Assessment
Uses of Common Metals (Iron, Copper, Aluminum)
Uses of Common Metals (Iron, Copper, Aluminum)
ninja coder
Chemistry
Grade9
10 Plays
100 Participants
1.
Multiple Choice
1 pts•30 sAnswer choicesIron is commonly used in construction because of its:
Softness
High melting point
Strength and durability
Low cost
2.
Multiple Choice
1 pts•30 sAnswer choicesCopper is widely used in electrical wiring due to its:
High resistance
Poor conductivity
Excellent electrical conductivity
Shiny appearance
3.
Multiple Choice
1 pts•30 sAnswer choicesAluminum is preferred for making aircraft bodies because it is:
Heavy and strong
Lightweight and corrosion-resistant
Shiny and brittle
Magnetic and soft
4.
Multiple Choice
1 pts•30 sAnswer choicesCopper is also used in making utensils because it:
Is brittle and hard
Conducts heat well
Is resistant to electricity
Does not react with food
5.
Multiple Choice
1 pts•30 sAnswer choicesWhich of the following metals is used to make beverage cans?
Iron
Copper
Aluminum
Zinc
6.
Multiple Choice
1 pts•30 sAnswer choicesIron rusts when exposed to:
Carbon dioxide only
Water and oxygen
Sunlight
Salt only
7.
Multiple Choice
1 pts•30 sAnswer choicesAluminum utensils are often anodized to:
Increase shine
Reduce reactivity
Make them heavier
Increase conductivity
8.
Multiple Choice
1 pts•30 sAnswer choicesCopper is used in making coins because it:
Is shiny and easily available
Is expensive
Has magnetic properties
Is brittle and hard
9.
Multiple Choice
1 pts•30 sAnswer choicesWhich of these metals is used in window frames and doors?
Copper
Iron
Aluminum
Zinc
10.
Multiple Choice
1 pts•30 sAnswer choicesIron is an essential part of which human body component?
Enzymes
Hemoglobin
Saliva
Muscles