Plastics

The video explores the extensive use of plastic in everyday life, highlighting its versatility and properties. It explains how plastic is a synthetic polymer and discusses its ability to be molded into various shapes and sizes. The video also differentiates between thermoplastics and thermosetting plastics, explaining their reactions to heat and their applications in different products.

Which material is highlighted as being used most extensively in our daily lives?

• Wood

• Metal

• Plastic

• Glass

What is the primary reason plastic is considered versatile?

• It is biodegradable

• It is a natural material

• It can be molded into any shape and size

• It is expensive

Why is plastic used in the manufacturing of automobile parts?

• It is a good conductor of electricity

• It is heavy and strong

• It is light, strong, and durable

• It is reactive to air and water

What happens to thermoplastics when they are heated?

• They become soft and can be reshaped

• They harden and cannot be reshaped

• They remain unchanged

• They melt and cannot be reused

Which type of plastic is known for having strong cross-linked bonds?

• Bioplastics

• Recycled plastics

• Thermosetting plastics

• Thermoplastics

What is an example of a thermoplastic?

• Teflon

• Melamine

• Bakelite

• PVC

Why is bakelite used in electrical switches?

• It is a good conductor of electricity

• It is lightweight

• It is a bad conductor of heat and electricity

• It is flexible