Smart Materials Flashcards
What are smart materials?
Materials that can change properties in response to external stimuli.
True or False: Smart materials can only respond to temperature changes.
False
Fill in the blank: One example of a smart material is __________.
shape memory alloys
What is the main characteristic of shape memory alloys?
They can return to a predetermined shape when heated.
What are piezoelectric materials used for?
To generate an electric charge in response to applied mechanical stress.
True or False: Thermochromic materials change color with temperature changes.
True
What is a common application of photochromic materials?
Sunglasses that darken in bright sunlight.
Which smart material can be used in self-healing applications?
Polymeric materials
Multiple Choice: Which of the following is NOT a smart material? A) Shape memory alloy B) Concrete C) Piezoelectric material
B) Concrete
What is the function of electrochromic materials?
They change color or opacity when an electric current is applied.
Fill in the blank: __________ materials can change their viscosity in response to stress.
Non-Newtonian
What property do magnetorheological fluids exhibit?
They change their viscosity in the presence of a magnetic field.
True or False: Smart materials can be used in wearable technology.
True
What is the purpose of using smart materials in design?
To create products that can adapt to their environment.
Which smart material is commonly used in robotics for movement?
Shape memory alloys
Multiple Choice: Which smart material is best for sound sensing? A) Piezoelectric B) Thermochromic C) Shape memory alloy
A) Piezoelectric
What does the term ‘self-healing’ refer to in smart materials?
The ability of a material to repair itself after damage.
Fill in the blank: __________ sensors can detect changes in pressure using piezoelectric materials.
Pressure
What is a key benefit of using smart materials in construction?
Increased energy efficiency and adaptability.
True or False: Smart materials can only be used in high-tech applications.
False
What type of smart material can be used for temperature sensing?
Thermocouples
Multiple Choice: Which of the following materials can change shape with temperature? A) Plastic B) Shape memory alloy C) Wood
B) Shape memory alloy
What role do smart materials play in the development of adaptive clothing?
They allow clothing to respond to environmental changes, enhancing comfort.
Fill in the blank: __________ materials can be used to create responsive surfaces in architecture.
Active
What is the importance of research in smart materials?
To discover new applications and improve existing materials.
