Lesson: Electromagnetic Spectrum and Parts of Waves

David Kujawski Bird Middle East Walpole, MA
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Lesson Objective

YWBAT: 1) Identify the parts of transverse waves 2) Explain the relationship between wavelength and wave frequency 3) Apply your understanding of frequency to explain the organization of the EM Spectrum

Lesson Plan

This lesson can be used in conjunction with the EM Spectrum Webquest that I have on BL.

1) DO NOW: Ask students what they already know about waves.  Share responses with class.  (4 minutes)

2) Instruct students to take notes on parts of wave. (6-10 minutes)

3) Show Brainpop video on waves

4) Have students define frequency as the number of waves that pass a certain point in one second.

5) Have students draw a high frequency wave and then a low frequency wave on the bottom of worksheet.  Circulate to make sure that they understand that shorter wavelengths=higher freqency and longer wavelengths=low frequency. 

6) Model frequency by having students line up 2 feet apart and see how many can pass a point in a certain amount of time.  Then have students stand 5 feet apart and have them count how many people pass a point in a certain time.  Discuss why more students were able to pass when they only 2 feet apart compared to 5 feet.  Relate this to energy, wavelength and frequency.

7) Have students complete the visible light activity on the back of page one on worksheet, review as class.

7a) Optional: Show Brainpop video on color.

8) Have students complete the second worksheet on EM Spectrum, review.

9) As class discuss how the EM spectrum is relevent to their lives.

Lesson Resources

EM spectrum and WAVES worksheet CW.doc   Classwork


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