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