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Magnets: A First Look

17 minutes

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Videos are generally available for preview to non-members as short clips. Limited full-length titles are also available. Log In to view the full length title.

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Flat horseshoe magnet. Curved top is red with silver magnetic pole ends. One pole is labeled N.

Introduces the basic principles of magnets. Discusses what they do and do not attract, and shows what poles and magnetic fields are. Explains how a compass works and how to make a magnet. Touches on electromagnets and their many uses. Simple experiments reinforce the information; pauses for viewer discussion.

Media Details

Runtime: 17 minutes

Topic: Science
Subtopic: Electricity and Magnetism
Grade/Interest Level: K - 4
Standards:

Release Year: 2000
Producer/Distributor: AIMS Multimedia
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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.