1. Workbook Activity 18, pages 65-66.
(Waves and Vibrations)

2. All travel the same speed
Page 65, #3: Which type of electromagnetic wave travels fastest: visible light, radio waves, or gamma rays?
Visible light
Radio waves
Gamma rays
All travel the same speed
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3. Page 66, #5: A radio signal is sent to a planet 4 light-years away
Page 66, #5: A radio signal is sent to a planet 4 light-years away. How long after the message is sent will it take to get a response from any intelligent aliens on that planet?
4 years
2 x 4 = 8 years
4 x 4 = 16 years
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4. All the same wavelength. 1 2 3 4 5 5 4 3 2 1 4 3 1 2 5 5 2 1 3 4
Page 66, #8A: Rank the waves in Figure 3 in order of increasing wavelength. (Wave #1 is on the far left, #5 is on the far right.)
All the same wavelength.
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5. Page 66, #8B: Rank the waves in Figure 3 in order of increasing frequency. (Wave #1 is on the far left, #5 is on the far right.)
All the same frequency.
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