IB DP DT Topic 4-2 Glass

The main component of glass is ...

• silium

• silica

• sodium

• boride

Some properties of glass are ...

• hard, tough, translucent

• soft, tough, transparent

• hard, brittle, translucent

• hard, brittle, transparent

Glass is moderately reactive to chemicals.

• True

• False

What characteristic makes glass suitable for use in hot drinks?

• Low Thermal Expansion

• Low Electrical Resistivity

• Low Thermal Conductivity

• High Thermal Conductivity

Glass can be used as a building material because of it's

• High Tensile strength

• High Compressive strength

• High Torque strength

• High Elasticity

What else other than sand is used to make glass?

• Soda, Lime

• Sodium, Borite

• Metal oxides, cullet

What type of glass does the image show?

• Tempered

• Laminated

Toughened or Tempered glass does what when it breaks?

• Breaks into sharp shards

• Forms a shatter but is kept held together

• Breaks into small, unsharp pieces

• Doesn't really break at all

Soda Glass is the most commonly used for disposable items, why?

• It's easy to make

• It's less expensive

• It's easy to recycle

• All of the above

Cullet is a term used to describe what?

• The offcuts and broken up pieces of glass, which is often used to make more glass.

• The machine used to make plate glass and cut it to the shape and size required.