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STATIC ELECTRICITY 2

Total questions: 65

Worksheet time: 2hrs 50mins

Name
Class
Date
1.

what name is given to this type of charging in static electricity.

a)

All of these

b)

Induction

c)

Friction

d)

Conduction

2.
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.
3.
If you bring a charged object near an electrically neutral surface without allowing the object to touch the surface, the charges in the surface are rearranged by
a)
friction.
b)
convection.
c)
induction.
d)
conduction.
4.

what can be said about the rod and fur?

a)

They are neutral

b)

They have opposite charges

c)

They can be charged by induction

d)

all of the above

5.

what will be the charge on the fur after rubbing them together?

a)

Neutral

b)

Positive

c)

Zero

d)

Negative

6.
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.
7.
Charging by ____ occurs when electrons are transferred from one object to another by direct contact.
a)
reduction
b)
induction
c)
conduction
d)
friction
8.

What will be the charge on the neutral metal sphere in contact with a positively charge aluminum plate after it is removed?

a)

Negative.

b)

Positive.

c)

Neutral

d)

No charge

9.

Lightning usually strikes the highest point in a charged area because......

a)

that point provides the shortest path for the charges to reach the ground.

b)

that point  provides the longest path for the charges to reach the ground.

c)

It is a neutral point.

d)

none of the reasons

10.

When we touch a metal ball of positive charge...

a)

electrons flow from the earth to the metal ball to neutralize the metal ball

b)

electrons flow to the earth from the metal ball to neutralize the metal ball

c)

electrons flow from the earth to the metal ball to make it negatively charge

d)

- electrons flow to the earth from the metal ball to neutralize the metal ball to make it positively charge

11.
When you pull a cotton sweater off your skin, electrons are transferred from the ___________________ (cotton, skin) to the __________________ (cotton, skin). As a result, your body acquires a ___________ (+ , -) charge and the cotton sweater acquires a ___________ (+ , -) charge.
a)
skin, cotton, +, -
b)
cotton, skin, +, -
c)
skin , cotton, -, +
d)
cotton, skin, -, +
12.
Which part of Coulomb's Law is always squared?
a)
distance
b)
charge
c)
Coulomb's constant
d)
force
13.

An air ionizer operates by....

a)

decreasing the moisture content of the air, making the atmosphere less conductive

b)

increasing the moisture content of the air, making the atmosphere less conductive

c)

increasing the moisture content of the air, making the atmosphere more conductive.

d)

All of the above

14.
Electrical charge built up on the surface of an object is called _________________.
a)
static electricity
b)
current electricity
c)
lightning
d)
electrons
15.

the positively charged particle in an atom, never leaves the nucleus, determines the element

a)

proton

b)

neutron

c)

electron

16.

the negatively charged particle in an atom, moves freely, can be released, shared, or “stolen” from an atom

a)

proton

b)

neutron

c)

electron

17.

The difference between attraction and repulsion is that to attract is to pull something closer and repel is to push something away.

a)

True

b)

False

18.
If a substance has a higher number of electrons than protons on its surface, what type of charge does it have?
a)
A positive charge.
b)
A negative charge.
c)
A neutral charge
d)
No charge at all
19.

An object that is neutral contains the same number of electrons and protons.

a)

True

b)

False

20.
What types of charges attract?
a)
Positive and Positive
b)
Positive and Neutral
c)
Negative and Neutral
d)
Positive and Negative
21.

What is the major difference between static electricity and current electricity?

a)

Current electricity involves a continuous flow of elecrons; static electricity is a sudden transfer of protons

b)

Current electricity can be deadly; static electricity is almost always safe

c)

In current electricity, there's a single transfer of electrons; in static electricity, there's a steady flow of electrons

d)

Current electricity involves a flow of electrons; static electricity involves a single transfer of electrons

22.

Bending water with a charged balloon is an example of what type of charging (charging an object without touching)

a)

friction

b)

induction

c)

conduction

23.

During a lab a balloon was rubbed with a wooly fabric. This is an example of which type of charging?

a)

conduction

b)

friction

c)

induction

24.

the charging of an object by the contact of a charged object to a neutral object (like touching a door knob)

a)

induction

b)

conduction

c)

friction

25.
If two charges repel each other, the two charges must be
a)
Positive and neutra
b)
Positive and negative
c)
positive and neutral
d)
negative and negative
26.
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.
27.
If you bring a charged object near an electrically neutral surface without allowing the object to touch the surface, the charges in the surface are rearranged by
a)
friction.
b)
convection.
c)
induction.
d)
conduction.
28.
Charging by ____ occurs when electrons are transferred from one object to another by direct contact.
a)
reduction
b)
induction
c)
conduction
d)
friction
29.
The buildup of charges on an object is called:
a)
positive charge
b)
static charge
c)
negative charge
d)
static discharge
30.
Which type of charge moves from one object to another to cause static electricity?  
a)
Atom
b)
Proton
c)
Electron
d)
Neutron
31.
The loss of static electricity as electric charges move from one object to another.
a)
Electric field
b)
Electric force
c)
static electricity
d)
static discharge
32.
What method of static charging is shown in this picture
a)
Polarization
b)
Friction
c)
Induction
d)
Conduction
33.
Lightning is _____.
a)
a buildup of neutrons
b)
harmless
c)
a high-voltage electric current
d)
a large discharge of static electricity
34.
What types of charges attract?
a)
Positive and Positive
b)
Positive and Neutral
c)
Negative and Neutral
d)
Positive and Negative
35.
What charge does a proton have?
a)
negative (-)
b)
positive (+)
c)
neutral or no charge (0)
36.
What charge does an electron have?
a)
negative (-)
b)
positive (+)
c)
neutral or no charge (0)
37.
If a substance has a higher number of electrons than protons on its surface, what type of charge does it have?
a)
A positive charge.
b)
A negative charge.
c)
A neutral charge
d)
No charge at all
38.

What happens when you touch a metal doorknob after rubbing your shoes on the carpet?

a)

The doorknob sends a burst of electric current into your body

b)

Millions of electrons go from your finger into the doorknob

c)

The doorknob sends millions of electrons into your finger

d)

Your finger becomes negatively charged

39.

What is static electricity caused by?

a)

A balance of power

b)

A balance of positive and negative charges

c)

A buildup of negative charges in one place

d)

An imbalance of protons and neutrons

40.
An object becomes postiively charged when which of the following occurs?
a)
loses electrons
b)
gains electrons
c)
loses protons
d)
gains neutrons
41.
Which of the following an insulator?
a)
copper
b)
wood
c)
silver
d)
salt water
42.

How is static charge accumulation avoided in operating theatres?

a)

Using conductive rubber floor

b)

Giving utensils opposite Charge

c)

Giving utensils same Charge

d)

properly grounding floors

43.

What are the dangers of static charge accumulation in operating theatres?

a)

Attraction of germs and dust

b)

repulsion of germs

c)

attraction of dust only

d)

Reducing cleanness

44.
An object becomes charged when the atoms in the object gain or lose
a)
electrons
b)
protons
c)
neutrons
d)
all of the above
45.
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.
46.
If you bring a charged object near an electrically neutral surface without allowing the object to touch the surface, the charges in the surface are rearranged by
a)
friction.
b)
convection.
c)
induction.
d)
conduction.
47.
Objects that have opposite charges
a)
are attracted to each other, and the force between the objects pulls them together.
b)
are attracted to each other, and the force between the objects pushes them apart.
c)
are repelled by each other, and the force between the objects pulls them together.
d)
are repelled by each other, and the force between the objects pushes them apart.  
48.
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.
49.
Charging by ____ occurs when electrons are transferred from one object to another by direct contact.
a)
reduction
b)
induction
c)
conduction
d)
friction
50.
Which part of Coulomb's Law is always squared?
a)
distance
b)
charge
c)
Coulomb's constant
d)
force
51.
Walking across a carpet is an example of charge being transferred by
a)
friction.
b)
induction.
c)
contact.
d)
static electricity
52.

True or false: Static means unmoving or unchanging

a)

True

b)

False

53.

These allow electrons to pass through them easily

a)

Conductors

b)

Insulators

c)

Atoms

d)

Nucleus

54.

These do NOT allow electrons to pass through them easily

a)

Conductors

b)

Insulators

c)

Atoms

d)

Nucleus

55.

Which of the following is an example of a CONDUCTOR

a)

A metal tube

b)

A cotton shirt

c)

A rubber tire

d)

A wooden bucket

56.

Which of the following is NOT an example of an INSULATOR

a)

A metal tube

b)

A cotton shirt

c)

A rubber tire

d)

A wooden bucket

57.

This is when electrons are rubbed off one object and rubbed onto another

a)

Friction

b)

Conduction

c)

Induction

58.

This is when electrons move from one object to another through touch

a)

Friction

b)

Conduction

c)

Induction

59.

This is when electrons are moved using the force of an electric field.

a)

Friction

b)

Conduction

c)

Induction

60.

This instrument can detect static charges

a)

Magnets

b)

Grounding Objects

c)

Discharge

d)

Electroscope

61.

Grounding neutralizes electric charges by connecting it to the_____

a)

Electroscope

b)

Earth

c)

Tallest building

d)

Ocean

62.

Static discharge is when _____ jump from a charged object to one that is differently charaged

a)

Protons

b)

Neutrons

c)

Electrons

63.

The list of all known atoms in the universe.

(a)  

64.

The number of protons in the nucleus of an atom (two words)

(a)  

65.

What charge is given to ink droplets before they are forced out of the nozzle?

a)

Positive

b)

Neutral

c)

Negative

d)

Same as deflecting plates

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