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Electrical Field Lines

Total questions: 17

Worksheet time: 14mins

Name
Class
Date
1.
At which point is the electric field the strongest
a)
A
b)
B
c)
C
d)
D
2.
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
3.
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)
-,-
4.
Qand Qare two charges creating an electric field. Based on the electric field lines, we can conclude
a)
Qand Qare both positive
b)
Qand Qare both negative
c)
Qis positive and Qis negative
d)
Qis negative and Qis positive
5.

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

6.

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

a)

A

b)

B

c)

Both

d)

Neither

7.

When an object gains electrons it becomes __________

a)

Neutral

b)

Positively charged

c)

Negatively charged

8.

An atom of oxygen has 8 protons and 10 electrons, this means the atom is ____________

a)

positively charged because it has excess electrons

b)

negatively charged because it has excess electrons

c)

positively charged because it has a deficiency of electrons

d)

negatively charged because it has a deficiency of electrons

9.
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
10.
What does it mean when the electric field lines are close together?
a)
the field is positive
b)
the field is negative
c)
The field is strong
d)
the field is weak
11.

If two charges attract to each other, then which of the following is true?

a)

Both charges must be positive.

b)

Both charges must be negative

c)

Both charges must be different.

d)

Both charges must be equal in value.

12.
The subatomic particle with a neutral charge is:
a)
protons
b)
electrons
c)
neutrons
d)
cloud
13.

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.

14.

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.

15.

Electrical field lines of a negatively charged object flow _______________.

a)

Inwards

b)

Outwards

c)

Clockwise

d)

Counter-Clockwise

16.

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.

17.

if electrons transfer from a wool square to a pvc wand, the wool becomes ______________ and the wand becomes_____________.

a)

Positive, Positive

b)

Positive, Negative

c)

Negative, Positive

d)

Negative, Negative