Keywords: Magnetic Field (67)

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Ampere's Law
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The lesson begins with a demonstration introducing students to the force between ... More

The lesson begins with a demonstration introducing students to the force between two current carrying loops, comparing the attraction and repulsion between the loops to that between two magnets. After formal lecture on Ampere's law, students begin to use the concepts to calculate the magnetic field around a loop. This is applied to determine the magnetic field of a toroid, imagining a toroid as a looped solenoid. Less

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Subject:
Mathematics and Statistics
Science and Technology
Material Type:
Activities and Labs
Instructional Material
Lesson Plans
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Eric Appelt
Eric Appelt (Primary Author)
TeachEngineering.org
VU Bioengineering RET Program, School of Engineering,
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Attraction and Repulsion: The Magic of Magnets, Fall 2005
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This Freshman Advising Seminar surveys the many applications of magnets and magnetism. ... More

This Freshman Advising Seminar surveys the many applications of magnets and magnetism. To the Chinese and Greeks of ancient times, the attractive and repulsive forces between magnets must have seemed magical indeed. Through the ages, miraculous curative powers have been attributed to magnets, and magnets have been used by illusionists to produce "magical" effects. Magnets guided ships in the Age of Exploration and generated the electrical industry in the 19th century. Today they store information and entertainment on disks and tapes, and produce sound in speakers, images on TV screens, rotation in motors, and levitation in high-speed trains. Students visit various MIT projects related to magnets (including superconducting electromagnets) and read about and discuss the history, legends, pseudoscience, science, and technology of types of magnets, including applications in medicine. Several short written reports and at least one oral presentation will be required of each participant. Less

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Provider:
M.I.T.
Provider Set:
MIT OpenCourseWare
Author:
Livingston, James
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Biot-Savart Law
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This lesson begins with a demonstration prompting students to consider how current ... More

This lesson begins with a demonstration prompting students to consider how current generates a magnetic field and the direction of the field that is generated. Through formal lecture, students learn Biot-Savart's law in order to calculate, most simply, the magnetic field produced in the center of a circular current carrying loop. For applications, students find it is necessary to integrate the field produced over all small segments in an actual current carrying wire. Less

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Subject:
Mathematics and Statistics
Science and Technology
Material Type:
Activities and Labs
Instructional Material
Lesson Plans
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Eric Appelt
Eric Appelt (Primary Author)
TeachEngineering.org
VU Bioengineering RET Program, School of Engineering,
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Both Fields at Once?!
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This lesson discusses the result of a charge being subject to both ... More

This lesson discusses the result of a charge being subject to both electric and magnetic fields at the same time. It covers the Hall effect, velocity selector, and the charge to mass ratio. Given several sample problems, students learn to calculate the Hall Voltage dependent upon the width of the plate, the drift velocity, and the strength of the magnetic field. Then students learn to calculate the velocity selector, represented by the ratio of the magnitude of the fields assuming the strength of each field is known. Finally, students proceed through a series of calculations to arrive at the charge to mass ratio. A homework set is included as an evaluation of student progress. Less

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Subject:
Mathematics and Statistics
Science and Technology
Material Type:
Activities and Labs
Instructional Material
Lesson Plans
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Eric Appelt
Eric Appelt (Primary Author)
TeachEngineering.org
VU Bioengineering RET Program, School of Engineering,
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Build Your Own Speaker
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In this activity, learners use simple supplies to build a speaker. After ... More

In this activity, learners use simple supplies to build a speaker. After they construct the speaker with adult assistance, learners attach it to a low power radio and test it out. The resource guide includes questions for learners to answer that will help them examine the speaker device and think about how it works. Learners are also encouraged to modify their design and take apart a broken radio to search for the electromagnet coil and permanent magnet inside. Use this activity to introduce learners to how speakers work as well as electromagnetism and sound. Less

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Material Type:
Activities and Labs
Instructional Material
Provider:
Science and Math Informal Learning Educators (SMILE)
Provider Set:
SMILE Pathway: Science and Math Activities in One Search
Author:
National Museum of American History
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Building an Electromagnet
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Student teams investigate the properties of electromagnets. They create their own small ... More

Student teams investigate the properties of electromagnets. They create their own small electromagnet and experiment with ways to change its strength to pick up more paper clips. Students learn about ways that engineers use electromagnets in everyday applications. Less

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Subject:
Mathematics and Statistics
Science and Technology
Material Type:
Activities and Labs
Lesson Plans
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Abigail Watrous
Denise Carlson
Joe Friedrichsen
Malinda Schaefer Zarske
Xochitl Zamora Thompson
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Circles of Magnetism I
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In this activity related to magnetism and electricity, learners create a magnetic ... More

In this activity related to magnetism and electricity, learners create a magnetic field that's stronger than the Earth's magnetic field. Learners use electric currents that are stronger than the field of the Earth to move a compass needle. The assembly is made using a lantern battery, heavy wire, a Tinkertoy㢠set, and poster board and utilizes 4-6 small compasses and 2 electrical lead wires. Less

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Subject:
Science and Technology
Material Type:
Activities and Labs
Instructional Material
Lesson Plans
Provider:
Exploratorium
Science and Math Informal Learning Educators (SMILE)
Provider Set:
Exploratorium
SMILE Pathway: Science and Math Activities in One Search
Author:
California Department of Education
National Science Foundation
NEC Foundation of America
The Exploratorium
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Circles of Magnetism IV
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In this activity related to magnetism and electricity, learners observe as two ... More

In this activity related to magnetism and electricity, learners observe as two parallel, current-carrying wires exert forces on each other. Learners will discover that these forces push the wires apart (if both currents flow in opposite directions) or pull them together (if both currents flow in the same direction). Less

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Subject:
Science and Technology
Material Type:
Activities and Labs
Instructional Material
Lesson Plans
Provider:
Exploratorium
Science and Math Informal Learning Educators (SMILE)
Provider Set:
Exploratorium
SMILE Pathway: Science and Math Activities in One Search
Author:
California Department of Education
National Science Foundation
NEC Foundation of America
The Exploratorium
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Circuits and Magnetic Fields
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Students use the same method as in the activity from lesson 2 ... More

Students use the same method as in the activity from lesson 2 of this unit to explore the magnetism due to electric current instead of a permanent magnet. Students use a compass and circuit to trace the magnetic field lines induced by the electric current moving through the wire. Students develop an understanding of the effect of the electrical current on the compass needle through the induced magnetic field and understand the complexity of a three dimensional field system. Less

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Material Type:
Activities and Labs
Instructional Material
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Justin Montenegro (Author), Glencliff High School, Nashville
TeachEngineering.org
VU Bioengineering RET Program,
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Clean Up This Mess
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Students are challenged to design a method for separating steel from aluminum ... More

Students are challenged to design a method for separating steel from aluminum based on magnetic properties as is frequently done in recycling operations. To complicate the challenge, the magnet used to separate the steel must be able to be switched off to allow for the recollection of the steel. Students must ultimately design, test, and present an effective electromagnet. Less

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Material Type:
Instructional Material
Unit of Study
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Justin Montenegro , Glencliff High School, Nashville
TeachEngineering.org
VU Bioengineering RET Program,
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Create a Compass
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In this activity, learners use simple materials to build their own compass. ... More

In this activity, learners use simple materials to build their own compass. This resource contains information about compasses as well as suggestions on how learners can try out their home-made compasses in their lives. Less

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Material Type:
Activities and Labs
Instructional Material
Provider:
Science and Math Informal Learning Educators (SMILE)
Provider Set:
SMILE Pathway: Science and Math Activities in One Search
Author:
American Museum of Natural History
Less
Creating an Electromagnet
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Student teams investigate the properties of electromagnets. They create their own small ... More

Student teams investigate the properties of electromagnets. They create their own small electromagnet and experiment with ways to change its strength to pick up more paper clips. Students learn about ways that engineers use electromagnets in everyday applications. Less

More
Material Type:
Activities and Labs
Instructional Material
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Abigail Watrous
Denise Carlson
Integrated Teaching and Learning Program,
Joe Friedrichsen
Malinda Schaefer Zarske
TeachEngineering.org
Xochitl Zamora Thompson
Less
Dancing Compasses
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Learners use compasses to detect the magnetic field created by current moving ... More

Learners use compasses to detect the magnetic field created by current moving through a wire. This is one of four activities learners can complete related to PhysicsQuest 2008. Each activity gives a clue to solve a puzzle in the accompanying comic book, "Nikola Tesla and the Electric Fair." Less

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Subject:
Science and Technology
Material Type:
Activities and Labs
Instructional Material
Provider:
American Physical Society
Science and Math Informal Learning Educators (SMILE)
Provider Set:
SMILE Pathway
SMILE Pathway: Science and Math Activities in One Search
Author:
American Physical Society
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Drawing Magnetic Fields
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Students use a compass and a permanent magnet to trace the magnetic ... More

Students use a compass and a permanent magnet to trace the magnetic field lines produced by the magnet. By positioning the compass in enough spots around the magnet, the overall magnet field will be evident from the collection of arrows representing the direction of the compass needle. In activities 3 and 4 of this unit, students will use this information to design a way to solve the grand challenge of separating metal for a recycling company. Less

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Material Type:
Activities and Labs
Instructional Material
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Justin Montenegro (Author), Glencliff High School, Nashville
TeachEngineering.org
VU Bioengineering RET Program,
Less
Eddy Currents
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In this activity related to magnetism and electricity, learners discover that a ... More

In this activity related to magnetism and electricity, learners discover that a magnet falls more slowly through a metallic tube than it does through a nonmetallic tube. Use this activity to illustrate how eddy currents in an electrical conductor create a magnetic field that exerts an opposing force on the falling magnet, which makes it fall at a slower rate. This activity guide also includes demonstration instructions involving two thick, flat pieces of aluminum to illustrate the same principle. Less

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Subject:
Science and Technology
Material Type:
Activities and Labs
Instructional Material
Simulations
Provider:
Exploratorium
Science and Math Informal Learning Educators (SMILE)
Provider Set:
Exploratorium
SMILE Pathway: Science and Math Activities in One Search
Author:
California Department of Education
Don Rathjen
National Science Foundation
NEC Foundation of America
The Exploratorium
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Electricity and Magnetic Fields
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The grand challenge for this legacy cycle unit is for students to ... More

The grand challenge for this legacy cycle unit is for students to design a way to help a recycler separate aluminum from steel scrap metal. In previous lessons, they have looked at how magnetism might be utilized. In this lesson, students think about how they might use magnets and how they might confront the problem of turning the magnetic field off. Through the accompanying activity students explore the nature of an electrically induced magnetic field and its applicability to the needed magnet. Less

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Material Type:
Instructional Material
Lesson Plans
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Justin Montenegro (Author), Glencliff High School, Nashville
TeachEngineering.org
VU Bioengineering RET Program,
Less
Electromagnet
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In this activity, learners build an electromagnet using a nail, a cork, ... More

In this activity, learners build an electromagnet using a nail, a cork, a battery, and electrical wire. Use this activity to demonstrate how electric currents produce magnet fields. Less

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Material Type:
Activities and Labs
Instructional Material
Lesson Plans
Provider:
Science and Math Informal Learning Educators (SMILE)
Provider Set:
SMILE Pathway: Science and Math Activities in One Search
Author:
Community Science Workshop Network
Mission Science Workshop
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Electromagnets
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In this activity, the students will complete the grand challenge and design ... More

In this activity, the students will complete the grand challenge and design an electromagnet to separate steel from aluminum for the recycler. In order to do this, students compare the induced magnetic field of an electric current with the magnetic field of a permanent magnet and must make the former look like the latter. They discover that looping the current produces the desired effect and find ways to further strengthen the magnetic field. Less

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Material Type:
Instructional Material
Lesson Plans
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Justin Montenegro (Author), Glencliff High School, Nashville
TeachEngineering.org
VU Bioengineering RET Program,
Less
Essentials of Geophysics, Fall 2004
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This course is designed to be a survey of the various subdisciplines ... More

This course is designed to be a survey of the various subdisciplines of geophysics (geodesy, gravity, geomagnetism, seismology, and geodynamics) and how they might relate to or be relevant for other planets. No prior background in Earth sciences is assumed, but students should be comfortable with vector calculus, classical mechanics, and potential field theory. Less

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Subject:
Science and Technology
Material Type:
Full Course
Homework and Assignments
Lecture Notes
Syllabi
Other
Provider:
M.I.T.
Provider Set:
MIT OpenCourseWare
Author:
Hilst, Robert Van Der
Less
Faraday's Law (AR)
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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

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Subject:
Mathematics and Statistics
Science and Technology
Material Type:
Activities and Labs
Simulations
Provider:
University of Colorado Boulder
Provider Set:
PhET Interactive Simulations
Author:
Dubson, Michael
Loeblein, Patricia
Less
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.)310.1( tcejbus ngised enotspac eht dna )150.1 ,140.1 ,130.1( stcejbus ngised aera ... More

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