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Worksheets6.0 Electromagnetism Pretest
Total questions: 12
Worksheet time: 16mins
When the N and S end of two different magnets come together they...
attract
repel
When the N and N of two different magnets come together they...
attract
repel
When the S and S of two different magnets come together they...
attract
repel
Match the following:
Permanent Magnet
an object that is magnetic
Magnetic
an object that is a magnet all the time
Magnetic Pole
north or south end of a magnetic where the field is strongest
Magnet
an object that is impacted by magnets but is not a magnet
Magnetic Materials
when something can exert magnetic forces
Magnetic Field lines point towards the (a) end of a magnet and away from the (b) end of the magnet.
If you cut a bar magnet in two what will the new magnets look like?
A
B
C
D
Where a magnetic field is strong the lines are (a) . Where a magnetic field is weak the lines are (b) .
Faraday's Law of Induction says that the faster a magnet passes through a coil the (a) the voltage induced on the coil. This also means the (b) a magnet passes through a coil, the (c) the voltage induced on the coil.
What is an electromagnet?
a magnet that becomes neutral due to electricity
a magnet created by electric current flowing through wires
a magnet that produces electricity
a electrical current that has magnets
Which of the following would have the weakest magnetic field?
Earth's magnetic field
a classroom permanent magnet
an electromagnet made of 20 coils of wire carrying 0.5 A around an iron core
True or False. Moving electric charges can create magnetism AND changing magnetic fields can cause electric charges to move.
true
false
Which of the following will increase the strength of an electromagnet?
changing the core to a permanent magnet
increasing the number of coils
changing the core to a soft magnet like iron
increasing the strength of the battery
