Quiz about Electric Fields

Question 1

Which of the following statements is false about electric field lines

Accepted Answer

electric field lines are always straight lines

Answer

electric field lines cannot cross

Answer

electric field lines point away from positive charge

Answer

electric field lines show how a proton would move in an electric field

Question 2

At which point is the electric field the strongest

Accepted Answer

B

Answer

A

Answer

C

Answer

D

Question 3

At which point is the electric field the weakest?

Accepted Answer

C because the field lines are further apart

Answer

A because it is the furthest away

Answer

A because the field lines are further apart

Answer

C  because it is the furthest away

Question 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 ____.

Accepted Answer

-,+

Answer

+,+

Answer

+,-

Answer

-,-

Question 5

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

Accepted Answer

D, E, C

Answer

A, E, C

Answer

D, B, A

Answer

A, D, B

Question 6

Q_Aand Q_Bare two charges creating an electric field. Based on the electric field lines, we can conclude

Accepted Answer

Q_Ais positive and Q_Bis negative

Answer

Q_Aand Q_Bare both positive

Answer

Q_Aand Q_Bare both negative

Answer

Q_Ais negative and Q_Bis positive

Question 7

Which of the following is a true statement about the electric field between the two plates?

Accepted Answer

The field is attractive between the plates and uniform in strength

Answer

The field is repulsive between the plates and uniform in strength

Answer

The field is attractive between the plates and strongest near the positive

Answer

The field is repulsive between the plates and strongest near the positive

Question 8

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

Accepted Answer

both charges are the same

Answer

the charges are opposite

Answer

they are neutral; no charge

Question 9

Which diagram correctly shows the electric field around a negative charge?

Accepted Answer

B

Answer

A

Answer

they are both positive

Question 10

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

Accepted Answer

B

Answer

A

Answer

Both

Answer

Neither

Question 11

The electric field surrounding a positively charged object is

Accepted Answer

Away from the charge

Answer

Toward the charge

Question 12

A region of influence surrounding an object is best defined as:

Accepted Answer

A field

Answer

An electric field

Answer

A force

Answer

A gravitational field

Question 13

When an object gains electrons it becomes __________

Accepted Answer

Negatively charged

Answer

Neutral

Answer

Positively charged

Question 14

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

Accepted Answer

negatively charged because it has excess electrons

Answer

positively charged because it has excess electrons

Answer

positively charged because it has a deficiency of electrons

Answer

negatively charged because it has a deficiency of electrons

Question 15

Coulomb's law also says if distance increases, then force

Accepted Answer

decreases

Answer

disapears

Answer

destroyed in a heartbeat

Answer

doubles

Question 16

which is the field for opposite charges

Accepted Answer

Option D is correct

Answer

A.

Answer

B.

Answer

C.

Electric Fields

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