make coins. They are both examples of...
compounds
alloys
elements
ores
These alloys are resistant to corrosion
5.
Gold that is used to make jewelry is usually an alloy. It is mixed with copper and silver. Apart from making it harder, what other property is changed by mixing it with other metals?
Increases its density
Lowers its melting point
Colour
Decreases its hardness
The color of gold is dependent on the metals it has been alloyed with. The amount of copper added to gold determines how 'red' the gold is
6.
Nitinol is an alloy made from...
copper and titanium
nickel and copper
neon and titanium
nickel and titanium
This alloy was developed in 1959 during research to produce better nose cones for military missiles
7.
Nitinol is a 'smart' alloy. Why can it be described as a 'smart' alloy?
It expands when it is heated
It is flexible
It is made by mixing two metals
It returns to its original shape when heated
The discovery that nitinol has this property was discovered by accident in 1961
8.
Bronze is an alloy made from...
copper and tin
copper and brass
copper and zinc
copper and iron
Bronze can be used to make statues, musical instruments and medals
9.
Metals are often mixed with other elements to make alloys. Which of the following is NOT a good reason for producing an alloy?
It can produce harder materials
It can produce different colored materials
It can produce more malleable materials
It can produce more brittle materials
Alloys are produced to make the properties of the materials more beneficial
10.
Which type of steel is likely to be used for flatware?
High carbon steel
Low carbon steel
Stainless steel
Pure iron
Stainless steel is highly resistant to rusting so the flatware will remain shiny and not corroded
Author:  Kate Gardiner

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