![Page 1: 11.4 The Ray Model of Light. Light Ray A line and arrow representing the direction and straight-line path of light](https://reader036.vdocuments.us/reader036/viewer/2022081420/5697bf731a28abf838c7ee0c/html5/thumbnails/1.jpg)
11.4 The Ray Model of Light
![Page 2: 11.4 The Ray Model of Light. Light Ray A line and arrow representing the direction and straight-line path of light](https://reader036.vdocuments.us/reader036/viewer/2022081420/5697bf731a28abf838c7ee0c/html5/thumbnails/2.jpg)
Light RayA line and arrow representing the
direction and straight-line path of light
![Page 3: 11.4 The Ray Model of Light. Light Ray A line and arrow representing the direction and straight-line path of light](https://reader036.vdocuments.us/reader036/viewer/2022081420/5697bf731a28abf838c7ee0c/html5/thumbnails/3.jpg)
Incident Light Light emitted from a source that strikes an object
Incident Light Ray
![Page 4: 11.4 The Ray Model of Light. Light Ray A line and arrow representing the direction and straight-line path of light](https://reader036.vdocuments.us/reader036/viewer/2022081420/5697bf731a28abf838c7ee0c/html5/thumbnails/4.jpg)
Properties of Light When light strikes matter, it can be…
1. Transmitted – light passes through a substance
2. Reflected – light bounces off an object
3. Absorbed – light is absorbed by object and converted to heat
![Page 5: 11.4 The Ray Model of Light. Light Ray A line and arrow representing the direction and straight-line path of light](https://reader036.vdocuments.us/reader036/viewer/2022081420/5697bf731a28abf838c7ee0c/html5/thumbnails/5.jpg)
Flat/Plane Mirrors Image:
A reproduction of an original object that is produced through the use of light
Mirror A polished surface reflecting an image
![Page 6: 11.4 The Ray Model of Light. Light Ray A line and arrow representing the direction and straight-line path of light](https://reader036.vdocuments.us/reader036/viewer/2022081420/5697bf731a28abf838c7ee0c/html5/thumbnails/6.jpg)
Mirrors
![Page 7: 11.4 The Ray Model of Light. Light Ray A line and arrow representing the direction and straight-line path of light](https://reader036.vdocuments.us/reader036/viewer/2022081420/5697bf731a28abf838c7ee0c/html5/thumbnails/7.jpg)
Terminology of Reflection
![Page 8: 11.4 The Ray Model of Light. Light Ray A line and arrow representing the direction and straight-line path of light](https://reader036.vdocuments.us/reader036/viewer/2022081420/5697bf731a28abf838c7ee0c/html5/thumbnails/8.jpg)
Terminology of Reflection
NORMAL
![Page 9: 11.4 The Ray Model of Light. Light Ray A line and arrow representing the direction and straight-line path of light](https://reader036.vdocuments.us/reader036/viewer/2022081420/5697bf731a28abf838c7ee0c/html5/thumbnails/9.jpg)
Terminology of Reflection
Incident Ray
NORMAL
![Page 10: 11.4 The Ray Model of Light. Light Ray A line and arrow representing the direction and straight-line path of light](https://reader036.vdocuments.us/reader036/viewer/2022081420/5697bf731a28abf838c7ee0c/html5/thumbnails/10.jpg)
Terminology of Reflection
Incident Ray
NORMAL
Angle of incident
![Page 11: 11.4 The Ray Model of Light. Light Ray A line and arrow representing the direction and straight-line path of light](https://reader036.vdocuments.us/reader036/viewer/2022081420/5697bf731a28abf838c7ee0c/html5/thumbnails/11.jpg)
Terminology of Reflection
Incident Ray
NORMAL
Angle of incident
Reflected Ray
![Page 12: 11.4 The Ray Model of Light. Light Ray A line and arrow representing the direction and straight-line path of light](https://reader036.vdocuments.us/reader036/viewer/2022081420/5697bf731a28abf838c7ee0c/html5/thumbnails/12.jpg)
Terminology of Reflection
Incident Ray
NORMAL
Angle of incident
Reflected Ray
Angle of reflection
![Page 13: 11.4 The Ray Model of Light. Light Ray A line and arrow representing the direction and straight-line path of light](https://reader036.vdocuments.us/reader036/viewer/2022081420/5697bf731a28abf838c7ee0c/html5/thumbnails/13.jpg)
11.6 Laws of Reflection:Plane (flat) mirrors
![Page 14: 11.4 The Ray Model of Light. Light Ray A line and arrow representing the direction and straight-line path of light](https://reader036.vdocuments.us/reader036/viewer/2022081420/5697bf731a28abf838c7ee0c/html5/thumbnails/14.jpg)
Matter can be classified as: Transparent
Transmits all or almost all incident light, object can clearly be seen through material
Ex. Clear glass
![Page 15: 11.4 The Ray Model of Light. Light Ray A line and arrow representing the direction and straight-line path of light](https://reader036.vdocuments.us/reader036/viewer/2022081420/5697bf731a28abf838c7ee0c/html5/thumbnails/15.jpg)
Matter can be classified as: Translucent
transmits some incident light but absorbs or reflects the rest, objects are not clearly seen through material
![Page 16: 11.4 The Ray Model of Light. Light Ray A line and arrow representing the direction and straight-line path of light](https://reader036.vdocuments.us/reader036/viewer/2022081420/5697bf731a28abf838c7ee0c/html5/thumbnails/16.jpg)
Matter can be classified as: Opaque
Does not transmit any incident light, objects are not seen through material
![Page 17: 11.4 The Ray Model of Light. Light Ray A line and arrow representing the direction and straight-line path of light](https://reader036.vdocuments.us/reader036/viewer/2022081420/5697bf731a28abf838c7ee0c/html5/thumbnails/17.jpg)
Try this: Classify each of these materials as transparent,
translucent or opaque: A textbook
Frosted glass
A single sheet of tissue paper
A clean sheet of glass
A rock
Apple juice
Sunglasses
![Page 18: 11.4 The Ray Model of Light. Light Ray A line and arrow representing the direction and straight-line path of light](https://reader036.vdocuments.us/reader036/viewer/2022081420/5697bf731a28abf838c7ee0c/html5/thumbnails/18.jpg)
Try this: Classify each of these materials as transparent, translucent
or opaque: A textbook- OPAQUE
Frosted glass- TRANSLUCENT
A single sheet of tissue paper- TRANSLUCENT
A clean sheet of glass- TRANSPARENT
A rock- OPAQUE
Apple juice- TRANSLUCENT
Sunglasses- TRANSPARENT
![Page 19: 11.4 The Ray Model of Light. Light Ray A line and arrow representing the direction and straight-line path of light](https://reader036.vdocuments.us/reader036/viewer/2022081420/5697bf731a28abf838c7ee0c/html5/thumbnails/19.jpg)
From our lab, we learned…
angle of incidence = angle of reflection
The incident ray, reflected ray and the normal all lie in the same plane
![Page 20: 11.4 The Ray Model of Light. Light Ray A line and arrow representing the direction and straight-line path of light](https://reader036.vdocuments.us/reader036/viewer/2022081420/5697bf731a28abf838c7ee0c/html5/thumbnails/20.jpg)
Light Reflecting off Surfaces
Specular Reflection: Reflection of light off a smooth surface (ex.
mirror)
![Page 21: 11.4 The Ray Model of Light. Light Ray A line and arrow representing the direction and straight-line path of light](https://reader036.vdocuments.us/reader036/viewer/2022081420/5697bf731a28abf838c7ee0c/html5/thumbnails/21.jpg)
Light Reflecting off Surfaces
Specular Reflection: Reflection of light off a smooth surface (ex.
mirror)
![Page 22: 11.4 The Ray Model of Light. Light Ray A line and arrow representing the direction and straight-line path of light](https://reader036.vdocuments.us/reader036/viewer/2022081420/5697bf731a28abf838c7ee0c/html5/thumbnails/22.jpg)
Light Reflecting off Surfaces
Diffuse Reflection: Reflection of light off a rough surface (ex. moving
water)
![Page 23: 11.4 The Ray Model of Light. Light Ray A line and arrow representing the direction and straight-line path of light](https://reader036.vdocuments.us/reader036/viewer/2022081420/5697bf731a28abf838c7ee0c/html5/thumbnails/23.jpg)
Light Reflecting off Surfaces
Diffuse Reflection: Reflection of light off a rough surface (ex. moving
water)
![Page 24: 11.4 The Ray Model of Light. Light Ray A line and arrow representing the direction and straight-line path of light](https://reader036.vdocuments.us/reader036/viewer/2022081420/5697bf731a28abf838c7ee0c/html5/thumbnails/24.jpg)
Images in Plant Mirrors
Pg 488- Leonardo da Vinci’s handwriting
![Page 25: 11.4 The Ray Model of Light. Light Ray A line and arrow representing the direction and straight-line path of light](https://reader036.vdocuments.us/reader036/viewer/2022081420/5697bf731a28abf838c7ee0c/html5/thumbnails/25.jpg)
Virtual Images An image formed by light coming from an apparent light
source
Light is not arriving at or coming from the actual image location
![Page 26: 11.4 The Ray Model of Light. Light Ray A line and arrow representing the direction and straight-line path of light](https://reader036.vdocuments.us/reader036/viewer/2022081420/5697bf731a28abf838c7ee0c/html5/thumbnails/26.jpg)
Characteristics of Images in a Plane Mirror
Lateral Inversion: The orientation of an image in a plane mirror that
is backwards and in reverse order
![Page 27: 11.4 The Ray Model of Light. Light Ray A line and arrow representing the direction and straight-line path of light](https://reader036.vdocuments.us/reader036/viewer/2022081420/5697bf731a28abf838c7ee0c/html5/thumbnails/27.jpg)
Reflection Worksheet
Complete the worksheet
Remember that the virtual image must be the same difference from the mirror as the real object
![Page 28: 11.4 The Ray Model of Light. Light Ray A line and arrow representing the direction and straight-line path of light](https://reader036.vdocuments.us/reader036/viewer/2022081420/5697bf731a28abf838c7ee0c/html5/thumbnails/28.jpg)
How do we see the image?
![Page 29: 11.4 The Ray Model of Light. Light Ray A line and arrow representing the direction and straight-line path of light](https://reader036.vdocuments.us/reader036/viewer/2022081420/5697bf731a28abf838c7ee0c/html5/thumbnails/29.jpg)
![Page 30: 11.4 The Ray Model of Light. Light Ray A line and arrow representing the direction and straight-line path of light](https://reader036.vdocuments.us/reader036/viewer/2022081420/5697bf731a28abf838c7ee0c/html5/thumbnails/30.jpg)
![Page 31: 11.4 The Ray Model of Light. Light Ray A line and arrow representing the direction and straight-line path of light](https://reader036.vdocuments.us/reader036/viewer/2022081420/5697bf731a28abf838c7ee0c/html5/thumbnails/31.jpg)
![Page 32: 11.4 The Ray Model of Light. Light Ray A line and arrow representing the direction and straight-line path of light](https://reader036.vdocuments.us/reader036/viewer/2022081420/5697bf731a28abf838c7ee0c/html5/thumbnails/32.jpg)
Properties of an Image
Use the acronym SALT
![Page 33: 11.4 The Ray Model of Light. Light Ray A line and arrow representing the direction and straight-line path of light](https://reader036.vdocuments.us/reader036/viewer/2022081420/5697bf731a28abf838c7ee0c/html5/thumbnails/33.jpg)
Sample Question
![Page 34: 11.4 The Ray Model of Light. Light Ray A line and arrow representing the direction and straight-line path of light](https://reader036.vdocuments.us/reader036/viewer/2022081420/5697bf731a28abf838c7ee0c/html5/thumbnails/34.jpg)
Sample Question
![Page 35: 11.4 The Ray Model of Light. Light Ray A line and arrow representing the direction and straight-line path of light](https://reader036.vdocuments.us/reader036/viewer/2022081420/5697bf731a28abf838c7ee0c/html5/thumbnails/35.jpg)
Sample Question
S- same size
A- upright
L- 2 cm from mirror
T- virtual