AAB_AS_Ques

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闹熏白
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1 HONG KONG SCIENCE MUSEUM. SPECIAL EXHIBITION activity sheet Presented by Jointly organised by

2 1 The Parts of an Aircraft Do you know the names of each part of an aircraft? Try to fill out the boxes! 1

3 2 The Principles of Flight Do you know the forces exerting on a flying aircraft? Think about how these forces are generated. Do you know the principle behind flying in the sky? Bernoulli s Principle states that an increase in the speed of air occurs with a decrease in air pressure. The upper part of the wing is and the bottom. Therefore, the air flows over the top of the wing. The pressure exerted on the top of the wing is than that on the bottom. This creates the. You can visit our Transportation Hall to get more information! 2

4 3 數字遊戲 Play with Numbers! 試從展覽中找出相關資料填上空格 Try to find the related information from the exhibition and fill in the blanks below. 赫利俄斯二號探測機的速度: The speed of Helios II probe: 游隼的速度: The speed of a Peregrine falcon: 公里/秒 km/s 國際太空站運行軌道的平均高度: The average altitude of the International Space Station in Earth orbit: 火星與地球最接近的距離: The closest distance of Mars from Earth: 香港與倫敦之間的飛行距離為5,969英里一隻游隼以其最高速度不停地飛牠要用多少時間才可以由香港飛抵倫敦 The flying distance from Hong Kong to London is 5,969 miles. How long does it take for a Peregrine falcon to fly from Hong Kong to London, suppose it is flying non-stop at its highest speed? 倫敦 London 香港 Hong Kong 游隼的速度 Speed of Peregrine falcon: 公里/秒km/s 香港與倫敦之間的距離 Distance between Hong Kong and London: 5,969 英里 miles = = 公里 km 所需時間 Time needed: 小提示 Little tips: 1 英里 mile = 1.61 公里 kilometres 速率 Speed = 距離 Distance 時間 Time 3

4 Smart Flying Nowadays, scientists are developing new aerospace materials so that we could fly smarter.

Carbon nanotube Very light, yet incredibly strong, this springy material may change the way how aircrafts and

Carbon fibre composite This can be used to make cables that are even stronger than those made from steel.

Science (2011) Metallic microlattice This metal is most commonly seen in aircraft structures.

5 4 Smart Flying Nowadays, scientists are developing new aerospace materials so that we could fly smarter. Try to match the materials introduced in the exhibition on the left to the descriptions on the right. Carbon nanotube Very light, yet incredibly strong, this springy material may change the way how aircrafts and other buildings are constructed. Carbon fibre composite This can be used to make cables that are even stronger than those made from steel. *Schaedler, T. A., et al. Science (2011) Metallic microlattice This metal is most commonly seen in aircraft structures. Aluminium This material is replacing traditional metallic material to build aircrafts due to its remarkable lightness. * Figure adapted from Schaedler, T. A., Jacobsen, A. J., Torrents, A., Sorensen, A. E., Lian, J., Greer, J. R., Valdevit, L. & Carter, W. B. (2011). Ultralight metallic microlattices. Science, 334(6058),

6 5 Astronauts Challenges The harsh environment in space poses different difficulties to astronauts. Even a seemingly trivial mistake can put their lives at risk. What challenges do astronauts have to face during their space journey? 5

6 Biomimicry We learn from ideas of nature to help solve our complex

Match the examples from nature below with the applications in aerospace on

Hummingbird Hummingbirds are small, light in weight and highly maneuverable.

Bird migrations The air currents created by one bird in a V-formation help

Honeycomb The six-sided cells of the honeycomb have been known for centuries

Owl feathers Serrated feathers along the edges of owl wings allow the birds

7 6 Biomimicry We learn from ideas of nature to help solve our complex problems. It is called biomimicry. Match the examples from nature below with the applications in aerospace on the next page. Hummingbird Hummingbirds are small, light in weight and highly maneuverable. They can change directions quickly, hover and fly sideways. Bird migrations The air currents created by one bird in a V-formation help lifting the one behind it, so the latter does not have to work as hard. Honeycomb The six-sided cells of the honeycomb have been known for centuries as strong yet lightweight structures. Owl feathers Serrated feathers along the edges of owl wings allow the birds to fly silently and dampen the sounds the bird makes while swooping toward its prey. Spider webs (Kevlar) Scientists know that spider silk is one of the strongest materials on Earth. It is five times stronger than piano wire or Kevlar, the material used in bullet-proof vests. Bumblebees Many plants on Earth, including our food crops, rely on the pollinating power of bees and other flying insects. 6

8 Swarms of tiny RoboBees with flapping wings could be shipped to the greenhouse on Mars. Their sensors will be able to identify flower types and where to land on a flower in order to pollinate food crops. V Engineers developed a jagged nozzle that fits onto the back of jet engines. The shape of the nozzle reduces the amount of noise created by the jet. Scientists and engineers are researching on the possibility of building cable cars that stretch above the Earth with the use of super-strong carbon nanotube cables. Some unmanned aerial vehicles have flapping wings. They can change directions quickly and navigate tight spaces. Hexagons have been used for years on big and small projects in aeronautical research and construction. They are featured in everything from floor panels to wind tunnels to nanotubes % The test results from US Air Force and Boeing showed that formation flight could cut fuel consumption by 10-20%. 7

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國立桃園高中96學年度新生始業輔導新生手冊目錄彰化考區 104 年國中教育會考簡章簡章核定文號 : 彰化縣政府 104 年 01 月 27 日府教學字第 1040027611 號函中華民國 104 年 2 月 9 日彰化考區 104 年國中教育會考試務會編印主辦學校 : 國立鹿港高級中學地址 :50546 彰化縣鹿港鎮