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109年 - 台聯大學士班轉學考 普通物理#99761

科目：轉學考-物理 | 年份：109年 | 選擇題數：25 | 申論題數：0

試卷資訊

所屬科目：轉學考-物理

選擇題 (25)

1. Which physical quantity is observed with the same result for all inertial reference frames? (A) The force； (B) The work； (C) The kinetic energy； (D) AIl； (E) None.

2. Which is not correct to apply Newton's60ed0d47a006e.jpg law?(A) All measurements should be made in an inertial reference frame； (B) The interacting particles can not be accelerating； (C) No virtual force (e.g., the Coriolis force) is involved； (D) All； (E) None.
3. A ball of mass m moves in a vertical circle at the end of a string. By how much is the tension at the bottom greater than that at the top? (A)0； (B) 2 mg； (C) 4 mg； (D) 6mg； (E) None.
4. If the energy needed to send an object (initially at rest on the earth's surface) to a maximum height H is a half of that for sending it into an orbit at the same height, what would be the value of H in terms of RE (the radius of the earth)? Ignore the earth's rotation. (A) 1/4； (B) 1/3； (C) 1/2； (D) 2/3； (E) None.
5. Which pair of vectors is not always in parallel? (A) Velocity & linear momentum； (B) Angular velocity & angular momentum； (C) Net force & acceleration； (D) All； (E) None.
6. What is the moment of inertia I for a uniform ring of radius R and mass M about an axis (perpendicular to the plane of ring) at its rim? (A)0.5 MR2； (B) MR2, (C) 1.5 MR2； (D) 2 MR2； (E) None.

7. A rope of mass M and length L hangs vertically.What is the time T needed for a pulse to travel from the bottom end to the support? (A)60ed0dd494094.jpg (B) 60ed0df6d4d7c.jpg (C) 60ed0e15770cb.jpg (D) 2 (Lig)； (E) None.
8. Which statement is not correct for the 'shear modulus"?(A) It has the same dimension as the "pressure"； (B) It involves the application of two parallel forces of opposite directions along the same line； (C) It can not be defined for an ideal fluid； (D) All； (E) None.
9. Which statement is correct? (A) "Heat" is the energy of the random motion； (B) Neither "heat" nor "work" belongs to a system； (C) A "heat reservoir" possesses a lot of heat； (D) All； (E) None.

10. One mole of an ideal monatomic gas is taken around the reversible cycle shown in Figure.1 (on the right). What is the efficiency of this "heat engine"?
60ed0e5eb0ac5.jpg (A) 4/21； (B) 5/14； (C) 6/11； (D) 7/34； (E) None.

11. A point charge Q is placed at one corner of a Gaussian surface in the form of a cube of side L. What is the total "electric flux"- through this Gaussian surface in terms of Qlε o? (A) 0； (B) 1/8； (C) 3/4； (D) 5/6； (E) None.
12. Which is not correct for the dielectric constant ( x ) of a substance? (A) It is a measure of the response of its charges to an external electric field； (B) The capacitance of a capacitor can be enhan ced by a factor of n when filling with this substance； (C) k = 0 for an ideal conductor； (D) All； (E) None.

13. A conductor has a surface charge density σ C/m2. The force per unit area on the surface is (A)0；(B) σ2/2εo N/m2；(C) σ2/εo N/m2；(D)2σ2/εo N/m2；(E) None.
14. The "Hall potential difference" of a Hall device depends on (A) the local magnetic field； (B) the current； (C) the sign and concentration of charge carriers； (D) All； (E) None.
15. A particle of mass m and charge q is in a circular orbit (of radius R) normal to an external field B.What is proportional to the magnetic field created at the center of its orbit by the charge?(A) m； (B) q； (C) R； (D) B； (E) None.
16. Which is not among applications of the "eddy current"?(A) The braking system of a train； (B) Mutual attraction of metals； (C) Induction cooking； (D) Propulsion of trains； (E) None.

17. Which is not an appropriate pair of analogy between mechanical and electrical quantities of the oscillating systems?(A).x60ed0fa94a2ea.jpgQ；(B)v60ed0fa94a2ea.jpgI；(C)m60ed0fa94a2ea.jpgC；(D)F60ed0fa94a2ea.jpgV； (E) None.
18. The image by a convex mirror is always (A) erect； (B) reduced； (C) virtual； (D) AIl； (E) None.
19. A better resolution for the two headlights of a car in a picture can be achieved by reducing (A) the separation of the headlights； (B) the wavelength of light； (C) the aperture diameter of the camera lens； (D) All； (E) None.

20. A laser beam of intensity S and cross-sectional area A is completely absorbed by a particle of mass m for a period△t . What is the change in speed of the particle? (A)SA△t/ m c ； (B) SA△t /m ； (C) SA /mc ； (D) SA△t/ c ； (E) None.
21. Which statement is not correct for the lines of force (i.e., the "field lines")? (A) They never cross； (B) The field strength is constant along them； (C) The total number of them is proportional to the source charge； (D) Their density is proportional to the field strength； (E) None.
22. Which statement is not correct according to the "theory of special relativity'? (A) Whether two events at different locations are simultaneous depends on the frame； (B) The relative velocity of two objects never precede the speed of light； (C) The "effect" may appear to occur earlier than its "cause" as observed in some frames； (D) All； (E) None.
23. Which behavior in the "photoelectric effect' can also be explained by the wave theory of light? (A) There is a "threshold frequency" for the incident light； (B) The "stopping potential" is not dependent on the intensity of light； (C) The "photocurrent" is proportional to the intensity of light； (D) AIl. (E) None.
24. Which issue in the spectrum of hydrogen atoms can not be solved by the Bohr model? (A) The existence of separated series of lines； (B) The relative intensity of each line； (C) The wavelength of each line； (D) All；(E) None.
25. Which statement is correct for a "blackbody"?(A) It is a perfect absorber and emitter of radiation； (B) It can be realized by "'a tiny hole on the wall of a cavity"； (C) A higher temperature will result in a shorter peak wavelength in its radiation spectrum； (D) AIl； (E) None.

申論題 (0)