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

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 :00

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 :00

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. 1 2 3 4 5 5 4 3 2 1 4 3 1 2 5 5 2 1 3 4 :00

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. 1 2 3 4 5 5 4 3 2 1 4 3 1 2 5 5 2 1 3 4 :00