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Smart Materials and Systems

Authored by Ed Dixon

Design

10th Grade

Used 11+ times

Smart Materials and Systems
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which one of the following smart materials does not react to electricity?

Shape memory alloy

Quantum tunnelling compound

Thermochromic pigment

Piezoelectric material

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which smart material can be both a conductor and an insulator?

Piezoelectric material

Quantum tunnelling compound

Shape memory alloy

Thermochromic pigment

3.

OPEN ENDED QUESTION

3 mins • Ungraded

Explain one disadvantages of using photochromic particles with self-darkening glasses.

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4.

FILL IN THE BLANK QUESTION

1 min • 1 pt

The following question is about the shape memory alloy, nitinol.

Nitinol is an alloy of nickel and which other metal?

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which one of the following components is used to detect light levels?

Resistor

LDR

Thermistor

LED

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which one of the following is an output component?

Speaker

PTM switch

Pressure pad

Microphone

7.

OPEN ENDED QUESTION

3 mins • Ungraded

Explain the functional difference between a closed loop system and an open loop system.

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