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WorksheetsElectric Field due to charge Dist.
Total questions: 15
Worksheet time: 12mins
Name
Class
Date
1.
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?
a)
Right
b)
Left
c)
Up
d)
Down
2.
Which quantity and unit are correctly paired?
a)
electric field strength and N/C
b)
electricity and Coulombs
c)
electrostatic force and electrons
d)
electric field strength and E
3.
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?
a)
4 N
b)
100 N
c)
40 N
d)
10 N
4.
Which of the following statements is false about electric field lines
a)
electric field lines cannot cross
b)
electric field lines point away from positive charge
c)
electric field lines are always straight lines
d)
electric field lines show how a proton would move in an electric field
5.
At which point is the electric field the strongest
a)
A
b)
B
c)
C
d)
D
6.
At which point is the electric field the weakest?
a)
A because it is the furthest away
b)
A because the field lines are further apart
c)
C because the field lines are further apart
d)
C because it is the furthest away
7.
Consider the electric field lines shown in the diagram below. From the diagram, it is apparent that object A is ____ and object B is ____.
a)
+,+
b)
+,-
c)
-,+
d)
-,-
8.
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
a)
A, E, C
b)
D, E, C
c)
D, B, A
d)
A, D, B
9.
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
a)
8 X 102 N/C
b)
5 N/C
c)
2 X 10-2 N/C
d)
50 N/C
10.
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?
a)
towards because electric field lines point away from negative charges
b)
towards because electric field lines point away from positive charges
c)
away because electric field lines point away from negative charges
d)
away because electric field lines point toward positive charges
11.
QA and QB are two charges creating an electric field. Based on the electric field lines, we can conclude
a)
QA and QB are both positive
b)
QA and QB are both negative
c)
QA is positive and QB is negative
d)
QA is negative and QB is positive
12.
Which of the following is a true statement about the electric field between the two plates?
a)
The field is attractive between the plates and uniform in strength
b)
The field is repulsive between the plates and uniform in strength
c)
The field is attractive between the plates and strongest near the positive
d)
The field is repulsive between the plates and strongest near the positive
13.
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?
a)
1.44 x 10-6 N/C
b)
3.68 x 106 N/C
c)
1.44 x 1044 N/C
d)
3.68 x 10-44 N/C
14.
What option best describes this field?
a)
A weak electric field generated by two positive charges. They would attract each other.
b)
A strong electric field generated by two opposite charges. They would repel each other.
c)
A strong electric field generated by two opposite charges. They would attract each other.
d)
A weak electric field generated by two positive charges. They would repel each other.
15.
How do electric field lines represent the magnitude of an electric field?
a)
Length of the line
b)
With arrows
c)
Density of lines
d)
Width of lines
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