AS Revision Questions

What property of a material describes its ability to conduct electricity?

• Thermal conductivity

• Malleability

• Electrical conductivity

• Plasticity

Answer explanation

The property of a material that describes its ability to conduct electricity is electrical conductivity.

Which property would be most important for materials used in making a heat sink?

• Elasticity

• Thermal conductivity

• Hardness

• Density

Answer explanation

Thermal conductivity is the most important property for materials used in making a heat sink as it determines how efficiently heat can be transferred through the material.

What does the mechanical property 'toughness' refer to?

• Ability to be stretched

• Resistance to breaking under stress

• Ability to return to original shape

• Surface hardness

Answer explanation

Toughness refers to the resistance to breaking under stress, making it the ability to withstand external forces without fracturing.

For an outdoor sculpture, which material property is most crucial?

• Aesthetic appeal

• Corrosion resistance

• Electrical conductivity

• Density

Answer explanation

Corrosion resistance is crucial for outdoor sculptures to withstand environmental elements and maintain longevity by preventing deterioration.

Which property describes a material's ability to withstand forces without permanent deformation?

• Strength

• Plasticity

• Hardness

• Brittleness

Answer explanation

Strength describes a material's ability to withstand forces without permanent deformation, making it the correct choice in this context.

What is a key consideration when selecting a material for batch production?

• Color variety

• Processing speed

• Aesthetic properties

• Cost effectiveness

Answer explanation

Cost effectiveness is a key consideration for batch production as it directly impacts the overall production costs and profitability.

Which property would be critical for electrical wiring?

• Thermal conductivity

• Electrical conductivity

• Opacity

• Elasticity

Answer explanation

Electrical conductivity is critical for electrical wiring as it allows the flow of electricity through the material.

In terms of material selection, what does 'availability' refer to?

• Low cost

• Local sourcing

• Wide color range

• Environmental impact

Answer explanation

Availability in material selection refers to local sourcing, ensuring the materials are easily accessible and reducing transportation costs.

What is the primary benefit of using stainless steel in kitchen appliances?

• Low cost

• Aesthetic appeal

• Non-corrosive

• Light weight

Answer explanation

The primary benefit of using stainless steel in kitchen appliances is that it is non-corrosive, making it resistant to rust and deterioration over time.

Which manufacturing process is suited for unique, custom-designed products?

• Mass production

• Batch production

• Continuous production

• One-off production

Answer explanation

One-off production is suited for unique, custom-designed products as it involves creating a single, custom item rather than mass producing identical products.