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Static Electricity

Total questions: 36

Worksheet time: 32mins

Name
Class
Date
1.
Ms Jo Jo rubbed two balloons with a piece of wool. What will happen when the balloons are brought near each other?
a)
The balloons will repel each other.
b)
The balloons will attract each other.
c)
The balloons will become positively (+) charged.
d)
The balloons will pop.
2.

Which of these is NOT a way to create a static charge on an object?

a)

Friction

b)

Induction

c)

Electroaction

d)

Contact

3.
What method of static charging is shown in this picture
a)
Polarization
b)
Friction
c)
Induction
d)
Conduction
4.
If you rub a glass rod with a piece of silk, the rod becomes positively charged. This means that
a)
friction destroyed electrons in the rod.
b)
the silk has become negatively charged.
c)
protons have moved to the rod.
d)
glass attracts more protons.
5.
A region around a charged particle that can exert a force on another charged particle is called an
a)
electric pulse.
b)
electric charge.
c)
electric force.
d)
electric field.
6.

Charging by ____ occurs when electrons are transferred from one object to another by direct contact, without rubbing.

a)

reduction

b)

induction

c)

contact

d)

friction

7.
The "Q" in Coulomb's Law stands for
a)
the mass of charges objects.
b)
the distance of charged objects.
c)
the force of charged objects.
d)
the charge of charged objects.
8.
Force between two bodies having charges 5.0 x 102 μC and 1.0 x 102 μC separated by distance of 0.50 m in air is
a)
1800 N
b)
1.0 x 103 N
c)
2200 N
d)
3.0 x 102 N
9.
A positive charge of 4.0 µC exerts an attractive force of 8.0 N on an unknown charge 20.0 cm away. The unknown charge is
a)
+ 8.9 µC 
b)
- 8.9 µC
c)
+ 4  µC
d)
- 44  µC 
10.

The ball on the string is being repelled (pushed away) by the metal bar.

What could potentially be the charge on the ball?

a)

It MUST be positive

b)

It MUST be negative

c)

It MUST be neutral

d)

It could be positive or neutral

e)

It could be negative or neutral

11.

The picture shows a comb that was used on a cold, dry day. Which two of the following can best help explain why

some of the paper bits seem to be picked up while other are not.

a)

Protons moved more easily in the paper that was attracted to the comb.

b)

Electric force gets weaker the farther away objects are from each other.

c)

Some paper had iron in it and some didn’t.

d)

Magnetic force gets weaker the farther away objects are from each other.

e)

Each piece of paper has a different mass, and the bigger the mass the smaller the effect the electric force will have on it.

12.
What is the process of connecting an object to Earth with a conductor called?
a)
charging
b)
draining
c)
grounding
d)
induction
13.

A(n) ______________________________ is an instrument used to detect the presence of an electric charge.

a)

scale

b)

van de graaff generator

c)

electroscope

14.

What is NOT a good conductor

a)

Water

b)

Metal

c)

Rubber

15.

If an electroscope, charged up with excess negative charge, is touched and grounded, then it will end up with ___ charge.

a)

No

b)

A Negative

c)

A Positive

d)

None of the above

16.

A negatively charged balloon is brought near a metal can that rests on a wood table. The side of the can furthest from the balloon is momentarily touched by a human, and then released, while the balloon remains in place. The balloon is then moved away. At the very end of this process, the can will be...

a)

Positively Charged

b)

Negatively Charged

c)

Neutral

d)

Polarized

17.

The charge of one electron is -1.6 X 10 -19 Coulomb. If a neutral object loses 1.5x106 electrons, then what will be its charge?

a)

+1.4 x 10 -13 C

b)

+2.4 x 10 -13 C

c)

-2.4 x 10 -12 C

d)

+2.4 x 10 -14 C

18.

[CHALLENGE] Object A has a x-y coordinate position of (+5.0, 0.0). Object B has a x-y coordinate location of (0.0, +4.0). If object A has a charge of -5.8 µC and object B has a charge of +8.9 µC, then what is the resultant electric field strength at the origin(magnitude) .

a)

5.4 x103 N/C

b)

4.4 x10-3 N/C

c)

5.4 x10-3 N/C

d)

15.4 x103 N/C

19.

Object A has a x-y coordinate position of (+5.0, 0.0). Object B has a x-y coordinate location of (0.0, +4.0). If object A has a charge of -5.8 µC and object B has a charge of +8.9 µC . what would be the magnitude of the net electric force upon a +1.3 µC charge if placed at the origin.

a)

0.0060 N

b)

0.0080 N

c)

0.0090 N

d)

0.0070 N

20.

If the leaves of an electroscope spread apart, it indicates that _____.

a)

the leaves of the electroscope are neutral

b)

the leaves of the electroscope have received a charge, or the electroscope is polarized

c)

no charge is moving through the electroscope

d)

there is static electricity in the electroscope

21.
When a rod is brought near a neutral electroscope, the leaves diverge.  Which statement best describes the charge on the rod?
a)
It must be positive.
b)
It must be negative.
c)
It may be positive or negative.
d)
It may be neutral.
22.

A negatively charged rod is brought near a neutral electroscope, causing the leaves to diverge. This is an example of....

a)

Conduction

b)

Polarization

c)

Insulation

d)

Friction

23.
A neutral electroscope is polarized by bringing a negatively charged rod near the top
a)
A
b)
B
c)
C
d)
D
24.

The TOTAL NUMBER of electrons present in 1 Coulomb of charged electrons :

a)

 6.25⋅10−186.25\cdot10^{-18}  

b)

 6.25⋅10186.25\cdot10^{18}  

c)

 62.5⋅101862.5\cdot10^{18}  

d)

 625⋅1018625\cdot10^{18}  

e)

 −6.25⋅1018 -6.25\cdot10^{18\ }  

25.

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

a)

True

b)

False

26.
At which point is the electric field the strongest
a)
A
b)
B
c)
C
d)
D
27.
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
28.
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)
-,-
29.
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
a)
A, E, C
b)
D, E, C
c)
D, B, A
d)
A, D, B
30.
An electrostatic force of 2 X 102. newtons is exerted on a charge of 4 coulomb at point P in an electric field. The magnitude of the electric field intensity at P is
a)
8 X 102 N/C
b)
5 N/C
c)
2 X 10-2 N/C
d)
50 N/C
31.
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
32.
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
33.

Al cargar un electroscopio, si el INDUCTOR es NEGATIVO el electroscopio se carga NEGATIVO.

a)

TRUE

b)

FALSE

c)

DEPENDE DE LAS CONDICIONES ATMOSFÉRICAS

d)

I didn't realize that true and false were words in Spanish

34.

Looking at an object's place in the triboelectric series is useful because it tells you...

a)

How conductive a material is

b)

How much affinity that object has for electrons

c)

How each it is for static electricity to build on that object

d)

How good an object is at judging an electric tribunal

35.

Which of the following is TRUE?

a)

A conductor will never have a charge on it

b)

A conductor will always have an electric field inside of it

c)

A conductor's electric field lines will always point perpendicular to its surface

d)

A conductor will never stop conducting until the fat lady sings

36.

Which of the following is NOT an example of a faraday cage?

a)

An elevator

b)

An RFID-blocking wallet

c)

The suits that are worn by Tesla-warriors while they fight their electricity battles

d)

An airplane

e)

None of the above, they all are Faraday Cages

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