Download Outline - Eden High

Grade 10 Academic Science
Unit #3 - Optics
1.
2.
10.1 - Light and the Electromagnetic Spectrum
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Light and Colour
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Activity: D2 - What Is White Light Made Of?
Key Points
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Energy as a Wave:
Define: wave, crest, trough, wavelength,
amplitude, frequency
Relationship between Frequency and Wavelength
v=fxλ
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The Electromagnetic Spectrum
visible spectrum
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The Wave Model of Light
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Additive Colour Theory of Light
White light (Red, Green, Blue)
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Subtractive Colour Theory of Light
Cyan, magenta, and yellow
10.2 - Producing Visible Light
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Luminous vs Non-Luminous Objects
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Sources of Light: Bioluminescence, Incandescent,
Fluorescent, Phosphorescence, Chemiluminescence,
Triboluminescence, Electric Discharge,
Electroluminescence
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Light-Emitting Diode (LED)
3.
10.3 - The Ray Model of Light
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Ray Model of Light
brightness of objects
light and matter: transparent, translucent, opaque
creation of shadows
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Shadows: umbra, penumbra
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Regular vs Diffusion Reflection
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Activity: D10 - Some Properties of Light
examples
4.
11.1 - Mirrors
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Define: Geometric Optics
optical devices
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D13: Plane Mirror Reflection
Key Points
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Images
definition
real vs virtual
4 Characteristics: S.A.L.T.
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The Law of Reflection
Define: normal, incident ray, reflected ray, angle of
incidence, angle of reflection
Applications
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3 types: Plane, Curved - Concave and Convex
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PLANE MIRRORS 4 characteristics
Ray Diagrams - 4 Steps
examples
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CURVED MIRRORS Concave vs Convex
Terminology: focal point, vertex, focal length, real
image. principle axis, center of curvature
Concave (Converging Mirror):
1. Ray Diagrams - 3 rules
2. Finding the Image
3. Examples
4. Applications
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CURVED MIRRORS
Concave
1. Magnification
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2. Formulas M=hi/ho and M=di/do
3. Examples
4. Activity: D15 - Concave Mirrors
Convex
1. Diverging Mirror
2. Ray Diagrams - 3 rules
3. Finding the Image
4. Applications
5.
11.2 - The Refraction of Light
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Refraction (n)
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The Speed of Light (c)
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The Index of Refraction n (index of refraction), c
(speed of light in vacuum) and v (speed of light in
medium)
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Activity: Investigating the Properties of Light
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How Light Refracts
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Snell's Law n1 sinθ1 = n2 sinθ2
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Partial Refraction and Reflection
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Total Internal Reflection
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Dispersion
6.
11.3 - Lenses
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background
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Thin Lens
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Two Types:
Concave (diverging)
1. Convex (magnifying)
2. Define: primary axis, axis of symmetry, focal
point (x 2) (F), focal length (f)
CONCAVE LENS:
1. image characteristics
2. uses
3. rules for ray diagrams
CONVEX LENS:
1. image characteristics
2. uses
3. rules for ray diagrams
4. examples
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Activity: D26 - Identifying the Properties of Images
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Thin Lens Equation 1/f = 1/do + 1/di
7. 12.1 - Human Perception of Light
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Technologies
Optical Illusions
The Human Eye Define: cornea, iris, pupil, lens, cilliary
muscle, retina, focal point, optics nerve, blood vessels
Focusing
Detecting Light
Rods, Cones, Blind Spot
Correcting Vision Problems Using Lenses
Far-sighted, Near-sighted, Astigmatism