WorksheetsElectricity
Total questions: 21
Worksheet time: 11mins
Name
Class
Date
1.
Electricity always flows in what direction?
a)
From the negative end of the battery back to the negative end of the battery.
b)
From the negative end of the battery to the positive end of the battery.
c)
From the positive end of the battery to the negative end of the battery
d)
From the positive end of the battery back to the positive end of the battery.
2.
What happens when unlike charges come in contact?
a)
The materials repel each other.
b)
The materials will start an electric current.
c)
Nothing will happen.
d)
The materials will attract each other.
3.
A proton is:
a)
The particle that causes electricity.
b)
A particle with a negative charge.
c)
A particle with a positive charge.
d)
A particle with no charge.
4.
An insulator is:
a)
A material that allows current to flow through it easily.
b)
The flow of electrons through a material.
c)
A material that does not allow current to flow through it easily.
d)
A circuit with more than one path.
5.
What is voltage?
a)
A measure of how difficult it is for electrons to flow.
b)
A measure of the difference in electrical potential between objects that have opposite charges
c)
The continuous flow of electrons around a circuit.
d)
The fast, sudden movement of electrons from a negative to a positive material.
6.
What is resistance?
a)
A measure of how difficult it is for electrons to flow.
b)
A measure of the difference in electrical potential between objects that have opposite charges.
c)
The continuous flow of electrons around a circuit.
d)
The fast, sudden movement of electrons from a negative to a positive material.
7.
What is a parallel circuit?
a)
A circuit with only one path for the current to flow through.
b)
A circuit with more than one path for the current to flow through.
c)
A material that allows current to flow through easily.
d)
None of the above.
8.
The fast, sudden movement of excess electrons from a negative to a positive material is called:
a)
Repulsion
b)
Current Electricity
c)
Static Discharge
d)
Protons
9.
The flow of electrons around a circuit is called:
a)
Static Electricity
b)
An Open Circuit
c)
Parallel Electrons
d)
Current Electricity
10.
When is an object positively charged?
a)
When it has more neutrons than protons.
b)
When it has more electrons than protons.
c)
When it has more protons than electrons.
d)
When it has more electrons than neutrons.
11.
In order for a light bulb to light:
a)
it must be part of an open circuit.
b)
it must be part of a closed circuit.
c)
it must have static electricity.
d)
all of the above.
12.
What is the purpose of a lightning rod?
a)
to produce electricity
b)
to provide a path for excess electrons to reach the ground without harming anyone
c)
to produce lightning to power equipment in a building
d)
to alert planes of tall buildings
13.
A toaster or burner on an electric stove heats up by:
a)
creating resistance
b)
creating current
c)
static electricity
d)
static discharge
14.
On a dry day, you are taking laundry out of the dryer and a sock clings to your shirt. This is an example of:
a)
current electricity
b)
repulsion
c)
static electricity/charge
d)
protons
15.
An example of a series circuit would be:
a)
a house circuit
b)
Christmas lights
c)
headlights on a car
d)
all of the above
16.
The purpose of the filament in a light bulb is to:
a)
connect to the battery source
b)
serve as a conductor
c)
serve as a source of electrical power
d)
provide resistance so that it can get hot and glow
17.
The purpose of the filament in a light bulb is to:
a)
connect to the battery source
b)
serve as a conductor
c)
serve as a source of electrical power
d)
provide resistance so that it can get hot and glow
18.
According to Ohm's Law:
a)
as you increase resistance, you decrease current
b)
as you increase voltage, you increase current
c)
both a and b
d)
neither a nor b
19.
When you add an additional bulb to a series circuit, the bulbs will:
a)
get brighter
b)
break
c)
spin around
d)
get dimmer
20.
In order for a circuit to be complete, it needs:
a)
a power source, a conductive material (wire) and a light bulb or motor
b)
a light bulb, a power source, and a gap
c)
a power source, a gap, and a wire
d)
many light bulbs, and a switch
21.
What is the current of a 240 volt circuit with a resistance of 15 Ohms?
a)
3,600 amps
b)
16 amps
c)
255 amps
d)
225 amps
100 %
