Light Flashcards
(15 cards)
Definition of luminous
Gives of its own light
What direction does light travel
Straight lines
What is reflection
You see things objects because light rays from luminous object bounce of them into our eyes
Examples of opaque material
Card boards
What is the incident ray
A ray of light that hits a surface
What light
Light is a form of radiation it is given luminous object
What happens when light rays hits a surface
Reflected absorbed transmitted through the materials
What is umbra
The dark central part of the object
Inner
How are rainbows formed
They formed when rays of light from sun are reflected in raindrops
Red+ blue+ green=
White
Red+ magenta
Blue
Red+ yellow
Green
What are the range if colours made in the spectrum
Richard of York gave bottle in rain red orange yellow green blue indigo and violet
What is the penumbra?
The lighter, outer area of an object.
Why do you hear someone running down the corridor but only see them when they come past?
Because light travels in straight lines.
