PPT: Light and The Solar System | Year 6 Science IGCSE (Cambridge) - Class 6 PDF Download

 Page 1


Light and the Solar 
System
Page 2


Light and the Solar 
System
Reflected light
Mirror Reflection
Smooth, polished surfaces like mirrors excel at reflecting light. 
When you see your face in a plane (flat) mirror, you're seeing light 
from your face bouncing off the mirror's surface.
Mirror Images
Our brain assumes light travels in straight lines from objects. 
Reflected light creates a second version4the mirror image4of the 
original object.
Page 3


Light and the Solar 
System
Reflected light
Mirror Reflection
Smooth, polished surfaces like mirrors excel at reflecting light. 
When you see your face in a plane (flat) mirror, you're seeing light 
from your face bouncing off the mirror's surface.
Mirror Images
Our brain assumes light travels in straight lines from objects. 
Reflected light creates a second version4the mirror image4of the 
original object.
Reflected light
Natural Reflections
Clear, still water, like a lake, also reflects light effectively. When 
looking at reflections in water, you see the mirror image of objects 
like flamingos standing at the water's edge.
When light reflects off surfaces, it creates mirror images that appear to 
be behind the reflecting surface. These reflections follow precise 
physical laws, allowing us to predict exactly how light will behave when 
it encounters reflective materials.
Page 4


Light and the Solar 
System
Reflected light
Mirror Reflection
Smooth, polished surfaces like mirrors excel at reflecting light. 
When you see your face in a plane (flat) mirror, you're seeing light 
from your face bouncing off the mirror's surface.
Mirror Images
Our brain assumes light travels in straight lines from objects. 
Reflected light creates a second version4the mirror image4of the 
original object.
Reflected light
Natural Reflections
Clear, still water, like a lake, also reflects light effectively. When 
looking at reflections in water, you see the mirror image of objects 
like flamingos standing at the water's edge.
When light reflects off surfaces, it creates mirror images that appear to 
be behind the reflecting surface. These reflections follow precise 
physical laws, allowing us to predict exactly how light will behave when 
it encounters reflective materials.
How does light travel when it reflects?
Light reflection is similar to a ball bouncing against a hard surface. When thrown straight down, it bounces straight back. 
When thrown at an angle, it bounces away at the same angle.
Page 5


Light and the Solar 
System
Reflected light
Mirror Reflection
Smooth, polished surfaces like mirrors excel at reflecting light. 
When you see your face in a plane (flat) mirror, you're seeing light 
from your face bouncing off the mirror's surface.
Mirror Images
Our brain assumes light travels in straight lines from objects. 
Reflected light creates a second version4the mirror image4of the 
original object.
Reflected light
Natural Reflections
Clear, still water, like a lake, also reflects light effectively. When 
looking at reflections in water, you see the mirror image of objects 
like flamingos standing at the water's edge.
When light reflects off surfaces, it creates mirror images that appear to 
be behind the reflecting surface. These reflections follow precise 
physical laws, allowing us to predict exactly how light will behave when 
it encounters reflective materials.
How does light travel when it reflects?
Light reflection is similar to a ball bouncing against a hard surface. When thrown straight down, it bounces straight back. 
When thrown at an angle, it bounces away at the same angle.
How does light travel when it reflects?
Light reflects from a mirror at the same angle as it arrives.
A diagram uses lines and arrows to show how light travels when it reflects.
The ray of light that arrives at the mirror is called the incident ray.
The ray of light that bounces off the mirror is called the reflected ray.
A line drawn at 90° to the mirror9s surface is call ed the normal.
The angle of incidence (between the incident ray and the normal) is equal to the angle of reflection (between the reflected ray and the normal).