wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Electric charges and Fields Recapitulation

Total questions: 49

Worksheet time: 19mins

Name
Class
Date
1.

On being "electrified" the material:

a)

oozes electricity and we'll be mortified if we touch it!

b)

it acquires electric charge

c)
d)

I don't care if the material is a pizza, I'm gonna still eat it

2.

A glass rod acquires charge by rubbing it with silk cloth. The charge on glass rod is due to :

a)

Conduction

b)

Induction

c)

Radiation

d)

Friction

3.

For a point charge, the graph between electrostatic force versus distance is given by :

a)
b)
c)
d)
4.

What is the value of minimum force acting between two charges placed at 1 m apart from each other

a)

K eK\ e

b)

K e2K\ e^2

c)

Ke4\frac{Ke}{4}

d)

Ke29\frac{Ke^2}{9}

5.
At which point is the electric field the strongest
a)
A
b)
B
c)
C
d)
D
6.
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
7.
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
8.
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
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 subatomic particles would you find in the nucleus of an atom?
a)
Protons only
b)
Protons and Neutrons
c)
Neutrons and Electrons
d)
Protons and Electrons 
11.

Electric charges that are unlike _______ each other.

a)

Attract

b)

Repel

12.
Electric charges that are alike _______ each other.
a)
Attract
b)
Repel
13.

According to Coulomb's Law, The greater the separation distance between two charges the greater the magnitude of the electric force. True or False?

a)

True

b)

False

14.
Electrostatic force F is directly proportional to:
a)
r^2 (distance squared)
b)
q1
c)
q2
d)
both q1 and q2
15.
What are the two types of charges that objects may possess?
a)
+ and +
b)
+ and -
c)
+ and neutral 
d)
- and neutral 
16.
If an object has a net charge of +2e this means it has
a)
lost 2 electrons
b)
gained 2 electrons
c)
lost 2 protons
d)
gained 2 protons
17.
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
18.

Which has a charge with the greatest magnitude?

a)

An object with a charge of 0.

b)

An object with a charge of -2

c)

An object with a charge of +2

d)

An object with a charge of -3

19.

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

a)

True

b)

False

20.

The mass of a single electron is equal to 9.109x10-31C. True or False?

a)

True

b)

False

21.

The separation distance between two charges is equal to r=√(k.(q1q2/Fe)). True of False

a)

True

b)

False

22.

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

a)

True

b)

False

23.
A region of influence surrounding an object is best defined as:
a)
An electric field
b)
A field
c)
A force
d)
A gravitational field
24.

A pith ball has an electric charge +2q, and it feels a force F when placed a distance d from a second pith ball with an electric charge -q. When the second pith ball is charged to -3q, the force on the pith ball is ---.

a)

6F

b)

2F

c)

3F

d)

F

25.

A pith ball has an electric charge +q, and it feels a force F when placed a distance d from a second pith ball with an electric charge +q. When the second pith ball is moved to a distance 2d, the force on the pith ball is ---.

a)

2F

b)

1/2 F

c)

F

d)

1/4 F

26.
What is the electric force between an electron and a proton that are separated by a distance of 1.0 x 10 ^-10 m?  is the force attractive or repulsive? 
a)
attractive; 3.8 x 10^ -8N
b)
repulsive; 3.5 x 10 ^-10N
c)
attractive ; 2.3 x 10^-8N
d)
repulsive; 2.0 x 10^-10N
27.

Identical charges A, B, and C are located between two oppositely charged parallel plates, as shown in the diagram below. The magnitude of the force exerted on the charges by the electric field between the plates is

a)

least on A and greatest on C

b)

the same on A and C, but less on B

c)

the same for A, B, and C

d)

greatest on A and least on C

28.
What is the name of this device that is used to detect charges?
a)
beaker
b)
electroscope
c)
van de graff generator
d)
chargometer
29.

The dimensional formula of electric charge is

a)

M0L0T1A1M^0L^0T^1A^1

b)

M0L0T−1A1M^0L^0T^{-1}A^1

c)

M0L0T1A−1M^0L^0T^1A^{-1}

d)

M0L0T−1A−1M^0L^0T^{-1}A^{-1}

30.

Four charges are arranged at the corners of a square ABCD, as shown in the adjoining figure. The force on a POSITIVE charge kept at the centre O is

a)

Zero

b)

along the diagonal AC

c)

along the diagonal BD

d)

perpendicular to side AB

31.
Which subatomic particles contribute the most to the mass of an atom?
a)
Protons, Neutrons, Electrons
b)
Protons only
c)
Protons and Electrons
d)
Protons and Neutrons
32.

Two charges 3×10−5C3\times10^{-5}C  and 5×104C5\times10^4C  are placed at a distance 10 cm from each other. Find the value of electrostatic force acting between them.

a)

 13.5×1011N13.5\times10^{11}N  

b)

 40×1011N40\times10^{11}N  

c)

 180×109N180\times10^9N  

d)

 13.5×1010N13.5\times10^{10}N  

33.

Charge given to a spherical conductor is uniformly distributed in its entire volume.

a)

True

b)

False

34.

The electric force between two charges changes, if we bring a third charge closer to them.

a)

True

b)

False

35.

Two unequal charges exert _____________ magnitude of force on each other.

a)

Unequal

b)

Equal

c)

Zero

d)

Infinite

36.

A silk cloth rubbed with a glass rod has a charge  q=−1.6×10−19Cq=-1.6\times10^{-19}C  ,  then the charge on the glass rod will be ______________.

a)

 −1.6×10−19C-1.6\times10^{-19}C  

b)

 +1.6×10−19C+1.6\times10^{-19}C  

c)

 −1.6×1019C-1.6\times10^{19}C  

d)

 +1.6×1019C+1.6\times10^{19}C  

37.

Charge on a body is integral multiple of ±e\pm e . It is given by the law of:

a)

Conservation of charge

b)

Conservation of mass

c)

Quantization of charge

d)

Conservation of energy

38.

Two point charges, one Coulomb each are placed in water having RELATIVE PERMITTIVITY of 81 and separated by a distance of 1 meter from each other. What is the magnitude of force acting between them?

a)

 19×109N\frac{1}{9}\times10^9N 

b)

 9×10−19N9\times10^{-19}N 

c)

 181×109N\frac{1}{81}\times10^9N 

d)

1 N1\ N

39.

Which sentence best describes electrical conductors?

a)

electrical conductors have low mass density

b)

electrical conductors have high tensile strength

c)

electrical conductors have electric charges that move freely

d)

electrical conductors have poor heat conductors

40.

In the diagram shown above, the circles represent small balls that have electric charges. Ball 1 has a negative charge, and ball 2 is repelled by ball 1. Next, you see that ball 2 repels ball 3 and that ball 3 attracts ball 4. What is the electric charge on ball 4?

a)

ball 4 may have either a positive or negative charge

b)

ball 4 has a negative charge

c)

ball 4 has a positive charge

d)

it is not possible to determine the charge on ball 4

41.

Two point charges, initially 2 cm apart, are moved to a distance of 10 cm apart. By what factor does the resulting electric force between them change?

a)

25

b)

5

c)

1/5

d)

1/25

42.

Resultant force on a charge is the ______ sum of the individual forces on that charge.

a)

scalar

b)

vector

c)

individual

d)

negative

43.

Two charges of equal magnitude kept at a distance r, exert a force F on each other. If the charges are halved and the distance between them doubled, then what is the force acting on each charge?

a)

4 F

b)

F/8

c)

F/4

d)

F/16

44.

A charge 'q' is to be divided between two objects A and B. The charges on A and B such that the force between A and B can be maximum is ____.

a)

q/8

b)

q/4

c)

q/2

d)

q/3

45.

What will be the value of a charge q, such that when it is placed at the centre of two equal and like charges Q, the three charges are in equilibrium.

a)

+Q/4

b)

Q

c)

-Q/4

d)

Q/2

46.

How is Coulomb's law similar to Newton's law of gravitation? How is it different?

a)

Both describe fields, obey an inverse-square relationship with distance, and have a proportionality constant; The law of gravitation can only be attractive while electrical forces may either attract or repel.

b)

Both describe motion; Coulomb's law is French while Newton's law is English

c)

Both use really big or small numbers; Coulomb's law only applies to the very large

47.

By how much is the electrical force between a pair of ions reduced when their separation distance is doubled (2x)? Tripled (3x)?

a)

2 times less ; 3 times less

b)

4 times less ; 9 times less

c)

8 times less ; 27 times less

48.

What is meant by the expression action at a distance?

a)

the idea that things not in contact can still exert forces on one another

b)

the idea that you can do your job but stay at home

c)

the idea that every action has an equal and opposite reaction

49.

What is the dimension of absolute permittivity?

a)

[M−1 L−2 T3 A4]\left[M^{-1}\ L^{-2}\ T^3\ A^4\right]

b)

[M−1 L−3 T 4 A2]\left[M^{-1}\ L^{-3}\ T^{\ 4}\ A^2\right]

c)

[M−2 L3 T−4 A1]\left[M^{-2}\ L^3\ T^{-4}\ A^1\right]

d)

[M 4 L3 T−2 A1]\left[M^{\ 4}\ L^3\ T^{-2}\ A^1\right]

Similar Resources on Wayground

11. ELECTRICITY AND MAGNETISM(CLASS 10)

51 questions

11. ELECTRICITY AND MAGNETISM(CLASS 10)

quiz

Worksheet

•

9th - 12th Grade

Physics paper 1 F Trilogy AQA #ForestHorsham

46 questions

Physics paper 1 F Trilogy AQA #ForestHorsham

quiz

Worksheet

•

12th Grade

Metric, Conversions, SciNot, SigFigs

50 questions

Metric, Conversions, SciNot, SigFigs

quiz

Worksheet

•

8th - 12th Grade

Kinematics

50 questions

Kinematics

quiz

Worksheet

•

11th - 12th Grade

Physical Science Midterm Review

44 questions

Physical Science Midterm Review

quiz

Worksheet

•

8th - 12th Grade

Momentum and Forces DP014

51 questions

Momentum and Forces DP014

quiz

Worksheet

•

12th Grade

Physics Midterm Review

50 questions

Physics Midterm Review

quiz

Worksheet

•

11th - 12th Grade

Lab Equipment

49 questions

Lab Equipment

quiz

Worksheet

•

9th - 12th Grade