Science - Chapter 4 Flashcards
the intensity of light
brightness
the amount of light being seen
brightness
the closer to the source of the light the _______________ the intensity of degree of brightness
greater
degree of brightness
intensity
the greater the distance the object is from the source of the light, the ____________ the intensity
lesser
_____________is made up of all colors of light mixed together
white light
if white light is passed through a ______________, the can be separated into light of ______________ _______________
prism, different colors
name the colors of the rainbow
red, orange, yellow, green, blue, indigo, violet
for an object to be visible it must either _____________________ or ______________
give off it own light or reflect light
name some examples of visible light
sun, candle flame, flashlight
name some examples of objects that reflect light
moon, and many other objects around us
the ability to make something move, happen or change
energy
the different ________ of light are revealed when white light is passed through a __________ and separated into the different colors of the rainbow called the ______________
colors, prism, spectrum
colors are related to the different amounts of ________ in white light
energy
each color represents a different amount of __________
energy
when light bounces back from a surface it is ___________________
reflected
the allows for objects that do not produce their own light to be seen
reflection
when light strikes an object, some of the light ______________ and allows for the object to be________
reflected, detected by the eyes
when light strikes a _______, _______ object, like a mirror, it is reflected so that a __________ can be seen which looks very similar to the object seen with the light reflected directly from it
smooth, shiny, reflection
the color of light __________ from a object is the color that the object _________
reflected, appears
when light passes from one type of transparent material to another and changes direction
refraction
give two examples of refraction
1) light travels through a magnifying glass and we see a larger view of the object
2) when a straw is viewed in water, light passes fro the water to the air causing the path of light to bend. when the light bends, the straw appears bent
when light does not pass through or reflect from a material
absorption
when light is absorbed
it remains in the material as another form of energy
