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Smart Materials Quiz

Authored by DNT 2020

Design

11th Grade

Used 1+ times

Smart Materials Quiz
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15 questions

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1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What is the defining characteristic of smart materials?

They are traditional materials

They are made of wood or metal

They exhibit a physical change in response to an external stimulus

They are modern materials

Answer explanation

The defining characteristic of smart materials is that they exhibit a physical change in response to an external stimulus, distinguishing them from traditional materials or modern materials.

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What is an example of a shape-memory alloy?

Nickel titanium (nitinol)

Copper

Steel

Aluminum

Answer explanation

An example of a shape-memory alloy is Nickel titanium (nitinol), which exhibits the ability to return to a predetermined shape when heated.

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What do thermochromic pigments do?

Change texture when wet

Change shape when pressure is applied

Change color when heated

Change color when exposed to light

Answer explanation

Thermochromic pigments change color when heated, not texture, shape, or when exposed to light.

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What is the purpose of photochromic pigments?

To change shape when heated

To change color when exposed to light

To conduct electricity when pressure is applied

To resist corrosion

Answer explanation

The purpose of photochromic pigments is to change color when exposed to light.

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What is the function of Quantum-tunnelling composite (QTC)?

To repair itself

To change color when heated

To insulate when resting and conduct when pressure is applied

To become malleable when heated

Answer explanation

To insulate when resting and conduct when pressure is applied

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What is a key feature of self-healing materials?

They change color when heated

They can repair themselves

They become malleable when heated

They resist corrosion

Answer explanation

A key feature of self-healing materials is that they can repair themselves, making them able to fix damage and extend their lifespan.

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What are ferrofluids used for?

To reduce friction

To repair cracks in concrete

To conduct electricity

To resist corrosion

Answer explanation

Ferrofluids are used to reduce friction, making them ideal for applications where smooth movement is required.

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