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Electric field lines

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

Which statement accurately describes the charged particles in Diagram A?

a)

The particles have opposite charges:

Blue: Negative Red: Positive

The particles repel one another.

b)

The particles have like charges:

Blue: Negative Red: Negative

The particles attract one another.

c)

The particles have opposite charges:

Blue: Positive Red: Negative

The particles attract one another.

d)

The particles have like charges:

Blue: Positive Red: Positive

The particles attract one another.

2.

Electrical field lines of a negatively charged object flow _______________.

a)

Inwards

b)

Outwards

c)

Clockwise

d)

Counter-Clockwise

3.

If a charged particles has very dense field lines, that means the particle has a ___________ charge.

a)

Strong

b)

Weak

c)

Neutral

d)

None of the above.

4.
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)
-,-
5.
The electrical force between charges is strongest when the charges are
a)
close together
b)
far apart
c)
 the electric force is constant everywhere.
d)
there is no pattern
6.
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
7.

The electric field lines for a positive charge is always directed away from the charge. True or False?

a)

True

b)

False

8.

Which graph best represents the relationship between the strength of an electric field and distance from a point charge?

a)
b)
c)
d)
9.

Based on the arrangement of the electric field lines in the diagram, what are the charges?

a)

both charges are the same

b)

the charges are opposite

c)

they are neutral; no charge

10.

Which statement best describes the electric fields in the image?

a)

The charges are neutral.

b)

Both charges are negative, so the field lines are alike.

c)

The field lines move toward a positive charge and away from a negative charge.

d)

The field lines move away from a positive charge and toward a negative charge.

11.

Where can an electric field be found?

a)

below a force field

b)

in a gravitational field

c)

in the space surrounding a charged object

d)

outside of a magnetic field

12.

Which diagram correctly shows the field lines between two like charges?

a)

A

b)

B

c)

Both

d)

Neither

13.
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
14.
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
15.
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
16.

The net force due to different charges around a single charge can be determined using superposition principle. True or False?

a)

True

b)

False

17.

Electric field is directly proportional to the charge and inversely proportional to the magnitude of electric force. True or False?

a)

True

b)

False

18.

What is the symbol for electric field strength?

a)

B

b)

E

c)

F

d)

T

19.

Where would you find a uniform electric field?

a)

around a single charge

b)

between two charged metal plates

c)

inside a coil that carries a current

d)

around a magnet

20.

Which of the following features of an electrostatic line of force is NOT correct?

a)

It is an imaginary line which a positive charge would describe if it is free to move

b)

The tangent drawn at any point on a curved line of force shows the direction of the electric field intensity at that point

c)

It is sometimes curved

d)

It can cross another line of force in a region of intense electric field