2. A circular object of mass m and of radius R rolls smoothly (without sliding) along a frictional incline, as shown in the right figure. In the following, which type of the object will roll with the highest acceleration?

(A) A ring (Rotational inertia about the center of mass I_cm = mR²)
(B) A solid sphere (_Icm = 2mR²/5)
(C) A spherical shell (I_cm = 2mR²/3)
(D) A disk (I_cm = mR²/2)
(E) The same.

3. Peter ties a stone to the end of a thin string (1-meter long), and swings it with a period 2-seconds. The central acceleration of the stone is approximately (m/s²): (A) 10 (B) 20 (C) 30 (D) 40 (E) 50

4. A sinusoidal wave is traveling on a string with velocity 0.4 m/s along the x direction. The displacement of the particles of the string is found to vary with time in the y direction according to the equation y(x,t) = 0.05 sin(kx − 2πt) m where k is the angular wave number of the wave. What is the wave length in meter of this wave? (A) 0.05 (B) 0.4 (C) 1 (D) 2π (E) 5π

5. Following the science fiction, earth is a hollow shell, and there is a cavity in the center of the earth as the inner world. According to gravitation theory, what is the gravity field in that inner world? (A) same as on the surface of the earth (B) linear function as the distance from the center (C) very small (D) proportional to 1/r² (E) proportional to 1/r

6. A disk rolls down a 30-degree slope without slipping. Given the inertial moment of a disk (mass M and radius R) I = MR²/2, please find the frictional force for the disk during rolling down: (A) 1 Mg (B) 1/2 Mg (C) 1/3 Mg (D) 1/6 Mg (E) 2/3 Mg

7. Connect three disks as shown in the following figure. Their centers form a regular triangle. Each disk of mass M, radius R has an inertial moment I = MR²/2 when rotating about the disk center. Calculate the total inertial moment of the three disks when rotating about the center of triangle (in unit of MR²). (A) 1.5 (B) 2.5 (C) 3.5 (D) 4.5 (E) 5.5

8. The intensity from a sound source is I. If another identical but independent sound source is placed next to it, what will be the change of intensity level? (A) 2 dB (B) 3 dB (C) 4 dB (D) 5 dB (E) 6 dB

9. Which of the following is a consequence of (or is implied by) the second law of thermodynamics: (A) for all cyclic processes we have ΔQ/T ＜ 0 (B) work cannot be completely converted to heat energy (C) heat energy cannot be completely converted to work (D) the reason all heat engine efficiencies are less than 100% is friction, which is unavoidable (E) in the Carnot engine, ΔS ＞ 0 for each cycle

10. As shown in the following, two large insulating parallel plates carry positive charge of equal magnitude, one positive and the other negative, that is distributed uniformly over their inner surfaces. Rank the points 1 through 5 according to the magnitude of the electric field at the points, least to greatest. (A) 1, 2, 3, 4, 5 (B) 5, 4, 3, 2, 1 (C) 1= 4 = 5, 2 = 3 (D) 2 = 3, 1 = 4 = 5 (E) 2 = 3, 1, 4 = 5

11. According to Hubble's Law the velocity of v of a galaxy moving away from Earth is proportional to its distance from Earth. Consider two galaxies one of which is twice as far away as the other from Earth at some instant of time. At subsequent times, the ratio of their distances to Earth will be: (A) 2 to 1. (B) greater than 2 to 1. (C) less than 2 to 1. (D) it depends on the specific time. (E) it depends on the positions of galaxies.

12. A person sits on a swing. When the person sits still, the swing oscillates back and forth at its natural frequency ω₀. If, instead, two people sit on the swing, the new natural frequency of the swing is (A) 4ω₀. (B) 3ω₀. (C) 2ω₀. (D) ω₀. (E) ω₀/2.

115年 - 115 台灣聯合大學系統_碩士班招生考試_物理類：普通物理#139676

115年 - [無官方正解]115 國立中山大學_碩士班考試入學招生考試試題_物理系：普通物理#138395

115年 - [無官方正解]115 國立臺灣大學_碩士班招生考試：普通物理學#137725

114年 - [無官方正解]114 國立成功大學_碩士班招生考試_物理學系：普通物理學#138760

114年 - [無官方正解]114 國立中山大學_碩士班招生考試試題_物理系：普通物理#137736

114年 - 114 台灣聯合大學系統_碩士班招生考試：普通物理#137733

114年 - 114 臺灣綜合大學系統_學士班轉學生聯合招生考試試題：普通物理Ａ#129365

114年 - 114 臺灣綜合大學系統_學士班轉學生聯合招生考試試題：普通物理Ｂ#129362

114年 - 114 臺灣綜合大學系統_學士班轉學生聯合招生考試試題：普通物理Ｃ#129360

114年 - [無官方正解]114 國立臺灣大學_轉學生招生考試試題：普通物理學(A)#128199