Acknowledgements
特別致謝
Financial Support
Hong Kong Science and Technology Parks
香港科技園
On Hing Paper Holdings Ltd.
安興紙業集團有限公司
Solomon Systech Ltd.
晶門科技有限公司
The HK Electronic Industries Association Ltd.
香港電子業商會有限公司
The HK Electronic Industries Association Education Foundation Ltd.
香港電子業商會教育基金
ANON
Print Advising
印刷諮詢
HKUST Publishing Technology Centre
香港科技大學出版科技中心
Special Thanks to
特別感謝
Miss Catherine Wong
王志潔女士
測一測
Answers
答案
: a, d, d, a,
Never. The tide raises both the water and the boat so the water
will never reach the fifth rung.
永不。船和水面同時隨潮汐升起，梯子不會被淹沒。
54 miles/hr
每小時54英里
For detailed answers
and explanations,
please visit our website.
想了解更多，
請參觀我們的網站
Interested in science and writing?
Submit a science article for a chance to win
an Apple
iPad
AND have it published in
future issues of
Science Focus
! For more
competition details, please visit:
對科學和寫作有興趣？
提交以科學為題材的文章，你將有機
會贏得蘋果
iPad
乙部！得獎作品會在
未來「
科言
」中登出。若想了解更多比
賽詳情，請瀏覽「
科言
」的網站。
G16527
Not for Sale (
非賣品
)
Quiz
1. Which type of birds are the only birds that can distinguish the
colour blue?
以下哪種鳥類可以分辨藍色？
a. Owls
貓頭鷹
b. Blue Jays
藍松鴉
c. Sparrows
麻雀
d. Hawks
鷹
2. How long does it take for light to travel around the Earth?
光環繞地球轉一圈要多久？
a. 1.02 seconds
秒
b. 2.11 seconds
秒
c. 0.52 seconds
秒
d. 0.13 seconds
秒
3. How many bones are humans born with?
人體天生有多少根骨頭？
a. 199
b. 206
c. 254
d. 300
4. True or False: the second most lightest material on Earth is a
metal.
是非題：地球上第二最輕的物質是一種金屬。
a. True
是
b. False
非
5. A ship anchored in a port has a ladder which hangs over the
side. The length of the ladder is 200cm, the distance between
each rung is 20cm and the bottom rung touches the water.
The tide rises at a rate of 10 cm an hour. How long will it take
for the water to reach the fifth rung?
在港口停泊了一艘船，船側掛著梯子，長200厘米，梯級之
間的距離是20厘米，最底層梯級接觸水面。潮汐每小時上
升10厘米。須要多長時間，第五層梯級就會被水淹沒？
6. Car 1 started from Point A towards point B. At the same time
Car 2 started from point B towards A. They crossed each
other at point C. After which, Car 1 reached point B in another
9 hrs, and Car 2 reached point A in another 4 hrs. If both cars
maintained a constant speed throughout the journey, and
the speed of Car 1 was 36 miles/hr(mph), then what was the
speed of Car 2?
1號車從A點到B點。同時，2號車由B點到A點。兩車在C點相
遇。之後，1號車用了9個小時到達B點，2號車用了4個小時
到達A點。如果兩架車在路上的速度保持不變，而1號車的
速度是每小時36 英里，請問2號車的速度是多少？
© Published by
School of Science, HKUST
©
香港科技大學理學院出版
