16.The process the air undergoes as it descends is approximately
(A) isothermal
(B) isobaric
(C) adiabatic
(D) constant-volume
(E) free expansion.

17. During this process, (A) the internal energy of the air considered decreases (B) the internal energy of the air increases (C) the air volume expands (D) the air pressure drops down (E) none of the above happens.

18. The constant-volume specific heat CV (heat capacity per mole) for a diatomic ideal gas is shown in the following figure. Which of the following statements is correct? (A) Electronic excitations can be largely triggered at 2000K (B) Vibrational motion ceases at 50K (C) Vibrational excitations can be largely triggered at 300K (D) Rotational motion can be rarely found at 50K (E) All of the above statements are correct.

19. Consider two Carnot engines connected in series. The efficiency for the first engine is ε₁ while the efficiency for the second engine is ε₂. What is the overall efficiency of the combined system? (A) ε₁ + ε₂ (B) ε₁ε₂ (C) (ε₁ + ε₂)/2 (D) (E) ε₁ + ε₂ − ε₁ε₂

20. What is the bulk modulus (i.e., inverse compressibility) for a diatomic ideal gas measured from adiabatic compression/expansion? (γ = 1.4 for a diatomic ideal gas; P: pressure; ρ: density; T: temperature) (A) γT/P (B) γP/ρ (C) γP (D) P (E) none of the above.

1. In the figure, a uniform rectangular crate 0.40 m wide and 1.0 m tall rests on a horizontal surface. The crate weighs 1000 N, and its center of gravity is at its geometric center. A horizontal force F is applied at a distance h above the floor. If h = 0.8 m, what minimum value of F is required to make the crate start to tip over? (Static friction is large enough that the crate does not start to slide.) (A) 500 N(B) 750 N(C) 250 N(D) 625 N(E) 1000 N

2. A record is dropped vertically onto a freely rotating turntable (kinetic energy of the record is negligible). Frictional forces act to bring the record and turntable to a common angular speed. If the rotational inertia of the record is 0.66 times that of the turntable, what percentage of the initial kinetic energy is lost?(A) 40%(B) 34%(C) 56%(D) 66%(E) 19%

3. A 15-g bullet is shot vertically into a 2-kg block. The block lifts upward 8.0 mm. The bullet penetrates the block and comes to rest in it in a time interval of 0.0010 s. Assume the force on the bullet is constant during penetration and that air resistance is negligible. The kinetic energy of the bullet lost in the block is closest to (A) 14 J(B) 21 J(C) 0.16 J(D) 0.0012 J(E) 10 J

4. A satellite is in circular orbit at an altitude of 2300 km above the surface of a nonrotating asteroid with an orbital speed of 5.9 km/s. The minimum speed needed to escape from the surface of the asteroid is 14.6 km/s. The mass of the asteroid is closest to(A) 3.0 × 10²⁴ kg(B) 9.0 × 10²³ kg(C) 1.0 × 10²⁴ kg(D) 2.0 × 10²⁴ kg(E) 4.0 × 10²⁴ kg

5. Is it possible for a system to have negative potential energy?(A) No, because this would have no physical meaning.(B) No, because the kinetic energy of a system must equal its potential energy.(C) Yes, as long as the kinetic energy is positive.(D) Yes, as long as the total energy is positive.(E) Yes, since the choice of the zero of potential energy is arbitrary.

6. An experimental rocket sits on its launching pad on earth pointing vertically upwards. Its total mass is 7×10⁶kg, of which 6.5 × 10⁶ kg is fuel. Its engines shoot exhaust downward at a rate of 2000 kg/s with a speed of 3000 m/s relative to the rocket. Calculate the approximate delay between ignition and lift off.(A) It never lifts off.(B) 53 minutes(C) 27 minutes(D) 1 minutes(E) No delay

115年 - 115 台灣聯合大學系統_學士班轉學考試_A3／A6：普通物理#142629

115年 - [無官方正解]115 國立臺灣大學_轉學生招生考試試題：普通物理學(A)#142625

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 - 114 國立嘉義大學_轉學生招生考試試題：普通物理#143735

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 - [非官方正解]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