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How much energy does it take for an electron jump from chromium metal? Using a formula, the instructor describes the procedure for determining the wavelength of light needed for a specific metal to eject electrons.
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NGSS:
Adaptable
Concepts
Additional Tags
Instructional Ideas
- Use a graphic organizer to record the formulas with descriptions of the variables and units
Classroom Considerations
- Using the YouTube video requires Internet access
- The explanation behind the formula used here was taught in previous lessons in this series
- The lesson continues a 14-part series
- This video is hosted on YouTube
Pros
- Explains the importance of unit conversions and using consistent units
Cons
- Begins with a complex example requiring unit conversions; it would be beneficial to begin with a simpler example to explain the formula