"Linear Propagation of Light" Light Phenomenon PPT Courseware 5 Simple campus recruitment activity planning plan summary enterprise and institution recruitment publicity lecture PPT template is a general PPT template for business post competition provided by the manuscript PPT, simple campus recruitment activity planning plan summary enterprise and institution recruitment promotion Lecture PPT template, you can edit and modify the text and pictures in the source file by downloading the source file. If you want more exquisite business PPT templates, you can come to grid resource. Doug resource PPT, massive PPT template slide material download, we only make high-quality PPT templates!
| 文件名 如何下载使用 | 下载次数 | Download Points | 下载地址 |
|---|---|---|---|
| "Linear Propagation of L... | 12925次 | 0.00 | Free Download |
Tips: If you open the template and feel that it is not suitable for all your needs, you can search for related content "Linear Propagation of Light" Light Phenomenon PPT Courseware 5 is enough.
How to use the Windows system template
Directly decompress the file and use it with office or wps
How to use the Mac system template
Directly decompress the file and use it Office or wps can be used
Related reading
For more detailed PPT-related tutorials and font tutorials, you can view: Click to see
How to create a high-quality technological sense PPT? 4 ways to share the bottom of the box
Notice
Do not download in WeChat, Zhihu, QQ, built-in browsers, please use mobile browsers to download! If you are a mobile phone user, please download it on your computer!
1. The manuscript PPT is only for study and reference, please delete it 24 hours after downloading.
2. If the resource involves your legitimate rights and interests, delete it immediately.
3. Contact information: service@daogebangong.com
"Linear Propagation of Light" Light Phenomenon PPT Courseware 5, due to usage restrictions, it is only for personal study and reference use. For commercial use, please go to the relevant official website for authorization.
(Personal non-commercial use refers to the use of this font to complete the display of personal works, including but not limited to the design of personal papers, resumes, etc.)
Related reading
For more detailed PPT-related tutorials and font tutorials, you can view:Please click to see
Authoritative PPT Summary
"Linear Propagation of Light" Light Phenomenon PPT Courseware 5
1. Light source
Objects that can emit light themselves are called light sources
Natural light source Artificial light source
Go to life
1. The following objects must not be considered light sources ( )
A. Sun B. Textbook C. Fireworks D. Beacon light
2. Among light sources such as stars, torches, candlelight fish, and light-emitting diodes, natural light sources include __________, and artificial light sources include _____________.
Experiment 1: How does light propagate in the air?
Spray a large amount of water mist into the air, use a laser pointer to shoot a beam of light in the water mist, and observe the path of light propagation;
Experimental phenomena show that light propagates in straight lines in the air.
Experiment 2: How does light propagate in water?
Add a small amount of milk to the water, use a laser pointer to emit a beam of light in the water, and observe the path of the light propagation;
Experimental phenomena show that light also propagates in straight lines in water.
Experiment 3: How does light propagate in transparent solids?
Use a laser pointer to emit a beam of light in transparent glass and observe the path of light propagation in the glass;
Experimental phenomena show that light also propagates in straight lines in glass.
3. Application of light propagating along straight lines
1. Laser guided excavation
2. Shooting
The bullseye, crosshair, and notch are in a straight line
3. Stand in line - one student in front just blocks all the students behind, and the line will be straight.
4. The formation of shadow
Since light travels in straight lines, shadows are formed behind opaque objects in areas where light does not reach them.
5. The formation of solar eclipse:
When the moon enters between the sun and the earth, part of the sun's light is blocked by the moon, forming a shadow on the earth. People here cannot see the sun, forming a solar eclipse.
Science World:
1. What is a light year?
It is equal to the distance that light travels in one year.
2. Is "light year" a unit of time or a unit of length?
unit of length
1. Which of the sun, moon, candle flame, and TV screen is a light source ( )
A.Sun, moon B.Sun, candle flame
C. The moon, the fluorescent screen D. All four
2. A laser signal is emitted from the ground to the moon, and the signal returned from the moon is received after 2.7 seconds. Then, the distance between the earth and the moon is ( )
A.8.1×108km B.8.1×105km
C.4.05×105km D.4.05×108km
3. When it thunders, people always see the lightning first and then hear the thunder. This is because ( )
A. When it thunders, lightning always comes first and then thunder.
B. Lightning and thunder occur at the same time, but the speed of light is much greater than the speed of sound.
C. Lightning and thunder are transmitted at the same time, but the light stimulation is strong and the human ear is slow to respond.
D. None of the above reasons are correct
4. Which of the following phenomena cannot be explained by the principle that light propagates along a straight line in a uniform medium ( )
A. Reflection in water B. Formation of solar and lunar eclipses
C. Formation of shadow D. Inability to see what is behind opaque objects
Keywords: light phenomenon teaching courseware, linear propagation of light teaching courseware, People's Education Edition eighth grade physics PPT courseware download, eighth grade physics slide courseware download, light phenomenon PPT courseware download, linear propagation of light PPT courseware download, .PPT Format;
For more information about the PPT courseware "Light Phenomena: Linear Propagation of Light", please click on the "Light Phenomena ppt: Linear Propagation of Light" ppt tag.
"Linear Propagation of Light" Light Phenomenon PPT Courseware 8:
"Linear Propagation of Light" Light Phenomenon PPT Courseware 8 Teaching Objectives: 1. Be able to identify light sources and know that light sources can be roughly divided into natural light sources and artificial light sources. 2. Understand the linear propagation of light and be able to list the applications of linear propagation of light in life. 3. Know the speed of light in vacuum..
"Linear Propagation of Light" Light Phenomenon PPT Courseware 7:
"Linear Propagation of Light" Light Phenomenon PPT Courseware 7 Colorful Light Phenomenon 1. What is a light source? 2. How does light propagate? How to express the propagation route of light? 3. What are the applications of light propagation? 4. How fast does light travel? 5. The world of science: light years.....
"Linear Propagation of Light" Light Phenomenon PPT Courseware 6:
"Linear Propagation of Light" Light Phenomenon PPT Courseware 6 1. Light source 1. Light source: An object that can emit light is called a light source. 2. Light sources are divided into two categories: natural light sources and artificial light sources. Natural light sources: stars (such as the sun), fireflies, luminous jellyfish, etc. Artificial light source: electric...