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Safir Yafi Chowdury
@safirchowdury_positiveskills
·
61 Followers
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Light and its properties: A comprehensive guide for KS3 science students
This guide covers key concepts about light including how it travels, reflection, refraction, and color. It explains fundamental principles of light waves, energy conversion, and optical phenomena using clear explanations and examples relevant for KS3 and KS2 students.
17/05/2023
706
Refraction is the bending of light as it passes between materials of different optical densities.
Key points:
Vocabulary:
Example: A straw in a glass of water appears bent due to refraction of light between air and water.
Refraction explains various optical phenomena like the apparent bending of objects partially submerged in water.
The guide concludes with interactive activities to reinforce key concepts:
These activities help students apply their knowledge and check their understanding of fundamental light concepts covered in KS3 science.
Light is a form of energy that travels in waves at extremely high speeds.
Key points:
Highlight: Light travels much faster than sound.
Example: Solar cells convert light energy to electrical energy, while plants convert it to chemical energy through photosynthesis.
Vocabulary:
The human eye detects light directly from luminous objects or light reflected off non-luminous objects. Understanding how light travels and interacts with materials is key to explaining vision and optical phenomena.
Color is a property of light related to its wavelength.
Key concepts:
Highlight: The color an object appears depends on which wavelengths of light it reflects.
Example: A red apple appears red because it reflects red light and absorbs other colors.
Understanding color helps explain phenomena like rainbows and how we perceive the world around us.
Reflection occurs when light bounces off a surface.
Key concepts:
Definition: Lateral inversion is the reversal of left and right in a mirror image.
Laws of reflection:
Example: Reflective materials like high-visibility strips on cyclists' clothing use reflection to improve safety in low light.
Highlight: A periscope uses two mirrors at 45° angles to reflect light and allow viewing around corners or over obstacles.
13
316
8/9
Light-Physics
Me and my friends made this
4
360
7/8
Physics - Light
Some notes/flashcards on light
28
505
11/9
summary of newton’s law - Physics
summary of newton’s law
11
437
11/9
Physics Topic 6: Waves (MASTER Booklet)
This is a MASTER booklet for Waves. Use this booklet for answering questions, correcting mistakes and understanding your weak spots in Physics. All questions are from past papers , locatable on the AQA website. Mark schemes are also provided.
37
410
7/8
Waves, reflection and refraction
ks3 notes
Average app rating
Pupils love Knowunity
In education app charts in 11 countries
Students have uploaded notes
iOS User
Philip, iOS User
Lena, iOS user
Average app rating
Pupils love Knowunity
In education app charts in 11 countries
Students have uploaded notes
iOS User
Philip, iOS User
Lena, iOS user
Safir Yafi Chowdury
@safirchowdury_positiveskills
·
61 Followers
Follow
Light and its properties: A comprehensive guide for KS3 science students
This guide covers key concepts about light including how it travels, reflection, refraction, and color. It explains fundamental principles of light waves, energy conversion, and optical phenomena using clear explanations and examples relevant for KS3 and KS2 students.
17/05/2023
706
Refraction is the bending of light as it passes between materials of different optical densities.
Key points:
Vocabulary:
Example: A straw in a glass of water appears bent due to refraction of light between air and water.
Refraction explains various optical phenomena like the apparent bending of objects partially submerged in water.
Register
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Join milions of students
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By signing up you accept Terms of Service and Privacy Policy
The guide concludes with interactive activities to reinforce key concepts:
These activities help students apply their knowledge and check their understanding of fundamental light concepts covered in KS3 science.
Register
Access to all documents
Join milions of students
Improve your grades
By signing up you accept Terms of Service and Privacy Policy
Light is a form of energy that travels in waves at extremely high speeds.
Key points:
Highlight: Light travels much faster than sound.
Example: Solar cells convert light energy to electrical energy, while plants convert it to chemical energy through photosynthesis.
Vocabulary:
The human eye detects light directly from luminous objects or light reflected off non-luminous objects. Understanding how light travels and interacts with materials is key to explaining vision and optical phenomena.
Register
Access to all documents
Join milions of students
Improve your grades
By signing up you accept Terms of Service and Privacy Policy
Color is a property of light related to its wavelength.
Key concepts:
Highlight: The color an object appears depends on which wavelengths of light it reflects.
Example: A red apple appears red because it reflects red light and absorbs other colors.
Understanding color helps explain phenomena like rainbows and how we perceive the world around us.
Register
Access to all documents
Join milions of students
Improve your grades
By signing up you accept Terms of Service and Privacy Policy
Reflection occurs when light bounces off a surface.
Key concepts:
Definition: Lateral inversion is the reversal of left and right in a mirror image.
Laws of reflection:
Example: Reflective materials like high-visibility strips on cyclists' clothing use reflection to improve safety in low light.
Highlight: A periscope uses two mirrors at 45° angles to reflect light and allow viewing around corners or over obstacles.
Register
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Physics - Light-Physics
Me and my friends made this
13
316
2
Physics - Physics - Light
Some notes/flashcards on light
4
360
0
Physics - summary of newton’s law - Physics
summary of newton’s law
28
505
1
Physics - Physics Topic 6: Waves (MASTER Booklet)
This is a MASTER booklet for Waves. Use this booklet for answering questions, correcting mistakes and understanding your weak spots in Physics. All questions are from past papers , locatable on the AQA website. Mark schemes are also provided.
11
437
0
Physics - Waves, reflection and refraction
ks3 notes
37
410
2
Average app rating
Pupils love Knowunity
In education app charts in 11 countries
Students have uploaded notes
iOS User
Philip, iOS User
Lena, iOS user
