material properties
what is the property Insulation ?
The ability to retain heat or electricity
define what ferrous means
ferrous metals contain iron
Name one common softwood
red deal or white deal, pine etc
why do we keep the plastic flim on the outside of the plastic we use in the tech room
To protect the plastic from scratching
Give an example of a material we use in technology!
wood,plastics , fabrics, composites etc...
what is the property Elasticity?
something can be deformed and return to its original shape
What is an alloy?
A mixture of two or more metals
What is a manufactured/engineered wood?
This wood is made by gluing layers or small layers of wood together
explain why we use plastic in clothes!
We use plastics in clothes to make them longer wear and waterproof
what is a smart material?
these materials can change their properties in response to the environment
define Hardness
A material that can resist a dent or scratch
what colour is copper ?
reddish/brown
name 2 hardwoods
Oak,Maple ,Ash etc..
give me two examples of a thermoplastic!
Polyethylene, polyvinyl chloride, polystyrene, acrylic, nylon, and Teflon are examples of thermoplastics.
what is a synthetic fibre ?
are a fabric made from plastics/man made materials
define Malleability
something that can be beaten or stretched out in all directions without breaking
what is steel made from ?
Carbon and iron
Name one safety consideration you must think of when working with wood
Inhaling dust or splinters
what is a thermosetting plastic ?
a plastic that can be soften by heat only once
list 3 synthetic and 3 natural fabrics
synthetic -
Natural
Name 3 different properties of steel
Strength , hardness Conductivity etc..
Are these materials an alloy?
- aluminum , - bronze, - Copper
- no, - yes, -No
explain what plywood looks like?
layers of wood glued on top of eachother
is polypropylene a thermoplastic or thermosetting plastic
it is a thermoplastics
what is kelvar?
Kevlar is a fiber with incredible strength! it is a fabric commonly used in