Navigation » List of Schools » East Los Angeles College » Physics » Physics 07 – General Physics 2 » Fall 2020 » Quiz 1 (A)
Below are the questions for the exam with the choices of answers:
Question #1
A 2.58 × 105 N·m2/C
B 1.35 × 108 N·m2/C
C 1.72 × 105 N·m2/C
D 1.03 × 106 N·m2/C
E 8.13 × 108 N·m2/C
Question #2
A 2.5 × 106 N to the right
B 1.1 × 106 N to the left
C 2.5 × 106 N to the left
D 4.5 × 107 N to the right
E 1.1 × 106 N to the right
Question #3
A have 1/2000 the charge of electrons.
B have 2000 times the charge of electrons.
C are about 2000 times less massive than electrons.
D can have any amount of charge.
E are about 2000 times more massive than electrons.
Question #4
A None of these is correct.
B There are more positive charges near the top and bottom of the sphere compared to the sides next to the two other spheres.
C The positive charges stay uniformly distributed on the surface of the middle sphere.
D There are more positive charges near the sides of the sphere that are next to the other two spheres compared to the other regions of the sphere.
E There are more positive charges near the front and back of the sphere compared to the sides next to the two other spheres.
Question #5
A Its position depends on the size of the charges.
B It must be on the line joining the charges and between the charges.
C It must be on the line joining the charges but not between the charges.
D It cannot be on the line joining the charges.
E None of these is correct.
Question #6
A the charge on the particle
B the inverse-square law
C the mass of the particle
D permittivity
E permeability
Question #7
A 1.02 μN.
B 0.373 mN.
C 1.25 mN.
D 3.11 mN.
E 1.13 mN.
Question #8
A The lines begin on positive charges and end on negative charges.
B The number of lines leaving a positive charge or entering a negative charge is proportional to the charge.
C Electric field lines cross midway between charges that have equal magnitude and sign.
D The density of the lines (the number per unit area perpendicular to the lines) is proportional to the magnitude of the field at that point.
E The direction of each line indicates the direction that a positively charged particle would move if placed at that point in the electric field.
Question #9
A depends only on the curvature of the surface.
B depends on the area and curvature of the conductor and on its charge.
C is parallel to the surface.
D depends only on the area of the conductor.
E depends only on the total charge on the conductor.
Question #10
A zero because the speed is zero.
B in the direction opposite to E.
C None of these is correct.
D perpendicular to E.
E in the same direction as E.
Question #11
A equal to
B 2000 times greater than
C negligible compared to
D None of these answers is correct.
E 2000 times less than
Question #12
A Electric field lines begin on positive charges (or at infinity) and end on negative charges (or at infinity).
B The lines are drawn symmetrically entering or leaving an isolated charge.
C The number of lines leaving a positive charge or entering a negative charge is proportional to the charge.
D All of these statements are true.
E At large distances from a system of charges, the field lines are equally spaced and radial, as if they came from a single point charge equal to the net charge of the system.
Question #13
A At least one sphere is charged.
B They are oppositely charged.
C Both are charged.
D Both have the same charge.
E Neither is charged.
Question #14
A None of these is correct.
B exert no forces on each other.
C also have the same magnitude.
D attract each other.
E repel each other.
Question #15
A charge is quantized but not conserved.
B charge is neither quantized nor conserved.
C None of these answers is correct.
D charge is conserved but not quantized.
E charge is quantized and conserved.
Question #16
A the charges are not necessarily equal in magnitude but have opposite signs.
B the charges are not necessarily equal in magnitude but have the same sign.
C the charges are equal in magnitude but opposite in sign.
D the charges are equal in magnitude and have the same sign.
E there is not enough information to say anything specific about the charges.
Question #17
A an approximately constant acceleration in the direction of the field.
B a constant velocity in a direction opposite to that of the field.
C an approximately constant acceleration in a direction opposite to that of the field.
D a constant velocity in the direction of the field.
E an approximately constant acceleration in a direction at right angles to the field.