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Flash Cards (Grd. 10) > 1st Term - Science (Term Test); Optics > Flashcards

1st Term - Science (Term Test); Optics Flashcards

1
Q

What branch of science is optics a sub-branch of?

A

Physics

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2
Q

What is the study of optics

A

nature and interaction of light

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3
Q

Explain wave-particle duality

A

When light can be both a wave & particle

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4
Q

Give example of when light can be a wave and particle

A

Wave: EM Waves
Particle: Photons (through Quanta)

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5
Q

What is Intensity?

A

power of light

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6
Q

What is Photometry

A

the study of brightness of light

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7
Q

What is Brightness

A

qualitative, visual perception

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8
Q

Complete the statement:
Amplitude is directly proportional to ___

A

brightness
Ex:
1. shorter amp = dim light
2. higher amp = brighter light

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9
Q

What is luminous flux

A

Amount of light from source (scattered)

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10
Q

What is luminous Intensity

A

Amount of light from source in a certain direction

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11
Q

What is Illuminance?

A

Amount of light reflected

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12
Q

What is Luminance

A

Amount of light perceived

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13
Q

In colors, what color/s are absorbed id the object is blue?

A

Everything but blue

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14
Q

Complete the statement:
Colors perceived = ___

A

light reflected

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15
Q

Complete the analogy:
White = reflects all
Black = ?

A

Absorbs all

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16
Q

The 2 types of color mixing are?

A

Additive Color Mixing & Subtractive Color Mixing

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17
Q

What is the difference between additive and subtractive color mixing?

A

Additive color mixing - lights
Subtractive color mixing - pigments

18
Q

What are the primary colors in additive color mixing? And what color does it make when you combine all of them together?

A

RGB (Red, Green, Blue) & creates white

19
Q

What are the primary colors in subtractive color mixing? And what color does it make when you combine all of them together?

A

CYMK (Cyan, Yellow, Magenta, Black) & created black

20
Q

What are the 2 cells found in the retina that distinguishes color?

A

Rods & Cones

21
Q

Which cells can distinguish colors? Which cannot?

A

Rods cannot distinguish, Cones can

22
Q

What are the colors that cones can identify?

A

RGB

23
Q

What are the 4 interactions of light?

A

Reflection, Refraction, Absorption, and Dispersion

24
Q

What is reflection

A

bouncing back of light off a reflective surface

25
Q

2 kinds of reflection

A

Specular & Diffuse

26
Q

What are the 2 laws of reflection?

A
  1. Angle of incidence = angle of reflection
  2. Incident ray, reflected ray, and normal all lie in the same plane
27
Q

What is the difference between a plane and spherical mirror?

A

A plane mirror has a flat surface, while a spherical mirror is curved/sphere

28
Q

What are the 2 types of spherical mirrors?

A

Concave & Convex

29
Q

What is the shape of each spherical mirror?

A

Concave - curved inwards the direction of IR
Convex - bulges outward the IR

30
Q

What is the difference between Real & Virtual images in reflection?

A

Real - converge, inverted, projected on a screen
Virtual - diverge (appears formed behind the mirror), upright, appear on mirror or lens

31
Q

How would you describe the image of a plane mirror?

A

Virtual, upright, same size, same distance, & laterally reversed

32
Q

What is the center of curvature?

A

center from the sphere

33
Q

What is the middle of the mirror calles?

A

Vertex

34
Q

What is the radius of curvature?

A

Distance of the Vertex to the Center of Curvature (radius)

35
Q

What is the optical axis?

A

A line that intercepts the CoC, V and F

36
Q

What do you call the width of mirror?

A

Aperture

37
Q

What is the principal focus?

A

Concave - where rays meet
Convex - where rays seem to meet

38
Q

What is focal length?

A

distance from focus and center of curvature (1/2 of radius of curvature)

39
Q

Ray Diagram Rules: What is Case 1?

A

If the IR is parallel to the optical axis, then the RR passes through the foucus

40
Q

Ray Diagram Rules: What is Case 2?

A

If the IR passes through the center of curvature, RR reflects back through C

41
Q

Ray Diagram Rules: What is Case 3?

A

If the IR passes through the focus, then the RR is parallel to the optical axis

Flash Cards (Grd. 10) (1 decks)

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