Videos A to Z

  • Electrical Circuits: Electric Potential Difference II

    • 3-5

    Electric potential difference causes electric charges to move from one battery terminal, through the wire, to the other battery terminal.  » more info

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      • PBS Utah
      • UEN-TV
      • EMEDIA
  • Electrical Circuits: Shock

    • 3-5

    If a short circuit occurs, the charge could flow into the shell of the appliance and the appliance could shock someone touching it.  » more info

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  • Electricity: Attraction II

    • 3-5

    If a proton and electron come close, they attract each other.  » more info

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  • Electricity: Electrical discharge as lightning

    • 3-5

    An electrical charge occurs as the opposite charges attract between the bottom of the cloud and the ground below. The lightning bolt we see is an example of electrical discharge.  » more info

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  • Electricity: Static electricity in cloud

    • 3-5

    Inside a large storm cloud, water droplets and other particles are moving around very quickly, creating static electricity.  » more info

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  • Electromagnetism: Electric Motor

    • 3-5
    • 6-8
    • 9-12

    An electric motor consists of a coil of wire, called an armature, which is attached to a shaft that spins between the poles of a magnet. As electric current flows through the coiled wire, the magnet pushes…  » more info

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  • Electromagnetism: Galvanometer

    • 3-5
    • 6-8
    • 9-12

    A galvanometer consists of a coil of wire wrapped around a piece of iron that is connected to a needle. This coil of wire spins between the poles of a magnet. When connected to a circuit, the current…  » more info

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  • Electromagnetism: Generator

    • 3-5
    • 6-8
    • 9-12

    Model of generator powered by water. The water turns the turbine, which spins the crank shaft that is connected to this wheel of magnets. Coils of wire surround the electromagnets. The electromagnets…  » more info

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  • Electromagnetism: Magnetic field around wire

    • 3-5
    • 6-8
    • 9-12

    Depicts lines of magnetic force around a current-carrying wire. Electric current flowing through a wire produces a magnetic field. The lines of magnetic force are in a circular shape around the wire.  » more info

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  • Electromagnetism: Step up transformer

    • 3-5
    • 6-8
    • 9-12

    In a step up transformer a smaller amount of voltage enters the primary coil, and a larger amount of voltage leaves the secondary coil.  » more info

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      • EMEDIA