Characteristics of Synthetic Fibres

IMPORTANT

Characteristics of Synthetic Fibres: Overview

This topic contains concepts like Characteristics of Synthetic Fibres, Quick Dry Nature of Synthetic Fibres, Durable Nature of Synthetic Fibres and Cost- Efficient Synthetic Fibres.

Important Questions on Characteristics of Synthetic Fibres

MEDIUM

IMPORTANT

Science>Synthetic Fibres and Plastics>Characteristics of Synthetic Fibres> Q 1

Four friends discuss ways to find out if the fabric is made of natural or synthetic fibres. The table lists their suggestions.

Friend	Suggestion
Tina	Colour the fabric and check how well it retains colour
Amit	Burn the fabric and check if it melts or burns
Sania	Soak the fabric in water and check if it absorbs water
Mahesh	Tear the fabric and check how strong the fabric is

Who made the correct suggestion?

EASY

IMPORTANT

Science>Synthetic Fibres and Plastics>Characteristics of Synthetic Fibres> Q 2

Ameeta ties four strings made of different materials to a wall. She then pulls each string until it breaks. The arrow shows the direction of the force.

Question Image

The table shows the amount of force needed to break each string.

String	Amount of force needed to break the string (Newton)
String $1$	$10$
String $2$	$2$
String $3$	$14$
String $4$	$4$

What must Ameeta keep the same in her activity?

EASY

IMPORTANT

Science>Synthetic Fibres and Plastics>Characteristics of Synthetic Fibres> Q 3

Ameeta ties four strings made of different materials to a wall. She then pulls each string until it breaks. The arrow shows the direction of the force.

Question Image

The table shows the amount of force needed to break each string.

String	Amount of force needed to break the string (Newton)
String $1$	$10$
String $2$	$2$
String $3$	$14$
String $4$	$4$

Which string is made of the strongest fibre?

EASY

IMPORTANT

Science>Synthetic Fibres and Plastics>Characteristics of Synthetic Fibres> Q 4

Sujoy had four different fabrics. He lit each fabric on fire and observed what happened.

Fabric $1$	Fabric $2$	Fabric $3$	Fabric $4$
Burned completely, some ash left behind	Melted into a sticky substance	Burned completely, some ash left behind	Melted into a sticky substance

Which of the following activities is dangerous while wearing a shirt made of fabric

2

MEDIUM

IMPORTANT

Science>Synthetic Fibres and Plastics>Characteristics of Synthetic Fibres> Q 5

Sujoy had four different fabrics. He lit each fabric on fire and observed what happened.

Fabric $1$	Fabric $2$	Fabric $3$	Fabric $4$
Burned completely, some ash left behind	Melted into a sticky substance	Burned completely, some ash left behind	Melted into a sticky substance