1.2.8 Electromagnet
Presentation
•
Science
•
7th Grade
•
Practice Problem
•
Easy
+4
Standards-aligned
Laura O'Neill
Used 7+ times
FREE Resource
12 Slides • 6 Questions
1
2
Draw
Give me a definition of the term electromagnet?
Break it down if you need:
Electro
Magnet
3
We discussed that opposites attract & like repel.
That magnets attract to metal and other magnets
But did you know that Oxygen is Magnetic!
4
5
Today we are going to create an electromagnet like the one in the video.
Electromagnets combine the properties of Electricity & Magnetism
6
We will be taking notes in our Notebook on page 18
7
Using the pieces of the pendulum, string with circles, and bar magnets recreate the pendulum we used on Tuesday.
First we build a pendulum!
8
Now let's Play & Test with the Electromagnet!
Can you figure out how to create the STRONGEST electromagnet?
How many paperclips can you pick up?
or
How far can you be & still move the pendulum?
9
10
Reorder
Reorder the following so the strongest magnetic field produced will be on the LEFT.
coiled wire with electric current & iron core
coiled wire with electric current
straight wire with electric current
wire with no electric current
11
An object that acts as a magnet when electricity passes through it
Has three parts:
- power source
- copper wire
- Solenoid
iron core & wire wrapped around it
Electromagnet
12
Hotspot
Which part of the electromagnet pictured is the power source?
Click on the spot.
13
A wire coiled around the iron core of an electromagnet.
The more coils around the iron core the stronger the magnetic force produced.
Solenoid
14
Multiple Choice
Which of the following will increase the power of an electromagnet?
disconnect the power source
reverse the flow of electricity
increase the number of wraps around the iron core
remove the iron core
15
Draw
How are electrical force and magnetic force similar and how are they different?
16
Poll
What review game do you want to play to review?
Gimkit
Kahoot
Quizizz
Socrative
17
Live all Weekend Long
18
Great job Today!
See You Monday for the Quiz!
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