Magnetic Field Maps

Single Bar Magnet

Single Bar Magnet

Two bar magnets with N/S lined up with a small gap

Two bar magnets with N/S lined up with a small gap

Two bar magnets with North poles facing each other with a small gap

Two bar magnets with North poles facing each other with a small gap

Two bar magnets side by side with N/S poles next to each other

Two bar magnets side by side with N/S poles next to each other

Two bar magnets side by side with like poles parallel

Two bar magnets side by side with like poles parallel

Interested in more magnetic field maps?  Check this out.

 

 

 

 

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Posted in Electricity and Magnetism | 1 Comment

Homework for the Week of May 6

**Study for your Electro-Mag Quest!

Quest dates:

Block I: next Monday, May 13

Block II: next Tuesday, May 14

Block III: next Monday, May 13

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For fun!

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Homework for the Week of April 29

1)  Read “Animal Magnetism”

2)  Complete HW#32: Animal Arithmetic

Due date:

Block I: Wednesday, May 1

Block II: Friday, May 3

Block III: Thursday, May 2

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3)  Complete Electro-Mag Quest Study guide

Due date:

Block I: next Monday, May 6

Block II: next Tuesday, May 7

Block III: next Monday, May 7

Yes…it’s a QUEST!  Not a journey…. but something between a quiz and a test.  **Btw, 8th graders… I know your 8th grade project night is on Tuesday night.  Don’t sweat it.  Just make sure you understand the main concepts, and you should be fine.  It won’t be a doozy like that Human Body test.  I promise.

QUEST dates:

Block I: Monday, May 13

Block II: Tuesday, May 14

Block III: Monday, May 13

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Musical notes:

Jón “Jónsi” Þór Birgisson is the guitarist and vocalist for the Icelandic band, Sigur Rós.  This song is from his solo album:


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Visualizing circuits

Here’s a video that shows how electrons move in a circuit (scroll about halfway through the video)  It shows the movement correctly from the negative end of a battery towards the positive end, however, remember that when we draw the path of the electric current, we actually draw it from positive to negative (We have Ben Franklin to blame for that confusion!).

And this is just silly:

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Homework for the Week of April 22

1) Read “Electric Circuits”

2)  Complete HW#30: Electric Feel

Due date:

Block I: Wednesday, April 24

Block II: Friday, April 26

Block III: Thursday, April 25

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3)  Read “Magnets”

4)  Complete HW#31: The Magnetic Fields

Due date:

Block I: next Monday, April 29

Block II: next Tuesday, April 30

Block III: next Monday, April 29

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Musical notes:

“Electric Feel” is by MGMT, an American psychedelic-rock-electronic band based in Brooklyn, New York.  The band is made up two members, Ben Goldwasser and Andrew VanWyngarden, who met while attending Wesleyan University.  The song is from their debut album, Oracular Spectacular.

Here’s the music video:

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The Magnetic Fields is an indie pop band founded and led by Stephin Merrit.  His bandmate and friend, Claudia Gonson, helped to start the band in 1989.  Their songs are known for their catchiness, but also off-beat humor, bitterness, and irony.

Here’s one of my favorites, “Absolutely Cuckoo,” as a soundtrack for a toy monster and robot love story:

 

 

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Lightning!

Here are some great animations and images to show you how lighting forms.

In this animation, you can see the stepped ladders and streamers. When they meet, the lightning strikes!

Here you can see where the light begins and how it travels upwards towards the clouds

Now let's watch the action!

Posted in Electricity and Magnetism | 4 Comments

Static Electricity

A simple animation to demonstrate what happens with static electricity. It will download to your computer.

And here is a really silly one…but it shows how charges can be picked up when you (or John Travolta) rub your socks on a carpet, and how there is an electric discharge when he gets near the metal doorknob.

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