Understanding Composites

The video explores the evolution of materials from natural resources to modern composites. It explains what composites are, their benefits, and how they are made by combining different materials. The video highlights the components of composites, such as matrix and reinforcement, and discusses their applications in various fields, including construction, aerospace, and everyday products. Composites offer enhanced strength, durability, and customization, making them integral to modern life.

What materials did early humans use to build shelters and tools?

• Glass and steel

• Earth, wood, and rocks

• Concrete and cement

• Plastic and metal

What was the result of adding straw to clay in brick making?

• A stronger brick

• A lighter brick

• A more colorful brick

• A weaker brick

What is a composite material?

• Two different materials combined

• A type of plastic

• A single material

• A type of metal

Why do we combine materials to create composites?

• To make them look better

• To create a new material with desired characteristics

• To make them more expensive

• To reduce their weight

What is the role of steel rebar in concrete?

• To change its color

• To increase its strength

• To make it lighter

• To make it more flexible

What are the two common components of all composites?

• Glass and steel

• Wood and fiber

• Plastic and metal

• Matrix and reinforcement

What is an example of a modern composite using resins as a matrix?

• Fiberglass

• Steel

• Concrete

• Wood

Which field has seen significant advancements in composites?

• Aerospace

• Agriculture

• Textiles

• Food industry

What are some specialized fibers used in aerospace composites?

• Cotton and wool

• Graphite, Boron, and Kevlar

• Silk and nylon

• Polyester and acrylic

Which of the following is NOT a common use of composites?

• Food packaging

• Toys

• Building materials

• Furniture