Chapter 14-Light Flashcards
What is an Opaque object?
An object that does not look like pass through it
Shadow is formed by…
Absence of light behind an object
The shadow of a shape is not Always identical to the shape give an example of this
If the light rays shine down on the object the shadow shorter than the object
How can the size of the shadow be increased or decreased by where you shine the light
I can be increased by moving light The light source closer to the object I can be decreased by moving the light Source further away from the object
What are non-luminous objects
I’m live in us objects a scene because they reflect light from light sauce
Most objects have a slightly rough surface, this makes light rays scatter and all directions when they strike the surface, so they do not…
Produce reflections in their surfaces
Some objects such as mayors have a very smooth surface what happens when light rays strike Smooth surfaces
They reflect the light ray
Go look at your diagram in your camera roll that shows law of reflection chapter 14 page 83
What is the incident ray and where is it, where is the reflected ray
What happens when a light right it’s a transparent material such as glass of water
Go look In Photos for the angle of reflection incident
If the light ray traveling from a list dance material like air strikes the more dense materials like glass another angle the light ray is…
HBent or reflected
What happens to sunlight when it is shown through a prism at a specific angle?
Screen of spectrum is path stopped for the screen a spectrum of light is produced, This is then reflected back through the raindrop to a surface below the point of dispersion where it is reflected again and passes to the eye of the observer
What are the primary colors of light and together what do they make
Red, Blue and green, and they make light in to white screen.
What is produced When any 2 primary colors Are added together?
Secondary colors
What happens when white light shines into a painted surface?
When white light shines into a painted surface some of the light is absorbed and subtracted from the white light and some of it is reflected and seen by an observer.
What is an example of white light Being shown onto a painted surface?
If white light shines on yellow paint all the colors in the spectrum or absorbed except yellow. The other colors are subtracted from the white light, leaving yellow to be reflected and seen as the observer
