Chapter 3: Waves
Tuesday, November 19
Bell Work #46
1) a system of billions of stars, gas, and dust
3) Earth - solar system - Milky Way galaxy - galaxies - universe
2) Milky Way galaxy
4) Spiral with sun 2/3 away from center on an arm
5) Unit that measures distance light travels in one year
Classwork:
3
*A thermograph detects heat from infrared waves.
Study Guide Answers
Study Guide Answers Continued
Study Guide Answers Continued
Study Guide Answers Continued
7. Draw 2 transverse waves each with at least 2 wavelengths. Draw one wavelength with high frequency and one with low frequency. Label the crest, trough, wavelength, amplitude.
Study Guide Answers Continued
8. Give at least 3 examples of transverse waves.
Light, S-waves, rope
Study Guide Continued
13. What type of instrument uses an objective lens and an eyepiece lens? Microscope
Study Guide Answers Continued
15. What is absorption? Give an everyday example of how absorption is used with sound.
It does not transmit, reflect, or refract waves (they are taken in)
16. How does the medium affect wave speed?
Study Guide Answers Continued
Study Guide Answers Continued
Textbook Answers
Page: 302 Connect It
Textbook Answers
Page: 302 Connect It
Textbook Answers
Page: 304 Figure 2
There are 3 complete waves of each type
Textbook answers
Page 305 literacy connection and measuring waves
Textbook answers
Page 305 literacy connection and measuring waves
There are 2 ½ waves
Textbook answers
Page 306 Wave Energy; Figure 4
Textbook answers
Page 306 Wave Energy; Figure 4
The first wave has 4 waves and the second has 2
Textbook answers
Page 307 Identify the number of waves in 1.
Both sets have 4 waves
Textbook answers
Page 308 Math Tool Box
Inspecting the Spectrum
They overlap
Red
Violet
It is below visual light
It is above visual light
It kills things such as cells
Inspecting the Spectrum Continued
Inspecting the Spectrum Continued
Violet
Red
Violet
Red
They decrease from Red to violet
Inspecting the Spectrum Continued
Homework:
28