| Category | Format | Size |
|---|---|---|
| Lu Jiao edition eighth grade physics volume 1 | pptx | 6 MB |
"Reflection of Light" Light Phenomenon PPT Courseware 17
Description
"Reflection of Light" Light Phenomenon PPT Courseware 17
What is light reflection?
When light hits the surface of an object, it is reflected back by the surface of the object. This phenomenon is called reflection of light.
Ask the question: Are there any rules for the reflection of light?
Conjectures and Assumptions:
1. The positional relationship between reflected light, incident light and normal.
2. The relationship between the reflection angle and the incident angle.
Exchange and cooperation:
1. What will happen if the light hits the mirror in the opposite direction of the reflected light?
Thought 1:
When the propagation direction of light is reversed, its propagation path remains unchanged, indicating that the light path is reversible.
2. I also found that...
How does the angle of reflection change with the angle of incidence?
Lesson 2: As the incident angle increases, the reflection angle increases; as the incident angle decreases, the reflection angle decreases;
What are the reflected rays and reflection angle at normal incidence?
Lesson 3: When vertically incident, the reflected ray and incident ray coincide, and the incident angle and reflection angle are both zero.
What did you learn?
1. The law of reflection of light
①The reflected light, incident light and normal are in the same plane;
②The reflected light and incident light are separated on both sides of the normal;
③The reflection angle is equal to the incident angle;
2. Application of light reflection
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For more information about the "Light Phenomenon Reflection of Light" PPT courseware, please click on the "Light Phenomenon PPT Reflection of Light PPT" tab.
"Reflection of Light" PPT courseware download of light phenomena:
"Reflection of Light" PPT courseware download on light phenomena Part 1: Classification practice of knowledge points Knowledge point 1 Reflection phenomenon of light 1. As shown in Figure 4-2-1, we can see objects that do not emit light because the light from the object ______ enters our eyes. Knowledge points...
"Reflection of Light" PPT teaching courseware on light phenomena:
"Reflection of Light" PPT teaching courseware on light phenomena Part 1: Basic knowledge points Knowledge point 1 Reflection phenomenon of light 1. A setting sun spreads across the water, half river and half river red. It is a poem by Bai Juyi. The phenomenon described in the poem belongs to the phenomenon of reflection of light. 2.The following are relevant...
"Reflection of Light" PPT download of light phenomena:
"Reflection of Light" Light Phenomenon PPT Download Part One: New Knowledge Summary 1. Reflection of Light Reflection of light: When light encounters the surface of an object, it changes ________ and returns to the original substance. [Instruction]We can see objects that do not emit light because they are...
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Update Time: 2024-07-28
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