| Category | Format | Size |
|---|---|---|
| People's Education Edition Physics for Grade 8, Volume 1 | pptx | 6 MB |
"Refraction of Light" PPT courseware on light phenomena
Description
"Refraction of Light" PPT courseware on light phenomena
When light is incident obliquely from one medium into another medium, the direction of propagation is ____________. This phenomenon is called refraction of light.
Review the methods of exploring reflection laws:
The positional relationship of the three lines and the size relationship of the two angles.
Explore the laws of refraction of light
guess
design experiment
Experimental results
1. The law of refraction of light
Refracted rays and incident rays are separated on both sides of the normal;
Refracted rays, incident rays, and normals are in the same plane;
When light rays are incident from air obliquely into other media, the refracted rays are deflected in the normal direction, and the refraction angle is less than the incident angle.
Want to discuss
If light is incident from water (glass) into air at an angle, will refraction also occur?
In which direction is light rays that hit the air deflected? Draw pictures to represent your ideas.
When light enters the air obliquely from other media, the angle of refraction > the angle of incidence.
2. Refraction phenomenon in life
What happens to chopsticks inserted into water?
The light reflected from the chopsticks refracts at the water surface and enters the eyes
Discussion: How to catch fish
Light is refracted through uneven atmosphere
What did you learn?
1. The phenomenon of refraction of light;
2. Laws of refraction of light;
3． The optical path is reversible in the phenomenon of refraction.
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For more information about the "Light Phenomenon Refraction of Light" PPT courseware, please click the "Light Phenomenon ppt Refraction of Light ppt" tag.
"Exploring the Law of Refraction of Light" Light and Eyes PPT Courseware 2:
"Exploring the Laws of Refraction of Light" Light and Eyes PPT Courseware 2 Learning Objectives 1. Know what the refraction phenomenon of light is 2. Know the laws of refraction of light 3. Know that when light is refracted, the light path is also reversible 4. Through observation and experience There is an illusion caused by refraction, a preliminary understanding...
"Exploring the Law of Refraction of Light" PPT courseware on light and eyes:
"Exploring the Laws of Refraction of Light" Light and Eyes PPT Courseware Teaching Objectives 1. Understand the phenomenon of refraction of light. 2. Understand the laws of refraction of light and be able to use the laws to analyze and explain common refraction phenomena in life. 3. Experience experiments to explore the regular process of refraction of light, and cultivate general...
"Refraction of Light" Light Phenomenon PPT Courseware 13:
"Refraction of Light" Light Phenomenon PPT Courseware 13 Review: 1. The reflection in the water is the ________ image formed by the Tower Bridge. is formed by ________. 2. What is the reflection of light? The phenomenon that light changes direction after hitting the interface of two media and then returns to the original medium. Question...
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Update Time: 2024-08-06
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