Science 7 Unit D - Section 4

What is a margin of safety?

• the limits within which a structure's safety performance is not acceptable

• the limits within which a structure’s safety performance is felt to be acceptable.

• conditions a structure must meet after it is built to show it is performing to certain standards

• the limits set by the government to make money from people who don't follow rules

Which one of these joints relies on friction?

• Tape

• Glue

• Staple

• Welding

Which one of these is an environmental factor that designers need to take into account

• Cost

• Aesthetics

• Terrain Conditions

• Consumer Demand

What is an example of corrugation

• glass

• fabric

• cardboard

• hardwood flooring

What is an example of lamination?

• plywood

• cardboard

• fabric

• bulletin board

What is the climate condition that affects buildings in Northern Canada

• polar bear attacks

• cost of materials

• permafrost

What is ductility?

• How easily the material can be shaped

• How easily the material can be made into a wire

• How easily the material can be used to rescue ducks

• A tube or passageway in a building or machine for air, liquid, cables, etc.

What is plasticity

• How easily does the material break

• How easily can the material be made into a wire

• How easy is the material to shape

• How much the material can be compressed without breaking