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\nCalculating Efficiency and Energy Transfers in Devices\n

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\nThis video is a lecture on efficiency where the speaker explains how to calculate the efficiency of a device and identify the energy transfers that take place. The video starts with an introduction to Sankey diagrams that detail all the...\nThis video is a lecture on efficiency where the speaker explains how to calculate the efficiency of a device and identify the energy transfers that take place. The video starts with an introduction to Sankey diagrams that detail all the energy transfers that take place in a process or system. The speaker then explains how to calculate the efficiency of a car's engine and a light bulb, using examples and diagrams to illustrate the concept. The video also covers how to calculate the useful energy output of a fan, given its efficiency and total energy output.\n
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Resource Details

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Curator Rating
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Educator Rating
Not yet Rated
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Media Length
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7:17
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Grade
9th - Higher Ed
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Subjects
Science
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Media Type
Instructional Videos
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Source:
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\nKnowMo Physics\n\n
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Date
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2018
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Language
English
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Audiences
For Teacher Use
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Usage Permissions
Fine Print: Educational Use
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Additional Materials

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\" data-title=\"Get Full Access\" data-container=\"body\" rel=\"popover\" tabindex=\"0\" href=\"/subscription/new\">Video Transcript\n
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Concepts

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energy, diagrams, chemical energy, thermal energy, kinetic energy, electrical energy, light energy
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Additional Tags

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gcse, and, igcse, science, physics, edexcel, sankey, efficiency, lecture video, large square, hand side, fan blades, light bulb, sankey diagram, energy output, energy transfers, wasted form, transfers, stores, cancel, total, represents, identify, device, calculated, calculate, place, process, transferred, move, converted
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Classroom Considerations

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Best For: Explaining a topic
Video is ad-free
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Educator Ratings

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\n\" data-title=\"Get Full Access\" data-container=\"body\" rel=\"popover\" tabindex=\"0\" aria-label=\"Play video: Calculating Efficiency and Energy Transfers in Devices\" href=\"/subscription/new\">\"Calculating\n\n
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