WorksheetsElectricity
Total questions: 27
Worksheet time: 14mins
Name
Class
Date
1.
Electric current passes easily through a
a)
resistor
b)
conductor
c)
insulator
d)
switch
2.
When two objects have different electric charges, they
a)
pull toward each other
b)
gain energy
c)
lose matter
d)
push away from each other
3.
Every time you turn on a light, you
a)
open a closed circuit
b)
close an open circuit
c)
add a source of power to the circuit
d)
remove a source of power from a circuit
4.
Electric current is the flow of
a)
positive charges through matter
b)
negative charges through matter
c)
magnetism through the matter
d)
energy and light through matter
5.
Electric wire is coated with plastic or rubber because these materials
a)
melt very slow
b)
conduct the flow of electricity
c)
are expensive and easy to make
d)
slow or stop electricity
6.
Frayed or broken insulation on wires can be dangerous because they
a)
prevent electricity from flowing
b)
cause the power to shut off
c)
cause a fire or electric shock
d)
will blow a fuse
7.
Electric current will flow through a circuit as long as the
a)
switch is open
b)
charges are unequal
c)
path is unbroken
d)
wires are insulated
8.
Which of these substances is the best conductor of electricity?
a)
air
b)
rubber
c)
plastic
d)
metal
9.
The purpose of insulation on an electric wire is to
a)
make the electric current stay on its path
b)
heat the wire and generate energy
c)
resist the flow of electricity and light up
d)
close the circuit and make electricity flow
10.
If you connect too many wires to one circuit, the wires can
a)
blow up
b)
generate more power than heat
c)
overheat and cause a fire
d)
create an electromagnet
11.
Like charges will _________each other
a)
attract
b)
repel
12.
An electric current passes easily through a wire that is a ___________
a)
generator
b)
conductor
c)
insulator
d)
switch
13.
An electric current does not pass through a(n)___________
a)
switch
b)
fuse
c)
insulator
d)
filiment
14.
A magnet that is created when current flows through a coiled wire is a(n)___________
a)
electromagnet
b)
battery
c)
generator
d)
conductor
15.
The build up of charges on an object caused by rubbing is __________ electricity.
a)
current
b)
static
16.
Opposite charges will ________ each other.
a)
attract
b)
repel
17.
An object that is used to open and close circuits is a __________.
a)
fuse
b)
switch
c)
filament
d)
insulator
18.
An object that is used to open and close circuits is a __________.
a)
fuse
b)
switch
c)
filament
d)
insulator
19.
The flow of negative charges through matter is ___________ electricity.
a)
battery
b)
static
c)
current
d)
fuse
20.
The flow of negative charges through matter is ___________ electricity.
a)
battery
b)
static
c)
current
d)
fuse
21.
The flow of negative charges through matter is ___________ electricity.
a)
battery
b)
static
c)
current
d)
fuse
22.
The flow of negative charges through matter is ___________ electricity.
a)
battery
b)
static
c)
current
d)
fuse
23.
The flow of negative charges through matter is ___________ electricity.
a)
battery
b)
static
c)
current
d)
fuse
24.
The flow of negative charges through matter is ___________ electricity.
a)
battery
b)
static
c)
current
d)
fuse
25.
The flow of negative charges through matter is ___________ electricity.
a)
battery
b)
static
c)
current
d)
fuse
26.
The flow of negative charges through matter is ___________ electricity.
a)
battery
b)
static
c)
current
d)
fuse
27.
A device that produces electric current by spinning a coiled wire within a magnetic field is a ______________.
a)
current
b)
generator
c)
battery
d)
fuse
100 %
