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WorksheetsExploring Material Properties
Total questions: 18
Worksheet time: 17mins
What is a key property of building materials?
Aesthetic appeal
Cost-effectiveness
Lightweight and flexible
Strength and durability
Which property of wood makes it suitable for construction?
Strength and lightweight nature.
High thermal conductivity
Low resistance to moisture
Heavy and bulky nature
What is the main advantage of using metals in building?
Low cost and availability.
Lightweight and easy to transport.
Poor resistance to corrosion.
High strength and durability.
What property of concrete makes it a popular building material?
Low thermal conductivity
High water absorption
High compressive strength and durability.
Lightweight and flexible
What is a common use for aluminum in construction?
Concrete reinforcement
Insulation materials
Structural components and roofing materials.
Electrical wiring and plumbing
How does the thermal conductivity of metals affect their use?
Metals are only used for insulation due to their low thermal conductivity.
Metals are poor conductors of heat, making them ideal for insulation.
The thermal conductivity of metals has no impact on their applications.
The high thermal conductivity of metals makes them suitable for heat transfer applications but less ideal for insulation.
What is the significance of tensile strength in building materials?
Tensile strength is primarily concerned with thermal resistance.
Tensile strength only affects the aesthetic appearance of buildings.
Tensile strength is irrelevant to the durability of materials.
Tensile strength is significant in building materials as it ensures structural integrity and safety by determining the load-bearing capacity.
Which plastic is commonly used for pipes due to its strength?
PE
ABS
PP
PVC
What property of wood allows it to be easily shaped?
Natural resistance to decay
High density of lignin
Flexibility of cellulose fibers
Inherent moisture content
How does the weight of metals influence their application in buildings?
Heavier metals are used for structural support, while lighter metals are preferred for non-structural applications.
Lighter metals are used for foundations and load-bearing walls.
Heavier metals are always more expensive than lighter metals.
All metals have the same weight and application in buildings.
What is the impact of moisture on the properties of wood?
Moisture impacts wood by causing swelling, warping, shrinkage, and affecting its strength and stability.
Moisture makes wood lighter and more flexible.
Moisture has no effect on wood properties.
Moisture increases the durability of wood.
What is a disadvantage of using wood in construction?
High thermal insulation properties.
Low cost compared to steel.
Susceptibility to moisture and decay.
Ease of installation and handling.
How does the cost of metals compare to other building materials?
Metals are only used for decorative purposes and are not structural.
Metals have the same cost as wood and concrete.
Metals are typically more expensive than wood and concrete but provide greater strength and durability.
Metals are cheaper than all other building materials.
A mixture of two or more metals and a non-metal in a molten state that, once solidified at room temperature, mantains its metallic properties:
Alloy
Ferrous Metal
Cast Iron
What property of a material determines how well it can resist heat?
Density
Thermal expansion
Electrical conductivity
Thermal conductivity
a. Explain the following working properties of resistant materials.
I. Malleability II. Brittleness. III.Elasticity
b. State three types of sand used at the building site.
c. Explain the term Body odour.
d. What is Hyperhidrosis.
e. Another name given to Bad Body Odour is________
a. Define deforestation.
b. Identify any four causes of deforestation.
c. Choose any of the following appropriate materials and demonstrate how to use to prevent Bad Body Odour
I. Baking powder. II. Cedar vinegar. III. Lime and ash.
3. a. Mr Sarfo, a professional teacher wants to build his house at his building site. As a career technology student, state three types of construction materials he will be needing to build his house.
b. State two properties each of the construction materials stated above.
