WorksheetsElectromagnetic Forces Quiz
Total questions: 55
Worksheet time: 57mins
Which of the following are conductors. (Check all that apply)
copper
Rubber
plastic
Aluminum Foil
Iron nail.
Which of these circuits will not allow the lightbulb to light up
Select both of the series circuits.
Select both of the parallel circuits.
Which of these statements are false?
Electricity is the flow of electrons.
Opposite charges attract
Current running through a wire cannot create a magnetic field.
Like charges rebel.
Follow the path.
Which image demonstrates a flow of electrical current ?
Open Circuit
Closed Circuit
A Circuit is the pathway through which electricity flows.
True
False
Which Image has an electrical current flowing through (closed Circuit) ?
A material that does not allow electricity to flow through it
Conductor
Insulator
Resistor
A material that reduces the flow of electrons
conductor
insulator
resistor
A material that allows electricity to flow through it easily
conductor
insulator
resistor
(a)
Iron, Nickel and cobalt are all (a) materials
Where on a magnet is the magnetic force the strongest?
at the poles
in the middle
above the magnet
below the magnet
(a)
Negative particles in an atom that are used to produce electricity are called
electrons
protons
photons
neutrons
they repel
they attract
they cancel each other out
the strength of the magnet is doubled
Choose the TWO correct answers: What are two ways to increase the strenth of an electromagnet?
Increase the number of coils/loops
increase the strength of the current
Use a bigger magnet
Use a bigger nail
Which of the following BEST describes the concept of magnetism?
The ability of an object to bounce off another object
The process of liquid changing into a gas
The force that attracts or repels certain materials
The process of converting light energy into chemical energy
Two North magnets will
attact
repel
nothing
fly out of your hands violently
True or False: All metals are attracted to magnets
True
False
Its magnetic field is strongest near its center.
It is surrounded by a magnetic field.
The north pole is stronger than the south pole.
The south pole is stronger than the north pole.
A north pole and a south pole will pull toward each other.
(a)
(a)
What happens when opposite poles of two magnets are brought close together?
Nothing
The attract each other
They both become negatively charged
They repel each other
(a)
Which of the following materials is a good conductor of electricity?
Copper
Wood
Plastic
Rubber
(a)
Iron filings can be used to show (a) which is where the magnetic force occurs,
Which material is most commonly attracted to a magnet?
Wood
Plastic
Glass
Iron
cold
round
closer together
farther apart
A student has four items - an iron bar, a light bulb, a battery, and wire. Which of these items does the student need to make an electromagnet?
a. battery, iron bar, wire
c. iron bar, light bulb, and wire
c. iron bar, light bulb, and wire
d. iron bar, light bulb, and battery
Which of these is a way to make an electromagnet stronger? (a)
What is needed to create an electric circuit?
Magnets
Insulation
Light
A closed loop
An electromagnet can only work if it has _____________
magnetic poles
a switch
electric current
a bar magnet
How is an electromagnet different from a bar magnet?
An electromagnet has only one pole
An electromagnet does not attract iron
an electromagnet can be turned on and off
an electromagnet does not have a magnetic field
Which electromagnet is stronger?
A
B
Which electromagnet is stronger?
A
B
Which electromagnet is stronger?
A
B
Which of the following is NOT a component of a basic electric circuit?
Wires
Magnet
Bulb
Battery
Which electromagnet is stronger?
A
B
Which electromagnet is stronger?
A
B
What is the purpose of an electromagnet?
To cool down an electrical circuit
To convert heat energy into light energy
To produce magnetic fields using electricity
To store electrical energy
Which electromagnet is stronger?
A
B
Which electromagnet will pick up LESS paper clips?
A
B
Which electromagnet will pick up MORE paperclips?
A
B
How can you increase the strength of an electromagnet?
Increase the number of wire coils
Reduce the number of wire coils
Use a shorter wire
Decrease the current flow
Which of these bests describes an electromagnet?
A permanent magnet made from electric currents.
A temporary magnet made from electric currents.
A temporary magnet made from magnetic currents.
What happens if a switch is open in a circuit?
Electricity stops flowing
Electricity flows faster
It overloads the circuit
The battery explodes
How does electricity flow in a circuit?
Toward the West
randomly
In one direction
In multiple directions
A closed path that electricity flows through
magnet
electromagnet
wire
circuit
