Note: another name for electrical current is electricity

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SPI 080712.1 Electromagnetic Induction
Use the right arrow button to advance through
the presentation
Science
Notes
Making Electricity Using Magnets

• Magnets and a coil of wire can create electrical
  current

• This process is called electromagnetic induction

• The magnet has to move through (or around) the
  coil

or
The coil has to move through (or around) the
magnet

• See the diagram below
• Notice that the bar magnet is moving through the
  coil of wire

Note another name for electrical current is
electricity
Note another name for a coil of wire is a
solenoid
Note Electromagnetic induction is how most
electricity is generated
Here is a picture of electromagnetic induction
in action
Here is the solenoid (coil of wire)
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Quick Review
SPI 080712.1 Electromagnetic Induction
Science
1) The two pictures below both show electromagnet
induction.
On your paper describe this process in two parts
(p439)
2) Picture 01 shows a bar magnet being pushed
through a solenoid.
How would you increase the electrical current?
(p439 Fig 2, Letter B)
3) Picture 02 shows an electrical generator.
What are the 5 key components of a generator ?
(p440 Fig 4)
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SPI 080712.1 Electromagnetic Induction
Science
Notes
1) The two pictures below both show electromagnet
induction.
Describe this process in two parts (p439)
Answer(s) Part 1 You must have a magnet and
coil of wire Part 2 You must move the magnet
through or around the coil OR move the coil
over or around the magnet
Picture 01
Picture 02
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SPI 080712.1 Electromagnetic Induction
Science
Notes
2) (Answer) Picture 01 shows a bar magnet being
pushed through a solenoid.
How would you increase the electrical current?
(p439 Fig 2, Letter B)
Picture 01
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SPI 080712.1 Electromagnetic Induction
Science
Notes
3) Picture 02 shows an electrical generator.
What are the 5 key components of a generator ?
(p440 Fig 4)
(4)
(1)
(2)
(5)
(3)
Picture 02
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SPI 080712.1 Electromagnetic Induction
Science
Notes
Holt Online Virtual Investigation
Complete the Virtual Investigation titled
"Electromagnetism" (See online chapter 16, and
click on the eActivities tab) Link Holt Online
Textbook Login Webpage User name ??? (get from
your teacher) Password ??? (get from your
teacher) Task 01 Write down 4 things you learn
while watching and completing the two stages of
this virtual investigation
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SPI 080712.1 Electromagnetic Induction
Science
Notes
Brainpop Video
View the Brainpop video titled "Electromagnetic
Induction" Link Brainpop Website User name ???
(get from your teacher) Password ??? (get from
your teacher) Task 01 Write down 5 things that
catch your attention as your watch this
video Task 02 Complete the Brainpop quiz