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Magnets and Electromagnetism

16 minutes 15 seconds

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Students explore the various properties of magnets and the characteristics of magnetic force. Graphics and real-life footage explain how magnets are used in generating electricity. Electromagnets and their many uses are demonstrated as well. Other terminology includes: magnetic poles, magnetic field, electric motor, generator, solenoid, and electromagnetism.

Media Details

Runtime: 16 minutes 15 seconds

Topic: Science
Subtopic: Electricity and Magnetism, Physics
Grade/Interest Level: 5 - 8
Standards:

Release Year: 2008
Producer/Distributor: Visual Learning Systems
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Teacher's Guide

Still image from: All the Answers: Solar System, Light Bulb, Chemical Reactions!

Man sitting outside looks at us as he talks, gesturing with his hand forward as he speaks.

Measurement device placed on a circuit powered by three AA batteries. Device shows 0.05 on the display. Caption: (Adabot) zero point zero five amperes.

Person speaking. Illustration of a battery. Caption: A battery uses chemistry to create electricity.

Illustration of a circuit board with a tubular object bridging two paths. Caption: In this circuit, I'm filtering power.

Rectangular diagram with objects moving clockwise around the perimeter. Caption: Electrons flow through the diode in one direction,

Machine labelled DS1052E Digital Oscilloscope with a wavy line across the screen and complex controls. Caption: We measure frequency in units called hertz.

Person in a workshop holding a power cord with three prongs. Caption: The answer is these three-prong cables are grounded.

Person and a robot in a workshop with a laptop in front of them. Caption: Hertz is how many times something happens per second.

Closeup of a complex circuit board with capacitors and other structures. Caption: But ICs, well -- ICs can have lots of connections.