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Worksheets4th Grade: Chapter 5
Total questions: 53
Worksheet time: 31mins
Why do electricians always wrap wires in plastic?
Plastic comes in many different colors
Plastic is a good electrical conductor
Plastic makes the wires easy to bend
Plastic is a good electrical insulator
Which of these materials is a good conductor of electricity?
Rubber
Metal
Newspaper
Glass
The student conducted an experiment with circuits. Why was the bulb bright when he closed the switch?
The switch produced an electric current
Closing the switch broke the circuit
Closing the switch completed the circuit
The switch did not make a difference
How can it be explained that someone's hair can stick to a balloon?
There is static electricity
There is too much dust in the air
A parallel circuit was too long
The person needs to wash his hair
A penny is an example of
An insulator
an electron
a proton
a conductor
In this picture, the iron filings show the shape of the magnetic -
pole
core
field
axis
What contribution did Thomas Edison make toward the study of electricity?
He invented the light bulb
He invented a generator that would produce electricity
He discovered the nucleus of an atom
He discovered that lightning is a form of electricity
Which would make the strongest electromagnet?
A battery with 4 wire coils around a nail
A battery with 6 wire coils around a nail
A battery 10 wire coils around a nail
A battery with 8 wire coils around a nail
The space around a magnet where the force of the magnet can act is called-
static electricity
lightning
a magnetic field
resistance
What force causes two metals to repel or attract?
Friction
Gravity
Magnetism
Electricity
Who is the scientist that created the lightning rod?
Michael Faraday
Thomas Edison
Benjamin Franklin
George Washington
In order for electricity to flow you need_________?
wire
battery
closed circuit
light bulb
What do we call the flow of electricity around a circuit?
electric current
insulator
conductor
electric circuit
A material that allows heat or electricity to flow through it is a ______________?
insulator
circuit
current
conductor
Material that does not allow heat or electricity to flow through is a _____________________.
conductor
insulator
wire
current
Rubber does not allow electricity to flow through it, so it is a _______________________________.
conductor
insulator
One path circuit is called a ______________ circuit.
parallel
closed
series
open
Which of these is caused by static electricity?
A magnet attracts a paper clip
Glue holds two pieces of paper together
Socks taken from a clothes dryer stick together
Ice sticks to a car’s windshield
Which choice describes the behavior of an electric charge?
Like charges attract. Unlike charges repel.
Like charges repel. Unlike charges attract.
Like charges attract. Unlike charges attract.
Like charges repel. Unlike charges repel.
Which device or devices could be removed without breaking the electric circuit?
Only the bulb
Only the switch
The battery and the switch
The bulb and the switch
Like or similar poles on two magnets will __________.
Attract each other
Have no effect
Repel each other
All of these
Which type of circuit has more than one path for the electrical current?
The series circuit
The parallel circuit
They both have more than one path
Neither circuit has more than one path for the electrical current
Materials through which electricity will not flow is a ____________
insulator
conductor
parallel
radiant
The electricity that flows through a circuit is called ____________
parallel
series
current
battery
When each object is connected to the cell separately a _____________ is formed.
parallel circuit
closed circuit
open circuit
Two objects connected to a cell in a single path make up a _________ circuit.
closed
open
parallel
series
A path that electricity can move through is called a/an __________ circuit.
closed
series
open
parallel
The buildup of electrical charge on a material is _____________.
static electricity
discharge
circuit
Which naturally occurring phenomenon is caused by static electricity?
thunder
lightning
rain
hail
A _____ is a pathway for the flow of electricity.
receiver
wire
switch
circuit
When electrons move or change places, it's called _________.
static electricity
insulator
open circuit
circuit
If electricity is UNABLE to flow and the motor doesn't work, what type of circuit is it?
closed circuit
open circuit
A/An ________________ circuit is when electricity is ABLE to flow and the motor works.
open
closed
What charge does an electron have?
negative (-)
positive (+)
neutral or no charge (0)
If an object has more positive than negative charges, its electrical charge is...
positive
negative
neutral or no charge
opposite
If an object has more negative charges than positive charges, its electrical charge is...
positive
negative
neutral or no charge
opposite
Will the balloons ATTRACT or REPEL each other?
Will the balloons ATTRACT or REPEL each other?
Only negative charges can move from one material to another.
True
False
An object that has the SAME number of Positive and Negative charges has a . . .
Positive charge
Negative charge
Neutral charge
The buildup of electric charges is called . . .
static electricity
electric discharge
electric charge
the negative charges in the blue circle will .......the positive charges in the red circle
repel
attract
nothing happens
The object in the picture is............
Negatively charged
positively charged
Neutral
when the number of the negative charges and positive charges are the same ,the object is ..........
Negatively charged
positively charged
Neutral
Two objects with LIKE elecrical charges will
attract each other
even out in the end
repel each other
cause a spark
