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Power & Efficiency

34 minutes 9 seconds

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Part of the "A 3-D Demonstration" series. Defines electric power and explores in general terms a variety of means by which it is produced, transmitted, and consumed. Discusses energy conservation in relation to power production, transmission, and consumption with a particular focus on the efficiencies and inefficiencies associated with the conversion of electricity to light. Specific modules include Efficiency I: Power Production, Power, Efficiency II: Power Transport, Power Transmission, Power Consumption, Inefficiency I: The Light Bulb, and Inefficiency II: The Fluorescent Bulb. Correlates to all National CTE Organizational Standards (including the provisions of the Perkins Act). Accessibility options on the DVD are: (1) expanded description, (2) English subtitles in a black box, (3) subtitled description.

Media Details

Runtime: 34 minutes 9 seconds

e-= 1.60 x 10-19C elementary charge. Caption: is used to describe this single, smallest possible charge.
Electricity: A 3-D Animated Demonstration
Episode 1
31 minutes 4 seconds
Grade Level: 9 - 12
Sinuous wave falling above and below a center line. Arrow indicating the distance between the center line and the peak of the wave. Caption: The peak voltage is approximately 170 volts
Electricity: A 3-D Animated Demonstration
Episode 2
26 minutes 2 seconds
Grade Level: 10 - 12
Illustration of a measurement device attached to leads which surround a central core that is emitting a moving magnetic field. Caption: As long as the magnetic field moves
Electricity: A 3-D Animated Demonstration
Episode 3
19 minutes 37 seconds
Grade Level: 10 - 12
Illustration of an arm extended and energy cycling through the forearm. Energy continues out through the tips of the fingers. A wire intersects the hand, and an arrow indicates movement to the right. Caption: exerted on the conducting wire.
Electricity: A 3-D Animated Demonstration
Episode 4
17 minutes 46 seconds
Grade Level: 10 - 12
Central sphere with arrows with equidistance arrows moving away from the center. Caption: and the distance between arrows
Electricity: A 3-D Animated Demonstration
Episode 5
20 minutes 46 seconds
Grade Level: 10 - 12
Req=R1+R2+R3+…+Rn Caption: is this sum of the individual resistances
Electricity: A 3-D Animated Demonstration
Episode 6
24 minutes 21 seconds
Grade Level: 10 - 12
Closeup of an incandescent lightbulb. Caption: a change in the wattage of the lightbulb
Electricity: A 3-D Animated Demonstration
Episode 7
34 minutes 9 seconds
Grade Level: 10 - 12
Diagram of a wall outlet. Caption: If the receptacle is itself properly grounded,
Electricity: A 3-D Animated Demonstration
Episode 8
26 minutes 39 seconds
Grade Level: 10 - 12