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Electromagnets

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Last updated over 3 years ago
18 questions
What is an Electromagnet?
How Magnets Work
Factors of an Electromagnet - what would make it stronger or weaker?
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Why are magnets important?
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Why is A or B stronger?

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Question 13
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What is an electric generator?

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Why are electric generators important?

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What is an electric motor? What are electric motors used for?

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Question 18
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magnetic poles
the battery
an electric current
positive charges flowing
An electromagnet is created by
a closed path, or closed circuit
a magnetic object to wrap the wire around
a power source
a tightly closed wire
Atoms get their positive or negative charges by which particle moving?
Protons
Nucleus
Electrons
Neutrons
The elecricity that makes our earth a magnet comes from....
our sun
the liquid core of our earth
the magnetic field
all the electricity we use
The factors of an electromagnet are ____.
the amount of energy from the power source
the thickness of the core
the number of times the wire wraps around
The material that the wire is wrapped around
Which is stronger?
A
B
Which is weakest?
A
B
Which has the smallest force of attraction?
A
B
Which has the greatest force of attraction?
A
B
Which has the smallest force of attrationction?
A
B
Match each of the items with how magnetism is involved
Electric Generator
Electricity is used to CREATE a Magnetic Force
Electric Motor
Magnetic forces CREATES Electricity
Electromagnetic
Magentic Forces CREATES Motion with Electricity
Atoms are made up of two charges. The positive charge is found in the....
nucleus
electron
outer portion of the atom
neutron
Atoms need what to hold together?
nucleus
glue
protons
electromagnetic forces