Light contributors
name one light contributor and one they "discovered" or "found"
answers vary
how many basic principles of light are there?
there are 7 basic principles
what is the middle doted line in a ray diagram? and what is its label?
the middle dotted line is the Normal or N
what is an "image"
reproduction derived from light
how does light "transmit"
passing through a transparent object
what did Empedocles believed about light?
he believed that the eye was made of fire and streamed out which is how we saw things
name 2 basic light principles
answers vary
what do you lable the ray that comes from the source and what is its reflected ray called?
its called "incident ray" or ir and the reflected ray is called the reflected ray or rr
what is an virtual image
a virtual image is a reproduction of light where no light actually passes through and only exist when rays are traced back to percieved location of source
is you move an object closer to a light source is the shadow produced bigger or smaller?
who made the "law of reflection"
Euclid did
light is the _______ part of the EMS
visible
how is the angle of a light ray measured from?
it is measured from the normal or N
what is a real image
a real image is when light rays actually pass through an image really exists in space weather you are looking or not
how does light "interact" with a translucent material and give an example of a translucent material
the material will allow some light to pass through but not all light
a frosted widow is an example
What major discovery did newton make with white light
newton "discovered" that when shining white light through a prism the white light will separate into the colors pf the rainbow and concluded that whit light was made up of all colors
light is a form of what?
light is a form of energy
where does the incident ray come from?
the source of the light
what is an mirror reflection in terms of real or virtual image
virtual image
how does light interact with a opaque object?
it dosent pass through and will absorb most of the light
who came up with the first reasonable accurate measurement of the speed of light? and who refined it
Ole Romer came up with the first reasonable measurement and Michelson refined it to 3 x 10^8 m/s
name 3-4 physical traits of light (travels in?, physically emitted?)
light travels in straight lines
light can be reflected
light can be refracted
light is emitted equally in all directions
give an example of a proper ray diagram
vary
why does the reflected image in a mirror appear "flipped"?
because our brain is used to seeing what we normally see and when we look in a mirror we are seeing ourselves flipped because that what the mirror is reflecting back to our eyes its like crawing into the mirror and looking back at ourself
give an example of an transparent, translucent, and opaque abject and explain which is best for insulating
opaque as it covers the most and traps most of the light inside and since light is a form of energy it will insulate better