Smart Materials and Systems
Authored by Ed Dixon
Design
10th Grade
Used 11+ times
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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 BLANKS 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?
(a)
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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