1. Color Light and Optics Review

2. Where is there higher energy ?
All the same amount

3. Light is produced when electrons move from
Lab C-1
Light is produced when electrons move from
E1 to E3
E3 to E1
Electrons don’t move to other energy levels

4. How is light produced?

5. Charged the glow in the dark material with each color
Charged the glow in the dark material with each color. Which glowed the brightest and the longest?
RED
Green
Blue
3rd
2nd
1st

6. Effects of Different colored lights.
Red – longer λ, lower f, lower energy
Blue–shortest λ, higher f, higher energy

7. Quantum Theory of Light
Photon:
Packet of energy
(in this case light)
The color of each photon is dependent on __
Its energy (wavelength)

8. Quantum Theory of Light 2 characteristics to consider
Intensity of light:
How many photons per second are produced
The color of each photon
High energy photons have shorter wavelengths

9. How does what you learned support the quantum theory?
Red light intensity does not matter because red photons do not have enough energy to excite e’

10. When combing the red, blue, and green lights – how many colors appeared on the screen?3 5 6 7
None of the above

11. 3. The three additive primary colors of light are:
red, green, and blue.
red, yellow, and blue.
magenta, cyan, and yellow.
orange, green, and violet.
What uses them?

12. 4. The three colors of pigments for the subtractive color process are:
red, green, and blue.
red, yellow, and blue.
magenta, cyan, and yellow.
orange, green, and violet.
What uses them?

13. A. Red + Green
B. Red + Blue
C. Blue + Green
D. All 3 colors make?
YELLOW
MAGENTA
CYAN
WHITE

14. Strength of signals reaching the brain
Strength of signals reaching the brain. Filled boxes - strong signal Empty boxes - no signal.
3 color receptors in the eye
NEXT

15. A = white
B = red
C = yellow
D = Black

16. We see the bike as blue because of blue light is______ by the bike.
REFLECTED

17. Observe the colored Images under different color light

18. If white light passes through a red filter the filter allows the passage of 
Blue
Green
Combination of colors

19. Filters absorb some colors & transmit others as light passes

20. 1. EM spectrum is analyzed by using …
frequency.
wavelength.
energy.
All of the above

21. 2. The order of visible light from highest energy to lowest energy is… ROYGBIV
TRUE
FALSE

22. 3. As the frequency of light waves increases,
the wavelength increases.
the wavelength decreases.
the wavelength stays the same.

23. 4. As the energy of light waves decreases, frequency…
increases.
decreases.
stays the same.

24. If a store clerk mixes yellow pigment and cyan pigment with white paint, it produces:
blue paint.
red paint.
green paint.
violet paint.

25. Convex Lens / Concave Mirror
Images
Magnified
inverted

26. Concave Lens / Convex mirror
Image
Smaller
upright

27. The place where rays of light cross after they have been bent by a converging lens is known as the:
critical angle.
focal point.
optical center.
index of refraction.

28. Which statement describes a diverging lens?
Light is bent toward the focal point.
Light is bent away from the focal point.
Both surfaces are flat.
Both surfaces curve outward.

29. When you look in a convex mirror, the image appears
smaller than it really is.
lighter than it really is.
larger than it really is.
darker than it really is.

30. Which statement about a diverging lens is correct?
It bends light inward and creates either a virtual or a real image.
It bends light inward and only create a real image.
It bends light outward and creates either a virtual or a real image.
It bends light outward and can only create a virtual image.

31. total internal reflection. refraction. absorption.
4. A fiber optic, (or light pipe) traps and transmits light inside its core as pictured in the diagram. The light is trapped because of:
diffraction.
total internal reflection.
refraction.
absorption.

32. 1. A packet of energy is known as …
phosphorous
quark
hertz
photon

33. 2. The color of each photon is dependent on its ….
Wavelength
Amplitude
Intensity
Energy

34. 3. The rate at which energy flows through a given space describes light
resonance.
pitch.
intensity.
interference.

35. The amount of energy in a photon of light is proportional to the
medium through which it travels.
shape of the light wave it creates.
speed of the corresponding light wave.
frequency of the corresponding light wave.

36. If you were sitting in a perfectly dark room with no light, would you be able to see your hands?
No, because you need light to be able to see.
Yes, you can always see your hands.
Yes, after your eyes adjust to the darkness.
None of the above

37. Which angle is the angle of incidence?B C D

38. In the picture below, the person sees the image of the fish in a different location than the actual fish. This happens because:
Examples:

39. Reflection
Specular
Diffuse