Composites

What composite is polyester resin reinforced with strands of glass fibres?

• Reinforced concrete

• Carbon fibre

• Glass reinforced plastic

• Kevlar

What is a solid material which contains two or more substances of different physical characteristics?

• Lamination
• Compote
• Composite
• Mixture

The most commonly used composite material in the world is _________________

• Slime
• Glue
• Concrete
• Steel

Composite material is used when filling a cavity in your mouth.

• True
• False

What is the definition of a composite?

• Composites are when you weld two or more metals together to form a new type of metal.

• Composites are a combination of two or more materials that are bonded together to improve their mechanical or physical properties.

• Composites are when you take 2 or more metals and fuse them through melting.

• Composites are when you take 2 or more matrix and mix them to create a new material.

True or False - Particle re-enforcing in composites is a less effective means of strengthening than fibre reinforcement

• True

• False

What is the matrix used to join carbon fibers?

• PVA

• Epoxy resin

• Cyanoacrylate

• Urea formaldehyde

What does GRP stand for?

• Glass rigid plastic

• Glued rigid polymer

• Glass reinforced polymer

• Glass reinforced plastic

Plywood has the following properties...

• Resistance to cracking, breaking, shrinking, twisting and warping

• Resistance to insects, moisture, mould

• Good weight strength ratio, comes in wider board sizes than solid wood, more economical than using expensive solid wood

• Heavy and relatively weak, easy to cut and join

What must be used to reinforce concrete when making large structures?

• Glass fiber

• Epoxy resin

• Graphene

• Steel reinforcement - steel bars