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14 QuestionsShow answers
Question 1
SURVEY
30 seconds
Q. In the diagram below, P is a point near a negatively charged sphere. Which direction best represents the direction of the electric field at point P?
answer choices
Right
Left
Up
Down
Question 2
SURVEY
30 seconds
Q. Which quantity and unit are correctly paired?
answer choices
electric field strength and N/C
electricity and Coulombs
electrostatic force and electrons
electric field strength and E
Question 3
SURVEY
30 seconds
Q. A point charge Q is far from all other charges. At a distance of 2 m from Q, the electric field is 20 N/C. What is the force a charge of 5 Coulombs feels?
answer choices
4 N
100 N
40 N
10 N
Question 4
SURVEY
30 seconds
Q. Which of the following statements is false about electric field lines
answer choices
electric field lines cannot cross
electric field lines point away from positive charge
electric field lines are always straight lines
electric field lines show how a proton would move in an electric field
Question 5
SURVEY
30 seconds
Q. At which point is the electric field the strongest
answer choices
A
B
C
D
Question 6
SURVEY
30 seconds
Q. At which point is the electric field the weakest?
answer choices
A because it is the furthest away
A because the field lines are further apart
C because the field lines are further apart
C because it is the furthest away
Question 7
SURVEY
30 seconds
Q. Consider the electric field lines shown in the diagram below. From the diagram, it is apparent that object A is ____ and object B is ____.
answer choices
+,+
+,-
-,+
-,-
Question 8
SURVEY
30 seconds
Q. Consider the electric field lines drawn at the right for a configuration of two charges. Several locations are labeled on the diagram. Which of these shows the ranking in order of weakest to strongest correctly
answer choices
A, E, C
D, E, C
D, B, A
A, D, B
Question 9
SURVEY
30 seconds
Q. An electrostatic force of 2 X 102. newtons is exerted on a charge of 4 coulomb at point P in an electric field. The magnitude of the electric field intensity at P is
answer choices
8 X 102 N/C
5 N/C
2 X 10-2 N/C
50 N/C
Question 10
SURVEY
30 seconds
Q. It is observed that Balloon A is charged negatively. Balloon B exerts a repulsive effect upon balloon A. Would the electric field vector created by balloon B be directed towards B or away from B and why?
answer choices
towards because electric field lines point away from negative charges
towards because electric field lines point away from positive charges
away because electric field lines point away from negative charges
away because electric field lines point toward positive charges
Question 11
SURVEY
30 seconds
Q. QA and QB are two charges creating an electric field. Based on the electric field lines, we can conclude
answer choices
QA and QB are both positive
QA and QB are both negative
QA is positive and QB is negative
QA is negative and QB is positive
Question 12
SURVEY
30 seconds
Q. Which of the following is a true statement about the electric field between the two plates?
answer choices
The field is attractive between the plates and uniform in strength
The field is repulsive between the plates and uniform in strength
The field is attractive between the plates and strongest near the positive
The field is repulsive between the plates and strongest near the positive
Question 13
SURVEY
30 seconds
Q. The electrical force between charges is strongest when the charges are
answer choices
close together
far apart
the electric force is constant everywhere.
there is no pattern
Question 14
SURVEY
30 seconds
Q. What is the magnitude of the electric field intensity at a point where a proton experiences an electrostatic force of magnitude 2.30 x 10-25 newton?