Y8 Synthetic Materials/Fabrics

Question 1

Name some properties of polyester

Answer 1

Strong, hard wearing, low flammability, good elasticity, cheap, resists creasing, dries quickly, not absorbent, not biodegradable, melts as it burns (so harmful if clothes catch fire)

Question 2

Name some properties of nylon

Answer 2

High tensile strength, good elasticity, highly resistant to wear and abrasion, long lasting, water resistant, dries quickly, lightweight, heat resistant, will melt or deform

Question 3

What materials can tents be made out of?

Answer 3

Nylon, polyester, ripstop nylon, or natural materials like canvas and polycotton.

Question 4

What are knitted fabrics?

Answer 4

Knitted fabrics are made by interlocking one or more yarns together using loops. The loops trap air so they insulate. They stretch more than woven fabrics. Some uses: jumpers, socks, tshirts and general knitwear.

Question 5

What are woven fabrics?

Answer 5

Woven fabrics are made by interlacing (crossing alternately over and under) two sets of yarns – warp and weft (horizontal). Some uses: jeans, shirts, trousers, skirts, dresses.

Question 6

Absorbent

Answer 6

A fabric that soaks up liquid.

Question 7

Waterproof

Answer 7

A fabric that keeps water out.

Question 8

Cool

Answer 8

A fabric that keeps us from getting too hot. It is often a natural fibre like cotton.

Question 9

Breathable

Answer 9

Fabric that allows sweat to get out and evaporate. It lets the air get in and out.

Question 10

Warm

Answer 10

A fabric that provides insulation.

Question 11

Flammable

Answer 11

This is a fabric that can catch fire.

Question 12

High tensile strength

Answer 12

Fabric that is resistant to breaking under tension or
stretching forces.

Question 13

Abrasion

Answer 13

Damage caused by the fabric rubbing against itself or external materials.