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WorksheetsElectrostatics
Total questions: 64
Worksheet time: 48mins
Name
Class
Date
1.
Two like charges:
a)
neutralize each other.
b)
repel each other.
c)
must be neutrons.
d)
attract each other.
2.
The charge of an electron is:
a)
Positive.
b)
Negative.
c)
Electrons have no charge
3.
An atom loses an electron. What type of charge does it have now?
a)
Positive
b)
Negative
4.
An atom gains an electron. What type of charge does it have now?
a)
Positive
b)
Negative
c)
No charge
5.
Charged objects are not attracted to neutral objects.
a)
True
b)
False
6.
When a balloon is rubbed on clothes it acquires a charge by ___________.
a)
Induction
b)
Reduction
c)
Friction
d)
Concuction
7.
After you rub a balloon on your hair, what charge does the balloon have?
a)
Positive
b)
Negative
c)
Neutral
8.
After you rub a balloon on your hair, what charge does your hair have?
a)
Positive
b)
Negative
c)
Neutral
9.
When a glass rod is rubbed with silk and the glass rod becomes positively charged, what happens to the electrons?
a)
They are removed from the rod.
b)
They are added to the rod.
10.
What do you call the process of charging a conductor by bringing it near another charged object?
a)
Induction
b)
Polarization
c)
Neutralization
d)
Conduction
11.
Which of the following is not a good conductor of electricity?
a)
Copper
b)
Silver
c)
Glass
d)
Aluminum
12.
Which of the following is not a good insulator?
a)
Copper
b)
Glass
c)
Rubber
d)
Wool
13.
The Law of Conservation of Charge states that:
a)
all atoms have more protons than electrons.
b)
only protons can be rubbed off of an atom.
c)
charge cannot be created or destroyed.
d)
charge cannot be transferred.
14.
Assume a rubber rod is rubbed against a rabbit fur and gains 5 electrons. Which of the following is true?
a)
The fur lost 5 electrons.
b)
The fur gained 5 electrons.
c)
The fur gained 5 protons.
d)
The fur lost 2 electrons.
15.
Which of the following labeled points is in the region with the strongest force of electric charge?
a)
A
b)
B
c)
C
d)
D
16.
What is the charge inside of a Van de Graaff generator?
a)
Negative
b)
Neutral
c)
Positive
d)
positive at the top, Negative at the bottom.
17.
What is the unit of electric charge?
a)
Volt
b)
Amp
c)
Coulomb
d)
Ohm
18.
If you double the distance away from a charged particle, the total electric field of that particle:
a)
is 1/2.
b)
is 1/4.
c)
is doubled.
d)
stays the same.
19.
When is the test on this material?
a)
Tuesday, March 8, 2016
b)
Never
c)
It wasn't announced!
d)
We don't have to take it and still get 100%, because we are that special.
20.
An object with a negative charge would _______ an object with a neutral charge.
a)
Attract
b)
Repel
c)
Do nothing
21.
An object with a positive charge would ______ an object with a neutral charge
a)
Attract
b)
Repel
c)
Do nothing.
22.
Two objects with negative charges would:
a)
Attract
b)
Repel
c)
Do nothing.
23.
Where do electrons go when you rub a balloon on your hair?
a)
On the balloon.
b)
On your hair.
c)
Nowhere.
24.
True or False: Electric charges are the same as magnetic charges
a)
True
b)
False
25.
Which part of the atom is negatively charged?
a)
Proton
b)
Neutron
c)
Electron
26.
An atom that has more protons than electrons would have what charge?
a)
Positive
b)
Negative
c)
Neutral (Zero)
27.
An atom that has more electrons than protons would have what charge?
a)
Positive
b)
Negative
c)
Neutral (Zero)
28.
What variables affect the magnitude of the electric force between two objects with charge?
a)
charge of the first object
b)
charge of the second object
c)
distance between the charges
d)
all of the answers
29.
What does it mean for an atom to be neutral?
a)
It has no charge.
b)
It has neutrons.
c)
It isn't attracted to other atoms.
d)
It has no net charge.
30.
How is the electric force between two charges affected when both of the charges are doubled?
a)
Four times as much.
b)
Two times as much.
c)
Half as much.
d)
One-quarter as much.
31.
What type of interaction occurs between two negatively charged objects?
a)
Attract each other.
b)
Repel each other.
repel
repel
32.
What type of interaction occurs between two positively charged objects?
a)
Attract
b)
Repel
33.
How does the magnitude of the electric force between two charged particles change when the particles are brought closer together?
a)
Increases
b)
Decreases
34.
An atom gains an electron. What type of charge does it have now?
a)
Positive
b)
Negative
negative
negative
35.
An atom loses an electron. What type of charge does it have now?
a)
Positive
b)
Negative
36.
What is the SI unit for electric charge?
a)
Newtons
b)
Coulombs
c)
Kilograms
d)
Joules
37.
When does an attractive force occur between two charged objects?
a)
Like charges.
b)
Unlike charges.
38.
When does a repulsive force occur between two charged objects?
a)
Like charges.
b)
Unlike charges.
39.
When a glass rod is rubbed with silk and the glass rod becomes positively charged, what happens to the electrons?
a)
They are removed from the rod.
b)
They are added to the rod.
40.
What materials transfer charge most easily?
a)
Conductors
b)
Insulators
41.
What do you call the process of charging a conductor by bringing it near another charged object and grounding it?
a)
induction
b)
polarization
c)
neutralization
d)
conduction
42.
Both insulators and conductors can be charged by:
a)
Contact
b)
Induction
c)
Grounding
d)
Polarization
43.
Unlike insulators, conductors can be charged by:
a)
Induction
b)
Contact
c)
Polarization
d)
Grounding
44.
What is the overall charge of an object that has been charged by polarization?
a)
Positive
b)
Negative
c)
Neutral
45.
How is the electric force between two charges affected when the distance between the charges is doubled?
a)
Four times as much.
b)
Two times as much.
c)
Half as much.
d)
One-quarter as much.
46.
How is the electric force between two charges affected when the distance between the charges is halved?
a)
Four times as much.
b)
Two times as much.
c)
Half as much.
d)
One-quarter as much.
47.
Two point charges initially 4 cm apart are moved to a distance of 12 cm apart. By what factor does the resulting electric force between them change?
a)
8
b)
1/3
c)
1/9
d)
9
48.
If the charge is tripled for each of two identical charges maintained at a constant separation, the electric force between them will be changed by what factor?
a)
3
b)
9
c)
1/3
d)
1/9
49.
If a conductor is in electrostatic equilibrium, the electric field inside the conductor is:
a)
Positive
b)
Negative
c)
Zero
d)
Perpendicular
50.
What is the unit of electric charge?
a)
Volts
b)
Amps
c)
Coulombs
d)
Ohms
51.
Which part of the atom moves to create electricity?
a)
Proton
b)
Neutron
c)
Electron
52.
Which part of the atom is positively charged?
a)
Proton
b)
Neutron
c)
Electron
53.
Which part of the atom is negatively charged?
a)
Proton
b)
Neutron
c)
Electron
54.
An atom that has more protons than electrons would have what charge?
a)
Positive
b)
Negative
c)
Neutral (Zero)
55.
An atom that has more electrons than protons would have what charge?
a)
Positive
b)
Negative
c)
Neutral (Zero)
56.
Electrostatic force F is directly proportional to:
a)
r2 (distance squared)
b)
q1
c)
q2
d)
both q1 and q2
57.
When distance increases, electrostatic force ____________. We call this relationship ____________ proportional.
a)
decreases; directly
b)
decreases; inversely
c)
increases; inversely
d)
increases; directly
58.
The accumulation of excess electric charge on an object is called:
a)
Static electricity
b)
Electric discharge
c)
Resistance
d)
Circuit
59.
Compared to insulators, metals are better conductors of electricity because metals contain more free:
a)
protons
b)
electrons
c)
positive ions
d)
negative ions
60.
A positive charge and a negative charge held near each other are released. As they move, the force on each particle:
a)
increases.
b)
stays the same.
c)
decreases.
61.
A material in which electrons are able to move easily.
a)
Circuit
b)
Insulator
c)
Resistance
d)
Conductor
62.
What is the smallest particle of matter called?
a)
atom
b)
tiny thing
c)
centimeter
d)
microbe
63.
According to the Law of Conservation of Energy, You cannot create or _________ energy.
a)
eat
b)
hug
c)
destroy
d)
transform
64.
Electric forces can be either attractive or repulsive. In contrast, gravitational force is:
a)
Only attractive.
b)
Only repulsive.
c)
Both attractive and repulsive.
d)
Neither attractive nor repulsive.
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