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Chapter 15: Electrostatic

Total questions: 67

Worksheet time: 1hrs 7mins

Name
Class
Date
1.

Is work done on the positive charge to move it from point A to point B? (assume line are equipotential lines)

a)

Yes

b)

No

2.

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

a)
b)
c)
d)
3.

What does the Law of Conservation of Charge state?

a)

like charges repel and opposites attract

b)

positive charge fields point away from a charge; negative points toward

c)

charges cannot be created nor destroyed, only transferred

4.
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
5.
If each of the charges doubles, what happens to the electric force?
a)
Quadruples
b)
Doubles
c)
Stays the same
d)
Reduced by half
6.
If the distance between 2 charges doubles, what happens to the electrostatic force?
a)
Reduced by half
b)
Reduced by 1/4
c)
Stays the same
d)
Quadruples
7.
When distance increases, electrostatic force ____________; we call this relationship ____________ proportional
a)
decreases;directly
b)
decreases;inversely
c)
increases;inversely
d)
increases;directly
8.
Electrostatic force F is directly proportional to:
a)
r^2 (distance squared)
b)
q1
c)
q2
d)
both q1 and q2
9.

Electric potential ____________ as distance increases.

a)

Increases

b)

Decreases

c)

Remains Constant

d)

Is 0

10.

The SI unit for electric potential is the ___________.

a)

Volen

b)

Vespa

c)

Volt

d)

Valspar

11.

The difference in electrical potential energy between two places is called …………...

a)

resistance

b)

friction

c)

induction

d)

voltage

12.

If a unit positive charge is taken from one point to another over an equipotential surface, then

a)

Work is done on the charge

b)

Work is done by the charge

c)

Work done is constant

d)

No work is done

13.

two-dimensional representation of an equipotential surface

a)

equipotential surface

b)

electric potential

c)

electric potential difference

d)

equipotential line

14.
surface (usually in three dimensions) on which all points are at the same potential
a)
equipotential surface
b)
electric potential
c)
electric potential difference
d)
equipotential line
15.

Which graph best represents the relationship between the magnitude of the electrostatic force and the distance between two oppositely charged particles?

a)
b)
c)
d)
16.

If the charge on each of two small charged metal spheres is doubled and the distance between the spheres remains fixed, the magnitude of the electric force between the spheres will be

a)

two times as great

b)

four times as great

c)

one-half as great

d)

the same

17.

The magnitude of the electrostatic force between two point charges is F. If the distance between the charges is doubled, the electrostatic force between the charges will become

a)

F4\frac{F}{4}

b)

4F

c)

F2\frac{F}{2}

d)

2F

18.
When distance increases, electrostatic force ____________; we call this relationship ____________ proportional
a)
decreases;directly
b)
decreases;inversely
c)
increases;inversely
d)
increases;directly
19.
The Electric Force is strongest when charges are...
a)
close together
b)
far apart
c)
the electric force is constant everywhere
20.

An electric field has

a)

direction.

b)

magnitude.

c)

Both magnitude and direction

d)

None

21.
Electric potential is defined as potential. 
a)
electrical potential energy of a charge multiplied by the quantity of the charge.
b)
 electrical potential energy of a charge divided by the quantity of the charge. 
c)
electrical potential energy. 
d)
gravitational 
22.
A volt is a unit of 
a)
charge. .
b)
electric potential. 
c)
energy. 
d)
work.
23.

Electric lines of force about negative point charge are

a)

Circular, anticlockwise

b)

Circular, clockwise

c)

Radial, outward

d)

Radial, inward

24.

The unit of electric field is not equivalent to

a)

N/C

b)

J/C

c)

V/m

d)

J/Coulomb.meter

25.

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

26.
At which point is the electric field the strongest
a)
A
b)
B
c)
C
d)
D
27.
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)
-,-
28.

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

a)

True

b)

False

29.
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
30.

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

31.

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.

32.
As a proton moves in the direction the electric field lines...
a)
it is moving from low potential to high potential and gaining electric potential energy.
b)
it is moving from low potential to high potential and losing electric potential energy.
c)
it is moving from high potential to low potential and gaining electric potential energy.
d)
it is moving from high potential to low potential and losing electric potential energy.
33.

Electric potential ____________ as distance increases.

a)

Increases

b)

Decreases

c)

Remains Constant

d)

Is 0

34.

The magnitude of electric potential is ______ at an infinite distance.

a)

0

b)

negative infinity

c)

positive infinity

d)

200

35.

Electric Potential (voltage) is greatest at point...

a)

A

b)

B

36.

Electric potential energy is greatest at point...

a)

A

b)

B

37.

Moving an electron within an electric field would change the ____ the electron.

a)

mass of

b)

amount of charge on

c)

potential energy of

38.
A region of space contains a uniform electric field, directed toward the right, as shown in the figure. Which statement about this situation is correct?
a)
The potential at point A is the highest, the potential at point B is the second highest, and the potential at point C is the lowest.
b)
The potential at points A and B are equal, and the potential at point C is lower than the potential at point A.
c)
The potential at all three locations is the same.
d)
The potentials at points A and B are equal, and the potential at point C is higher than the potential at point A.
39.

work done in an equipotential surface is

a)

positive

b)

negative

c)

zero

40.
potential energy per unit charge
a)
electric potential energy
b)
electron-volt
c)
electric potential
d)
electric potential difference
41.
the change in potential energy of a charge q moved between two points, divided by the charge.
a)
electric potential energy
b)
electron-volt
c)
electric potential
d)
electric potential difference
42.
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
43.
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
44.
If I triple the value of charge of a test charge the electric field will
a)
Increase by 3 
b)
Increase by 9
c)
Not change
d)
Decrease by 9
45.

The diagram above shows a point, P, located midway between two oppositely charged parallel plates.

If an electron is introduced at point P, the electron will

a)

accelerate toward the negatively charged plate

b)

travel at constant speed toward the negatively charged plate

c)

travel at constant speed toward the positively charged plate

d)

accelerate toward the positively charged plate

46.

Coulomb’s law refers to electric charges that are

a)

on any charged objects

b)

charged hollow spheres

c)

charged solid spheres

d)

point charges

47.

The S.I. unit for electric field is__________?

a)

nC

b)

μC

c)

n/C

d)

N/m

e)

none of the above

48.

Which charges particle has the larger electric field applied to it?

a)

A

b)

B

c)

they are the same

d)

can not be determined

49.
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
50.

Define electric field strength

a)

rate of flow in charge

b)

force per unit positive charge on a stationary charge

c)

potential difference per unit separation between plates

d)

product of force and charge

51.

Which of the following statements about coulomb force is TRUE?

a)

Attractive force if both charges have the same sign

b)

Force is directly proportional to the product of the charges

c)

Force is directly proportional to the masses of the charges

d)

Force is directly proportional to the square to the separation distance of the two charges

52.

Every charged particle produced

a)

A negative charge

b)

A magnetic field

c)

A positive charge

d)

An electric field

53.

What is the direction of the electric field at the midpoint location between charges  +Q1 and −Q2+Q_1\ and\ -Q_2   

a)

Directed towards   +Q1+Q_1  

b)

Directed towards  −Q2-Q_2  

c)

Not possible to determine its direction since the values of the charges not given

d)

Undetermined since the resultant electric field is zero

54.

Based on the diagram . What path will the charge take?

a)

Stright

b)

Parabolic

c)

Downwards

d)

Upwards

55.

What path does the charge with constant velocity in a dynamic field take?

a)

Parabolic

b)

Stright

c)

Downwards

d)

Upwards

56.

Based on the diagram . What path will the charge take?

a)

Parabolic

b)

Upwards

c)

Downwards

d)

To the right

57.

Based on the figure. The charge will move in a parabolic path. What is the acceleration in the x component?

a)

a=qEma=\frac{qE}{m}

b)

a=Fma=\frac{F}{m}

c)

a=0a=0

d)

a=(v−u)ta=\frac{\left(v-u\right)}{t}

58.

Based on the figure. The charge will move in a parabolic path. What is the acceleration in the y component?

a)

a=qEma=\frac{qE}{m}

b)

a=Fma=\frac{F}{m}

c)

a=0a=0

d)

a=(v−u)ta=\frac{\left(v-u\right)}{t}

59.

What is the acceleration of a stationary charge with negligible mass in a uniform electric field?

a)

a = 0a\ =\ 0

b)

a=Fma=\frac{F}{m}

c)

a=qEma=\frac{qE}{m}

d)

a=(v−u)ta=\frac{\left(v-u\right)}{t}

60.

Why does a charge in dynamic equilibrium move in a straight line?

a)

The charge moves with an increasing velocity

b)

The charge moves with a constant velocity

c)

The charge moves with a decreasing velocity

d)

The charge has no velocity

61.

The SI unit if electric charge is

a)

Volt

b)

Henry

c)

Coulomb

d)

Weber

62.

If we move away from a charge, the magnitude to electric intensity

a)

Remains constant

b)

Increases

c)

Decreases

d)

Vanish

63.

Of the following quantities, the one that is vector in character is

a)

Electric Charge

b)

Electric Field Intensity

c)

Electric Energy

d)

Electric Potential Difference

64.

Work done in bringing a unit positive charge from infinity to that point in an electric field is called

a)

Potential Difference

b)

Resistance

c)

Capacitance

d)

Electric potential

65.
If the distance between two electric charges is reduced by half, what happens to the electrostatic force?
a)
Quadruples
b)
Doubles
c)
Triples
d)
Reduces by half
66.
What variable do Coulombs represent?
a)
Electrostatic Charge
b)
Force
c)
Distance
d)
Mass
67.

 FE=(kQ1Q2)r2 F_E=\frac{(kQ_1Q_2)}{r^2}\   

What equation is this:

a)

Newton gravitational force law

b)

Ohms law

c)

Newtons law

d)

Coulombs law

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