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Copy these into your study guide.
Homework answers
• 4. Magnetism = force of attraction (pull) or
repulsion (push away) of magnetic materials
• 5. Magnetic Field = the area around a magnet
that applies the push or pull, but the magnet
doesn’t touch the object
• 7. The magnetic field is strongest at the poles.
• 8. A coil of wire spinning around a magnet OR a
magnet spinning around a coil of wire can form
an electric current.
Once you are done, login to Socrative.
APK: With the word
electromagnet. Type the 2 words
that make up electromagnet.
EQ: What are the properties of an
electromagnet?
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Listen to me read the EQ.
Type the EQ on your I-pad/board.
What are the 3 most important words?
Tell your group the 3 most important words.
Select the 3 most important words.
Whisper to me the 3 most important words.
What will you know at the end of class?
Lesson Importance: WHY? Oh, WHY?
• Why do you need to know What are the
properties of an electromagnet?
• Think…..
• Think…..
• Think….
• Tell your group your answer.
• Type your answer on your I-pad/board.
Video Clips
• https://www.youtube.com/watch?v=XBWy9gz
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• https://www.youtube.com/watch?v=Na6URHxOtU
• https://www.youtube.com/watch?v=wX9QBw
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Electromagnets
• Formed when a wire in an electric circuit is
wrapped around an iron core
• produces a magnetic field
• Draw an electromagnet on your I-pad/ board.
• If the electric current stops flowing, the
magnet will lose its magnetism.
• TEMPORARY magnet
The circuit breaks in your electromagnet. What will
happen to your electromagnet? Go to the correct
corner.
a. The magnetism will increase.
b. The magnetism will decrease.
c. The magnetism will stay the same.
d. The magnetism will be lost.
D
What makes an electromagnet more
effective/stronger?
• increasing number of coils,
• increasing the size of the iron core,
• & increasing the size of the battery
• Independent Practice: On SOCRATIVE
Same format as below..
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If you do not have an index card…
WRITE YOUR NAME, DATE, &PERIOD
# of coils
# of paperclips
3
________
5
________
10
________
15
________
Close: Cause and Effect???
Summarize what happened or would happen
when you did not have a complete circuit with a
cause- and- effect statement. Use evidence from
your investigation in your statement.
Example:
When we had the battery, wire and nail all connected
the electromagnet picked up paperclips. When we
unconnected the battery the electromagnet did not pick
up any paper clips because there was no electricity
running through the system.
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