WorksheetsUnit Test- Electricity and Magnetism
Total questions: 26
Worksheet time: 13mins
Which is NOT a conductor ?
plastic
metals
salt water
graphite
Atoms are made up of parts called......
electricity, magnetism, and protons
atoms, protons, electricity
electrons, protons, and neutrons
magnetism, protons, electrons
Protons have a ___________ charge.
negative
positive
neutral
Electrons have a _______________ charge.
negative
positive
neutral
What is the most powerful form of static electricity?
walking on the carpet then touching a door knob
rubbing two balloons together
Lightning
Which of the following best explains static electricity?
An explosion of electrons
Electrons cannot move
Movement of protons
When we rub two insulators together
Which of the following are attracted to each other?
two electrons
two protons
an electron and a neutron
an electron and a proton
Which material would be best for an electrical worker to use to protect his hands?
a conductor
an insulator
water
a metal
In a circuit, the source is a...
load
battery
switch
resistor
A switch is inserted into a series of Christmas lights. During the night the switch is left open. The lights will.....
continue to burn
become a parallel circuit
be turned off
burn brighter
Which is a load?
battery
wires
switch
a light bulb
Which is powered by electricity?
microwave
television
fridge
All of the above
Magnetic field lines.....
show the area of magnetic force
can never be changed
are the signals from TV
exists only at the north and south poles
The north pole of the magnet will....
attract another north pole of a magnet
spin in a circle
happen only in a bar magnet
repel another north pole of a magnet
What makes an electromagnet stronger?
using rubber
using batteries
coiling the wire
making the magnet spin
How are electromagnets different from magnets?
they can be turned on and off
their polarity can be reversed
their strength can be controlled
the are magnetic
Which of the following is not magnetic?
nickel
magnetite
air
iron nail
Which occurs when two magnets repel each other?
The same poles of the two magnets pull the magnets toward each other.
The opposite poles of the two magnets pull the magnets toward each other.
The same poles of the two magnets push the magnets away from each other.
The opposite poles of the two magnets push the magnets away from each other.
Which picture shows a circuit that energy can flow through to make the light bulb glow?
What is the energy source of an electrical circuit that contains a light bulb, a battery, some wires, and a bell?
the bell
the wires
the battery
the light bulb
The south pole of Magnet 1 will move toward the north pole of Magnet 2.
The south pole of Magnet 1 will push the north pole of Magnet 2 away.
The outside poles will become the same as the inside poles.
The outside poles will lose their magnetic properties.
Alyssa’s hair removed positive charges from the hat.
The hat removed positive charges from Alyssa’s hair.
Alyssa’s hair removed negative charges from the hat.
The hat removed negative charges from Alyssa’s hair.
As voltage goes up, what happens to current?
Current stays the same.
Current goes up.
Current goes down.
Current drops to 0 A.
Identify which of the solenoids and electromagnets has the strongest magnetic field.
A
B
C
D
What is being shown in the picture above?
two magnets repelling one another
a magnet's magnetic field
magnetic domains
a bar
Would the balloons in the picture attract or repel one another?
attract
repel
