Smart, Modern And Alternative Materials
Bayani Gaba-gaba
Some materials do not just sit there - they respond. A mug that changes colour when hot coffee is poured in, a pair of spectacle lenses that darken in sunlight, a metal wire that remembers its shape and springs back when warmed: these are smart materials, whose properties change in a useful, reversible way when something in their environment changes. Alongside them sit modern and alternative materials such as graphene, Kevlar and bamboo that are reshaping what designers can make.
This note develops the 0445 Materials-option awareness of smart, modern and alternative materials: the chromic materials that change colour with heat, light or water; polymorph, the polymer you can mould by hand; shape memory alloys and polymers that remember a form; biopolymers and bamboo as renewable alternatives; and the high-performance modern materials graphene, Kevlar and metal foam. Each is explained with the trigger it responds to and a real product it makes possible.
Manufura
- develop an awareness and understanding of smart, modern and alternative materials, for example: - thermochromic materials - photochromic materials - hydrochromic materials - polymorph - shape memory alloys (SMA) - shape memory polymers (SMP) - biopolymers - bamboo - graphene - Kevlar® - metal foam.
Takardar Darasi
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Zazzage manhajar Green Bridge CBT a wayar ka ko kwamfyuta ka don samun cikakkiyar bayanan darasi, tambayoyin aiki, da ƙari.
Nazarin Darasi
Barka da kammala darasi akan Smart, Modern And Alternative Materials. Yanzu da kuka bincika mahimman raayoyi da raayoyi, lokaci yayi da zaku gwada ilimin ku. Wannan sashe yana ba da ayyuka iri-iri Tambayoyin da aka tsara don ƙarfafa fahimtar ku da kuma taimaka muku auna fahimtar ku game da kayan.
Za ka gamu da haɗe-haɗen nau'ikan tambayoyi, ciki har da tambayoyin zaɓi da yawa, tambayoyin gajeren amsa, da tambayoyin rubutu. Kowace tambaya an ƙirƙira ta da kyau don auna fannoni daban-daban na iliminka da ƙwarewar tunani mai zurfi.
Yi wannan ɓangaren na kimantawa a matsayin wata dama don ƙarfafa fahimtarka kan batun kuma don gano duk wani yanki da kake buƙatar ƙarin karatu. Kada ka yanke ƙauna da duk wani ƙalubale da ka fuskanta; maimakon haka, ka kallesu a matsayin damar haɓaka da ingantawa.
- Which smart material changes colour in response to a change in temperature? A. Photochromic B. Hydrochromic C. Thermochromic D. Polymorph Answer: C
- Spectacle lenses that darken automatically in bright sunlight use which type of smart material? A. Thermochromic B. Photochromic C. Shape memory alloy D. Metal foam Answer: B
- What is the key behaviour of a shape memory alloy such as Nitinol? A. It changes colour when heated B. It returns to a remembered shape when heated above a certain temperature C. It dissolves in water D. It becomes permanently soft when cooled Answer: B
- Which statement about graphene is correct? A. It is a heavy metal alloy B. It is a single layer of carbon atoms that is strong, light and an excellent conductor C. It is a slow-grown hardwood D. It is a thermosetting resin Answer: B
- Why is bamboo considered a sustainable alternative material? A. It is a metal that never corrodes B. It is a fast-growing grass that regrows quickly after cutting, yet is strong and stiff C. It is made from recycled oil D. It cannot be used for furniture Answer: B
Akwai a cikin manhajar Green Bridge
Zazzage manhajar Green Bridge CBT a wayar ka ko kwamfyuta ka don samun cikakkiyar bayanan darasi, tambayoyin aiki, da ƙari.
Akwai a cikin manhajar Green Bridge
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Yi Aikin Tambayoyin Gwaji
Kana son yin aikin tambayoyin gwaji kan Smart, Modern And Alternative Materials? Sauke manhajar Green Bridge CBT don samun tambayoyin gwaji da cikakkun jarrabawa akan wannan batu.
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