Question detail

Which of the following statements is true about composites?

Try the question, check the answer, then read the explanation to understand the curriculum point.

Show answer Topic hub Objective page

At a glance

MCQ

Type

practice

Style

Topic

Using materials

Question

A. They are always made from metals.
B. They can be designed to have specific properties.
C. They cannot be used in construction.
D. They are less durable than pure materials.

Answer

The correct option is They can be designed to have specific properties.. This answer is correct because it matches the approved learning objective to describe a composite as a matrix or binder surrounding reinforcement fibres or fragments. (Chemistry only) in the subtopic Ceramics, polymers and composites.

Explanation

The correct option is They can be designed to have specific properties.. They can be designed to have specific properties. is correct because it directly supports the approved learning objective to describe a composite as a matrix or binder surrounding reinforcement fibres or fragments. (Chemistry only). This belongs to the subtopic Ceramics, polymers and composites within Using materials, so the explanation must stay tied to that curriculum context. The other options are incorrect because they either do not answer this learning objective, use a vague statement, or move away from Ceramics, polymers and composites.

Common mistake

Misunderstanding Composites

Students often confuse a composite with a single material, thinking it is just one type of substance rather than a combination.

Remember that a composite is made up of a matrix or binder that surrounds reinforcement fibres or fragments, combining different materials to enhance properties.

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