全港學生STEAM精英挑戰賽2026 – (聖公會白約翰會督中學 – 初中組)

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. 請老師預留30分鐘的時間用於學生比賽。我們嚴格遵守時間管理，以確保比賽的公平性和效率性。
  3. 請老師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. 請在開始後的30分鐘內完成試題。

Pre-match Notes:

  1. This competition will include 20 multiple-choice questions. Participants must choose one correct answer from five options.
  2. Teachers are requested to reserve 30 minutes for the student competition. We strictly adhere to time management to ensure fairness and efficiency.
  3. Teachers and participants are asked to remain calm during the competition and not rush to finish.
  4. Once you enter the webpage, the timer will start counting down immediately, so please make sure you are ready before clicking the link.
  5. Each participant has only one chance to compete; please ensure you double-check your answers before submission. Resubmission will lead to disqualification, so please proceed with caution.
  6. Please complete the questions within 30 minutes after starting.
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

Silicone is chosen for kitchen utensils due to its: (矽膠被選為廚房用具是因為它的：)

2 / 20

What is the unit of energy used in electricity bills? (電費中使用的能量單位是什麼？)

3 / 20

What energy is primarily wasted in Traditional Braking Systems (TBS)?
傳統煞車系統（TBS）主要浪費哪種能量？

4 / 20

A city’s visitor count decreases at 5% annually. If there were 50,000 visitors in 2025, how many are projected for 2027? (一個城市的訪客數每年減少 5%。如果 2025 年有 50,000 名訪客，預計 2027 年會有多少？)

5 / 20

If Car A travels 3 meters in 2 seconds and Car B travels 5 meters in 3 seconds, which is faster?

如果車輛A在2秒內行駛3米，而車輛B在3秒內行駛5米，哪一輛更快？

6 / 20

If the angle of elevation is 30° and the height is 10 m, what is the distance? (如果仰角為 30°，高度為 10 m，距離是多少？)

7 / 20

Which food is high in sodium?
哪種食物鈉含量高？

8 / 20

A distance-measuring app uses angle of depression (θ) and height (h). The formula for distance is:
一個距離測量應用程序使用下視角 (θ) 和高度 (h)。距離的公式是：

9 / 20

To calculate speed, you need:
計算速度需要：

10 / 20

How many bits are in a byte? (一個字節有多少位？)

11 / 20

What force pulls objects toward Earth’s center?
什麼力把物體拉向地心？

12 / 20

To find the shortest path from point A to a river and then to point B, which geometric principle is applied? (要找到從 A 點到河流再到 B 點的最短路徑，應用哪個幾何原則？)

13 / 20

What is H₂O? (H₂O 是什麼？)

14 / 20

In a temperature-time graph for thermal devices, one brand shows a slower cooling rate than another. Which metric is most effective for comparing their cooling performances?
在熱設備的溫度-時間圖中，一個品牌的冷卻速度比另一個品牌慢。哪個指標最有效地比較它們的冷卻性能？

15 / 20

Why is safety important in engineering practice?
為什麼安全在工程實踐中很重要？

16 / 20

What is 3/4 expressed as a percentage?
3/4 用百分數表示是多少？

17 / 20

What does ‘CPU’ stand for? CPU代表什麼?

18 / 20

What is the boiling point of water at sea level? (海平面上水的沸點是多少？)

19 / 20

What is the volume of a cube with side length 3 cm? (邊長為 3 cm 的立方體的體積是多少？)

20 / 20

In a science experiment, a student named Ming measured the length of an object. His measured value is 30 centimeters, while the actual length is 28 centimeters. Ming wants to understand the accuracy of his measurement.
在一次科學實驗中，學生小明測量了一個物體的長度。他的測量值是 30 厘米，而實際的長度是 28 厘米。小明想要了解他的測量精確度。
(Tips: Error=Measured Value−Actual Value)

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