Write an activity to show that synthetic fibres are stronger than the cotton
fibres.
Answers
Answer:
One made of cotton (A Natural fibre) and the other made of nylon (A synthetic fibre). Attach one end of both the ropes to a rigid support. Now, on the other end, hang a particular amount of weight. Keep adding weights until the cotton thread breaks.
Answer:
Synthetic fibres are stronger because they are made by plastics and other materials.Nylon is an example of synthetic fibre which is used for making parachutes and ropes for rock climbing.Activity -
Activity -Take threads of cotton and nylon(synthetic fibres) of about same length and thickness.. Hang cotton, thread from a stand. Attach a pan at the other end of the thread.Add weights, one by one, to the pan until the thread breaks (see fig.) note the total weight required to break the cotton thread. This gives a measure of the tensile strength of the thread. Repeat the same with nylon thread.
CONCLUSION
Much more weight is required to break the nylon thread showing that nylon thread has a grater strength that the cotton thread.