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全港學生STEAM精英挑戰賽2025 – 高中組

賽前注意事項:

  • 1. 本次比賽將包含20條選擇題。參賽者需在五個選擇內選一個正確的。
  • 2. 請家長預留60分鐘的時間用於比賽。我們嚴格遵守時間管理，以確保比賽的公平性和效率性。
  • 3. 請家長和參賽者在比賽期間保持冷靜，不必急於完成。
  • 4. 一旦進入網頁，計時器將立即開始倒數計時，所以請確保在按下連結之前已經準備妥當。
  • 5. 每位參賽者只有一次機會進行比賽，請確保在提交答案前仔細確認。重複提交將導致資格被取消，請謹慎操作。
  • 6. 在參賽者作答期間，請確保錄影能夠完整地捕捉參賽者的畫面。請將鏡頭正面對準，以清晰地拍攝參賽者的上半身和面部，同時保持面對鏡頭的正確姿勢。這將有助於評審更好地評估參賽者的表現。
  • 7. 參賽者家長可以使用智能手機或攝錄機進行錄影，請確保在安靜的環境下進行拍攝。請注意，影片不得進行任何形式的剪輯或後期製作，以確保比賽的公平性和一致性，否則將取消資格。
  • 8. 請在開始後的60分鐘內完成試題，完成後請把做提片段以WhatsApp發送給我們。如果文件太大可以先上載到YouTube或Google Drive再分享連結給我們，並把影片保留到公佈結果之後。這將有助於確保比賽結果的真實性和公正性。
  • 9. 家長可以在電腦上協助幼兒在電腦上操作，例如重播錄音給參賽者聽，但請務必不要提示答案。這樣能夠尊重比賽的精神，讓參賽者獨立思考和解答題目。

Pre-match Notes:

  • 1. This competition will consist of 20 multiple-choice questions. Participants need to select one correct answer from the five options.
  • 2. Please allocate 60 minutes of time for you participation in the competition. We strictly adhere to time management to ensure fairness and efficiency in the competition.
  • 3. Please maintain calmness during the competition, both for parents and participants. There is no need to rush to finish.
  • 4. Once you enter the webpage, the timer will start counting down immediately, so please ensure that you are prepared before clicking the link.
  • 5. Each participant has only one opportunity to take part in the competition, so please carefully review your answers before submitting. Multiple submissions will result in disqualification, so please exercise caution.
  • 6. During the participant’s answering period, please ensure that the recording captures the participant’s screen completely. Please position the camera directly in front to capture the upper body and face of the participant clearly, while maintaining the correct posture facing the camera. This will help the judges evaluate the participant’s performance better.
  • 7. Participants’ parents can use smartphones or cameras for recording, please ensure a quiet environment for shooting. Please note that the video should not undergo any form of editing or post-production to ensure fairness and consistency in the competition. Otherwise, the qualification will be revoked.
  • 8. Please complete the test within 60 minutes after the start. After the competition completed, please whatsapp us the video, if the video size is too large to send through whatsapp you may upload to Youtube or Google Drive and then share us the link. Please keep the video file until result announced. This will help ensure the authenticity and fairness of the competition results.
  • 9. Parents can assist younger participants in operating the computer, such as pressing the replay button for participants to listen to, but please be sure not to provide any answer prompts. This will respect the spirit of the competition and allow participants to think independently and answer the questions.

請輸入密碼。Please enter password.

請先輸入參賽者和家長資料,資料必須與登記比賽申請表的資料一致。之後家長準備好在旁用手機拍攝做提過程，再按下頁開始：
Please enter participant and parent information, the information must be the same as application. Then parent gets ready to take video using mobile phone, then press Next button to start:

1 / 20

Which of the following is an essential step in the engineering design process?
以下哪項是工程設計過程中的關鍵步驟？

2 / 20

To make 1L of 1:99 bleach solution from a 5.25% stock, how much bleach is needed? (要從 5.25% 的原液製作 1 L 的 1:99 漂白水，需要多少漂白劑？)

3 / 20

Why might a mathematical model fail to match real-world data?
為什麼數學模型可能與現實數據不符？

4 / 20

Which theorem states that the perpendicular bisector of a chord passes through the center of a circle?
哪個定理指出弦的垂直平分線會通過圓心？

5 / 20

A farmer wants to minimize the total distance from his field (A) to a river (MN) and then home (B)). Which condition must point P on MN satisfy?
一位農民希望最小化從他的田地 (A) 到河流 (MN) 然後到家 (B) 的總距離。點 P 在 MN 上必須滿足什麼條件？

6 / 20

In a normal distribution, about 68% of data lies within: (在正態分佈中，約 68% 的數據位於：)

7 / 20

A bacteria colony doubles every hour. Starting with 100 bacteria, the population after 5 hours is: (一個細菌群體每小時加倍。從 100 隻細菌開始，5 小時後的數量是：)

8 / 20

If a hemisphere has a radius of 3 cm, what is its volume? (如果半球的半徑為 3 cm，體積是多少？)

9 / 20

In a diet optimization problem, the objective function typically represents: (在飲食優化問題中，目標函數通常代表什麼？)

10 / 20

Which material is flexible and heat-resistant? (哪種材料具有靈活性和耐熱性？)

11 / 20

Which of the following is an application of microorganisms in food production?
以下哪一項是微生物在食品生產中的應用？

12 / 20

Nuclear power plants have near-zero emissions of: (核電廠的排放接近零的氣體是：)

13 / 20

Which scenario best exemplifies exponential growth?
以下哪種情境最能體現指數增長？

14 / 20

In a nutrition optimization problem using 2 food items, if:
Hamburger costs $12 each and provides 512 kcal
Soya drink costs $5 each and provides 128 kcal
What is the correct objective function to minimize total cost (C)?**
Let x be the serving quantity of Beef Hamburger and y be the service quantity of Malted Soya Milk, while $ C be the total amount of the food taken.

**在營養優化問題中使用2種食物時，若：
漢堡每個12元，提供512大卡
豆奶每個5元，提供128大卡
下列哪項是「最小化總成本(C)」的正確目標函數？**
設 x 為牛肉漢堡的份數，y 為麥芽豆奶的份數，而 C 美元為所選食物的總花費。

15 / 20

What is the binary number 1010 in denary? (二進制數 1010 在十進制中是什麼？)

16 / 20

Which type of graph is best for showing categories or groups?
哪種圖表最適合顯示類別或組別？

17 / 20

In a nutrition optimization problem using 2 food items, if:
Hamburger costs $12 each and provides 512 kcal
Soya drink costs $5 each and provides 128 kcal
if daily energy requirement is ≥2,400 kcal, which inequality represents this constraint?
Let x be the serving quantity of Beef Hamburger and y be the service quantity of Malted Soya Milk, while $ C be the total amount of the food taken.

**在營養優化問題中使用2種食物時，若：
漢堡每個12元，提供512大卡
豆奶每個5元，提供128大卡
若每日熱量需求≥2,400大卡，正確的限制不等式為何？
設 x 為牛肉漢堡的份數，y 為麥芽豆奶的份數，而 C 美元為所選食物的總花費。

18 / 20

How many points are needed to find the center of a circle? (找圓心需要多少個點？)

19 / 20

What is the main ingredient in bleach? (漂白劑的主要成分是什麼？)

20 / 20

Which AI technique is commonly used in self-driving cars?
哪種 AI 技術常用於自動駕駛汽車？

Exit