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• 【題組】65. The device of potentiometer is used to change its(A) voltage (B) current(C) resistance (D) i
• 【題組】66. Hair dryer is a common device in people’s daily life. How much power does it mostlikely take
• 【題組】67. The following figure is a Light-Emitting Diode (LED), and it will lit if (A) Va＜Vb(B) Va＝Vb(
• 2. 一倉庫高 20 m、寬 40 m，在倉庫前某處 A 點以初速 拋出一石塊過屋頂，試問：(1) A 距倉庫前多少距離，所需初速vo會為最小值？(g=10m/s2，4 分)【題組】(1) A 距倉庫
• 【題組】(2) 承(1)題，初速vo最小值為何？(答案須包含量值與方向，4 分)
• 1. 半化期分別為 20 天與 30 天的兩核種(A、B)，若起始的原子個數相同，經過 50 天的衰變後，核種原子個數比例(A/B)為下列何者？ (A) 0.17 (B) 0.43 (C) 0.56
• 10. 下列「單斜面」輔助視圖的畫法，何者正確？(A) (B) (C) (D)
• 3. 若採用接近主軸的光線，也就是採用極小的孔徑角，這樣球面鏡就會近似拋物面鏡，可以不考慮球面像差。若球面鏡的曲率半徑為 r，則焦距 f 近似於，試證明之。(8 分)
• 9、某案的基礎版(FS)施工圖如圖(4)所示，已知該工程已經完成基礎開挖，開挖深度如圖中標註，且後續須進行 10cm 厚的 2000psi PC 薄層澆注，作為 PC 完成面。若已知基礎版厚 T=25
• 68. Arduino is an open-source hardware and software company, project, and usercommunity that designs
• 69. No system is perfect in the world. Whenever there is a change in a system, energy istransferred
• 70. Which of the following mathematical relationship between Watt and Joule is correct？(A) Watt＝Joul
• 71. Checking the color code of a resistor can help us determine(A) the length of its appearance(B) t
• 72. Conducting electric circuit analysis does not need the theory or principle of(A) Kirchhoff'
• 73. The elements of sensors and controllers in electromechanics are important elements andapplied to
• 74. Ohm’s law describe the relationship among(A) Conductance, Voltage, and Current(B) Voltage, Curre
• 75. Please find the best answer for this question. In the electrical circuit, the resistance of ares
• 8. 矩陣 ，若有兩矩陣 P、Q 且滿足 ，且 A4 = aP + bQ ，試求為 _______ 。
• 76. In the diagram, the resistance of the light bulb is 2 ohm and the resistor is 2 ohm. If thevolta
• 4. 宇宙飛船繞地球(質量 M)中心作等速率圓周運動，飛船質量為 m，軌道半徑為 2R，R 為地球半徑。現將飛船轉移到另一半徑為 4R 的新軌道上，如圖 7所示，試問：【題組】(1)轉移所須的最小能量
• 9.已知一圓上有 A、B、C 三點，且 ，如下圖： 問此圓的半徑為何？(A) 3(B) 4(C) 5(D) 7
• 77. Augmented reality (AR) and virtual reality (VR) are technology adopted to aid humanin learning a
• 78. Digitalizing analogy signal is an important step in the digital world to provide highquality inf
• 79. STEM is a term describing Science, Technology, Engineering, and Mathematics, withthe aim of grou
• 80. Capacitors store and release electric charge, and capacitors store energy in the electricfield.