WorksheetsSmart Materials Quizs
Total questions: 20
Worksheet time: 10mins
What are the two ways in which Piezoelectric materials work?
Subject it to movement or stress and it produces electricity; Attach an electrical signal to it and it moves.
Subject it to heat and it produces sound; Attach a magnetic field to it and it vibrates.
Submerge it in water and it generates pressure; Connect it to a battery and it glows.
Expose it to light and it creates heat; Connect it to a capacitor and it stores energy.
What are smart materials designed to react to?
Internal Conditions
External Stimuli
Static Forces
Chemical Reactions
What are the uses of Piezoelectric materials?
Keypad sensors, alarm systems and microphones.
Solar panels and wind turbines.
Water purification systems.
Thermal insulation materials.
What do they alter in a response to a change in the environment?
Their function or aesthetic properties
Only their aesthetic properties
Only their function
Their color and texture
What is self healing concrete designed to do?
Designed to avoid stress cracks filling with water.
Designed to enhance the strength of concrete
Designed to reduce the weight of concrete
Designed to improve the color of concrete
What is the main property of a Thermochromic?
Change colour when temperature changes.
Remain the same color regardless of temperature.
Change shape when temperature changes.
Absorb heat without changing color.
What is a Photochromic?
A material that changes colour when exposed to different UV levels.
A type of lens that blocks all light.
A chemical that glows in the dark.
A material that becomes transparent when heated.
What are the uses of Self Healing Concrete?
Construction and engineering materials.
Artistic sculptures and decorations.
Household cleaning products.
Agricultural fertilizers.
What can some of the stimuli include?
Pressure, Electricity, Moisture, PH level
Temperature, Sound, Gravity, Vibration
Color, Shape, Size, Texture
Taste, Smell, Flavor, Aroma
What is a self healing polymer?
A polymer that can change color when exposed to heat.
A polymer that reacts to stress fractures by releasing a resin into the new crack.
A polymer that can conduct electricity when stretched.
A polymer that becomes stronger when exposed to water.
What is a SMA used in?
Used in dentistry for braces and frames for spectacles.
Used exclusively in aerospace applications.
Used in the manufacturing of electronic devices.
Used only in automotive engineering.
What is Polymorph and what temperature does it need to be heated to?
A polymer that can be shaped and reshaped many times using only hand pressure and becomes flexible at 62°C
A type of plastic that melts at 100°C and can only be shaped once
A metal alloy that can be molded at room temperature
A ceramic material that requires 150°C to become pliable
What is Thermochromic?
Materials that change colour with a change in temperature
Materials that change shape with a change in temperature
Materials that emit light when heated
Materials that absorb sound when cooled
What is used to trigger a response in its shape in an SMA?
Heat or electricity
Magnetic fields
Pressure changes
Chemical reactions
What are the uses of a Photochromic material?
Glasses, textile printing inks and novelty toys.
Construction materials, automotive parts, and electronics.
Food packaging, medical devices, and insulation.
Cosmetics, perfumes, and cleaning products.
What are Polymorphs properties?
Biodegradable, non-toxic and can be coloured.
Highly flammable and toxic.
Insoluble in water and metallic.
Radioactive and corrosive.
What are the uses of Thermochromic materials?
Fever scan strips used on infants, Room thermometers, Children's cutlery and crockery, Novelty goods and colour changing clothing
Only used in novelty goods and color changing clothing
Primarily used in electronic devices and batteries
Mainly used for insulation in buildings
What are polymorphs uses?
Making bespoke shapes such as ergonomic handles
Creating complex algorithms for software
Designing user interfaces for applications
Developing high-speed internet connections
What is a Self healing concrete?
A type of concrete that can repair itself using bacteria and calcium carbonate
Concrete that is mixed with special polymers to enhance flexibility
A concrete that changes color when it gets wet
Concrete that is made from recycled materials only
What does SMA stand for and what does it do?
Shape Memory Alloy - They revert back to their original shape after being deformed by heat or another external stimulus.
Super Memory Alloy - They maintain their shape regardless of temperature changes.
Shape Modifying Alloy - They change shape permanently when heated.
Static Memory Alloy - They are used for static structures and do not change shape.
