WorksheetsELECTRICITY
Total questions: 55
Worksheet time: 57mins
Name
Class
Date
1.
Electricity is the flow of ______.
a)
electrons
b)
protons
c)
neutrons
d)
atoms
2.
A material in which electrons are able to move easily
a)
Circuit
b)
Insulator
c)
Resistance
d)
Conductor
3.
A material in which electrons are not able to move easily
a)
Circuit
b)
Insulator
c)
Resistance
d)
Conductor
4.
tiny particles that have a negative charge
a)
protons
b)
neutrons
c)
electrons
d)
circuits
5.
What charge does a proton have?
a)
negative (-)
b)
positive (+)
c)
neutral or no charge (0)
6.
What charge does an electron have?
a)
negative (-)
b)
positive (+)
c)
neutral or no charge (0)
7.
Which is not a Conductor?
a)
Foil
b)
Penny
c)
Iron
d)
Rubber
8.
Which is not an insulator?
a)
Wood Block
b)
Glass
c)
Eraser
d)
Water
9.
What is study of the movement or the transfer of electrons?
a)
Biology
b)
Electricity
c)
Physics
d)
Chemistry
10.
Name the three parts of an atom.
a)
Protons, ions, neutrons
b)
Protons, electrons, neutrons
c)
Ions, electrons, neutrons
d)
Electrons, protons, ions
11.
Alike charges ______ unlike charges _______
a)
repel, attract
b)
attract, repel
c)
attract, attract
d)
repel, repel
12.
The correct name for the "Neutral" coductor
a)
Ungrounded
b)
Grounded
c)
Grounding
d)
Power Line
13.
In a conducting material,
a)
electrons cannot move easily
b)
protons freely move around
c)
electrons freely move around
d)
neutrons cannot move easily
14.
In insulators,
a)
electrons cannot move easily
b)
protons freely move around
c)
electrons freely move around
d)
neutrons cannot move easily
15.
Combing your hair gives it a charge through the process of:
a)
induction
b)
conduction
c)
grounding
d)
friction
16.
Eliminating excess charges by allowing them to escape to the Earth is:
a)
induction
b)
conduction
c)
grounding
d)
friction
17.
Negative electric charge is formed when an object:
a)
loses electrons
b)
gains electrons
c)
gains protons
d)
loses neutrons
18.
Which of the following will attract each other?
a)
a proton and a proton
b)
a neutron and an electron
c)
a proton and an electron
d)
a neutron and a proton
19.
Compared to insulators, metals are better conductors of electricity because metals contain more free
a)
protons
b)
electrons
c)
positive ions
d)
negative ions
20.
The accumulation of excess electric charge on an object is called
a)
Static electricity
b)
Electric discharge
c)
Resistance
d)
Circuit
21.
A material in which electrons are able to move easily
a)
Circuit
b)
Insulator
c)
Resistance
d)
Conductor
22.
The process of transferring charge by touching or rubbing
a)
Induction
b)
Conduction
c)
Friction
d)
Conductor
23.
What is the smallest particle of matter called?
a)
atom
b)
tiny thing
c)
centimeter
d)
microbe
24.
According to the Law of Conservation of Energy, You cannot create or _________ energy.
a)
eat
b)
hug
c)
destroy
d)
transform
25.
A balloon is rubbed against a student's hair and then touched to a wall. The balloon sticks to the wall due to
a)
magnetic forces between the particles of the balloon and the particles of the wall
b)
electrostatic forces between the particles of the balloon and the particles of the wall
c)
magnetic forces between the particles of the wall
d)
electrostatic forces between the particles of the balloon
26.
A negatively charged plastic comb is brought close to, but does not touch, a small piece of paper. If the comb and the paper are attracted to each other, the charge on the paper
a)
must be positive
b)
must be negative
c)
may be neutral or negative
d)
may be neutral or positive
27.
Two electrically charged identical-sized metal spheres, A (charge of -4) and B (charge of +8). If the spheres are brought into contact, which sphere will have a net gain of electrons?
a)
both A and B
b)
neither
c)
only A
d)
only B
28.
When a plastic rod is rubbed with wool, the wool acquires a positive charge because
a)
protons are transferred from the wool to the rod
b)
protons are transferred from the rod to the wool
c)
electrons are transferred from the rod to the wool
d)
electrons are transferred from the wool to the rod
29.
Which of the following is a false statement about electrostatic force.
a)
Bringing charges closer together strengthen the force.
b)
The electrostatic constant remains the same.
c)
The values of the two charges is always the same.
d)
Electrostatic force can be attractive or repulsive
30.
A woman's hair stands out when she is in contact with a charged Van de Graaff generator. The reason her hair stands out is because
a)
hair strands are at a high voltage.
b)
she is in a strong electric field.
c)
like charges repel.
d)
hair is a good conductor.
31.
A Van de Graaff generator is a machine that
a)
generates light.
b)
works like a motor.
c)
generates AC electricity.
d)
builds up high voltages.
32.
Electrons and protons have the same charge and therefore attract each other.
a)
true
b)
false
33.
Electric charge is neither created nor destroyed, but can be rearranged.
a)
true
b)
false
34.
A material is a good insulator if outer electrons of atoms in the material are free to roam around.
a)
true
b)
false
35.
When an object is charged by induction, electrons flow from the ground onto the object, or from the object onto the ground.
a)
true
b)
false
36.
When an object is charged by induction, electrons flow from the ground onto the object, or from the object onto the ground.
a)
true
b)
false
37.
An atom that is electricity polarized vibrates in only one direction.
a)
true
b)
false
38.
Atomic nuclei of almost all atoms consist of
a)
only protons
b)
protons and neutrons
c)
protons and electrons
d)
neutrons and electrons
39.
An atom gains an electron. What type of charge does it have now?
a)
positive
b)
negative
c)
No charge
40.
Charged objects are not attracted to neutral objects
a)
True
b)
False
41.
When a balloon is rubbed on clothes it acquires a charge by ___________
a)
Induction
b)
reduction
c)
friction
d)
concuction
42.
Where do electrons go when you rub a balloon on your hair?
a)
Onto the balloon
b)
Into your hair
c)
Nowhere
43.
After you rub a balloon on your hair, what charge does the balloon have?
a)
Positive
b)
Negative
c)
Neutral
44.
After you rub a balloon on your hair, what charge does your hair have?
a)
Positive
b)
Negative
c)
Neutral
45.
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
46.
When a plastic rod is rubbed with wool, why does the wool acquire a positive charge?
a)
Protons are transferred from the rod to the wool.
b)
Protons are transferred from the wool to the rod.
c)
Electrons are transferred from the rod to the wool.
d)
Electrons are transferred from the wool to the rod.
47.
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.
48.
An object with a negative charge would _______ an object with a neutral charge.
a)
Attract
b)
Repel
c)
Do nothing
49.
Which part of the atom moves to create electricity?
a)
Proton
b)
Neutron
c)
Electron
50.
Which part of the atom is positively charged?
a)
Proton
b)
Neutron
c)
Electron
51.
What is the overall charge of an object that has been charged by polarization?
a)
Positive
b)
Negative
c)
Neutral
52.
Compared to insulators, metals are better conductors of electricity because metals contain more free
a)
protons
b)
electrons
c)
positive ions
d)
negative ions
53.
The Law of Electrostatics says that objects that have the same charge...
a)
push away from each other
b)
pull together
c)
release nuclear energy
d)
fall in love
54.
An atom loses an electron. What type of charge does it have now?
a)
positive
b)
negative
55.
The process of transferring charge by touching or rubbing
a)
Induction
b)
Conduction
c)
Friction
d)
Conductor
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