1. 1. Complete Warm-Up for March 29th.
2. Get your journal ready. Add two
pages of guided notes to the next
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available page.
D. Goldsberry
3. Time Limit: 8 minutes

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3. D. Goldsberry 3/28/12

4. S8P5:
Students will explore the
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wave nature of sound
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and electromagnetic
radiation.

5. a. Identify the characteristics of electromagnetic
and mechanical waves.
b. Describe how the behavior of light waves is
manipulated causing reflection, refraction
diffraction, and absorption.
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c. Explain how the human eye sees objects and
colors in terms of wavelengths.
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d. Describe how the behavior of waves is affected
by medium (such as air, water, solids).

6. What happens when a wave
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runs into a different
medium?
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7. 1.Reflection
2.Refraction
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3.Diffraction
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4.Interference
5.Polarization

8.  occurs when a wave strikes an
object and bounces off
 occurs with all types of waves
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 obeys the Law of Reflection – the
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angle of incidence is equal to the
angle of reflection

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11.  When a wave enters a new medium
at an angle, one side of the wave
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changes speed before the other
side, causing the wave to bend.
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14. • amount of bending depends on the
speed of light in both materials
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a) the greater the difference
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between the speeds of light in
the two media, the more the
light is bent

15. b) if light slows down as it passes
into the new medium, the light is
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bent towards the normal (an
imaginary line drawn
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perpendicularly through the
surface of the material)

16. c) if light speeds up as it passes
into the new medium, the light is
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bent away from the normal
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21. amount of refraction depends on
the wavelength of the light:
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 red light is bent the least
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 violet light is bent the most
 white light can be separated into
colors by refraction in a prism

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23.  bending of light around a
barrier
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 occurs with all types of waves
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24. • caused when light waves overlap
each other
a) constructive – interact to build
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up wave
b) destructive – interact to reduce
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wave

25. •occurs in all types of waves
• white light can be separated into
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colors by diffraction and interference
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using a diffraction grating

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27.  Ordinary light has waves that
vibrate in all directions
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28. D. Goldsberry 3/28/12

29.  A polarizing filter acts as though
it has tiny slits in one direction.
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Only some of the light (vibrating in
the same way as the slit) can pass
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through a polarized filter

30. D. Goldsberry 3/28/12

31.  Best example of a polarized filter
is a pair of sunglasses!
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32. D. Goldsberry 3/28/12

33. Review
Activity
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34. In refraction,
light bends
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because _?_
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35. What occurs
when a wave
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strikes an
object and
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bounces off?

36. Which color
bends the least
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when it passes
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into glass?

37. If light passes from air
into a medium that will
slow it down, light will
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bend…
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Towards the normal or
away from the normal?

38. In diffraction
light bends
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because __?__
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39. Which of the
following can be
used to separate
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white light into its
spectrum colors?
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(reflection,
refraction, or
diffraction)

40. When waves overlap
each other, ___
occurs.
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(reflection, refraction
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or interference)