Lesson: Electromagnetic Spectrum and Parts of Waves
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.
|EM spectrum and WAVES worksheet CW.doc Classwork||