# Keywords: Electromagnets (13)

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# Curie Point

In this activity best suited as a demonstration, learners observe that when ... (more)

In this activity best suited as a demonstration, learners observe that when a piece of iron gets too hot, it loses its ability to be magnetized. The temperature at which this occurs is known as the Curie Point. This simple set-up involving a lantern battery and Tinkertoys demonstrates this phenomenon. Adult supervision required, as the wire will get hot in this activity. (less)

Subject:
Science and Technology
Material Type:
Activities and Labs
Collection:
Exploratorium
Provider:
Exploratorium

Play with a bar magnet and coils to learn about Faraday's law. ... (more)

Play with a bar magnet and coils to learn about Faraday's law. Move a bar magnet near one or two coils to make a light bulb glow. View the magnetic field lines. A meter shows the direction and magnitude of the current. View the magnetic field lines or use a meter to show the direction and magnitude of the current. You can also play with electromagnets, generators and transformers! (less)

Subject:
Mathematics and Statistics
Science and Technology
Material Type:
Activities and Labs
Interactive
Simulations
Collection:
PhET Interactive Simulations
Provider:
Author:
Dubson, Michael
Harlow, Danielle
Malley, Chris
Paulson, Archie
Perkins, Kathy
Wieman, Carl

Light a light bulb by waving a magnet. This demonstration of Faraday's ... (more)

Light a light bulb by waving a magnet. This demonstration of Faraday's Law shows you how to reduce your power bill at the expense of your grocery bill. (less)

Subject:
Mathematics and Statistics
Science and Technology
Material Type:
Activities and Labs
Simulations
Collection:
PhET Interactive Simulations
Provider:
Author:
Dubson, Michael
Loeblein, Patricia

Light a light bulb by waving a magnet. This demonstration of Faraday's ... (more)

Light a light bulb by waving a magnet. This demonstration of Faraday's Law shows you how to reduce your power bill at the expense of your grocery bill. (less)

Subject:
Mathematics and Statistics
Science and Technology
Material Type:
Activities and Labs
Simulations
Collection:
PhET Interactive Simulations
Provider:
Author:
Dubson, Michael
Loeblein, Patricia

# Generator

Generate electricity with a bar magnet! Discover the physics behind the phenomena ... (more)

Generate electricity with a bar magnet! Discover the physics behind the phenomena by exploring magnets and how you can use them to make a bulb light. (less)

Subject:
Mathematics and Statistics
Science and Technology
Material Type:
Activities and Labs
Interactive
Simulations
Collection:
PhET Interactive Simulations
Provider:
Author:
Dubson, Michael
Harlow, Danielle
Malley, Chris
Paulson, Archie
Perkins, Kathy
Wieman, Carl

# Investigating How to Create a Stronger Electromagnet

This activity is a guided inquiry investigation where students will propose a ... (more)

This activity is a guided inquiry investigation where students will propose a question on what makes an electromagnet stronger. They will conduct a controlled experiment to answer their own question. (less)

Subject:
Science and Technology
Material Type:
Activities and Labs
Collection:
Pedagogy in Action (SERC)
Provider:
SERC at Carlton College
Author:
Stan Mraz
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# Magnetic Pendulums

In this activity and demonstration about electricity and magnetism, learners observe how ... (more)

In this activity and demonstration about electricity and magnetism, learners observe how the current generated when one copper coil swings through a magnetic field starts a second coil swinging. Learners also explore what happens when they change the polarity of the magnet, reverse the coil, or add a clip lead to short-circuit the coils. Use this activity to illustrate how electricity and magnetism interact. The assembly of the electromagnetic swing device takes about an hour. (less)

Subject:
Science and Technology
Material Type:
Activities and Labs
Collection:
Exploratorium
Provider:
Exploratorium

# Magnetic Suction

In this activity about electricity and magnetism, learners discover how a doorbell ... (more)

In this activity about electricity and magnetism, learners discover how a doorbell works. A coil of wire with current flowing through it forms an electromagnet that acts similar to a bar magnet. The coil will magnetize an iron nail and attract it in a remarkably vigorous way. (less)

Subject:
Science and Technology
Material Type:
Activities and Labs
Collection:
Exploratorium
Provider:
Exploratorium

# Magnets and Electromagnets

Explore the interactions between a compass and bar magnet. Discover how you ... (more)

Explore the interactions between a compass and bar magnet. Discover how you can use a battery and wire to make a magnet! Can you make it a stronger magnet? Can you make the magnetic field reverse? (less)

Subject:
Mathematics and Statistics
Science and Technology
Material Type:
Activities and Labs
Interactive
Simulations
Collection:
PhET Interactive Simulations
Provider:
Author:
Dubson, Michael
Harlow, Danielle
Malley, Chris
Paulson, Archie
Perkins, Kathy
Wieman, Carl

# Polar Opposites

In this activity, learners make a 3-D model of magnetic fields by ... (more)

In this activity, learners make a 3-D model of magnetic fields by inserting a small, strong magnet into a sphere. When learners sprinkle used staples onto the sphere, they'll see how the field works, as the orientation of the staples will change with "latitude." Adult supervision recommended. This resource also includes information about Iceland's unusual volcanoes, which have magnetic fields that seem to defy the Earth. (less)

Subject:
Science and Technology
Material Type:
Activities and Labs
Collection:
Exploratorium
Provider:
Exploratorium
Author:
Paul Doherty

# Simple Spinner

In this activity, learners create a tiny electric, motorized dancer. Learners use ... (more)

In this activity, learners create a tiny electric, motorized dancer. Learners use the interactions of magnetism and electric current to make a wire spin, while displaying the Lorentz Force in action. This lesson guide provides one of many ways to build the spinner and links to other methods. (less)

Subject:
Science and Technology
Material Type:
Activities and Labs
Collection:
SMILE Pathway
Provider:
Exploratorium
Author:
Eric Muller

# Yogurt Cup Speakers

Learners build a simple electromagnet, then use this electromagnet to transform a ... (more)

Learners build a simple electromagnet, then use this electromagnet to transform a yogurt container into a working speaker. They can connect their speaker to a radio and listen as it transmits sound. This activity requires learners have some background knowledge about series circuits and magnets. Resource contains vocabulary definitions and suggestions for assessment (sample rubric included), extensions, and scaling for different levels of learners. (less)

Subject:
Science and Technology
Material Type:
Activities and Labs
Lesson Plans
Collection:
SMILE Pathway
Provider:
University of South Carolina
Author:
Ivanka Todorova
Jed Lyons
Trevor Roebuck

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Subject:
Science and Technology
Material Type:
Assessments
Full Course
Homework and Assignments
Lecture Notes
Syllabi
Collection:
MIT OpenCourseWare
Provider:
M.I.T.
Author:
George Kocur
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