chapter 12 physical science

the three primary colors of pigment appear ____ when they are mixed a. white b. gray c. black d. brown

black

which type of cells in your eyes allow you to see the color violet a. red cones b. green cones c. blue cones d. rods

blue cones

if a transparent blue filter is placed over a camera lens, what happens to visible light entering it a. all colors of visible light pass through the filter and enter the camera lens b. blue light is transmitted by the filter to the camera, and other colors of light are absorbed by the filter c. blue light is absorbed by the filter, and the other colors of visible light enter the camera lens d. blue light is reflected by the filter away from the camera, and the other colors of visible light enter the camera

blue light is transmitted by the filter to the camera, and other colors of light are absorbed by the filter

if a transparent blue filter is placed over a camera lens, what happens to visible light entering it a. all colors of visible light pass through the filter and enter the cameral lens b. blue light is transmitted by the filter to the camera, and other colors of light are absorbed by the filter c. blue light is reflected by the filter away from the cameral, and the other colors of visible light enter the camera d. blue light is absorbed by the filter, and the other colors of visible light enter the cameral lens

blue light is transmitted by the filter to the camera, and other colors of light are absorbed by the filter

___ light is light of only one wavelength that travels in one direction with a constant distance between corresponding crests a. incoherent b. coherent c. incandescent d. compact

coherent

____ light is light of only one wavelength that travels in one direction with a corresponding distance between corresponding crests a. compact b. coherent c. incoherent d. incandescent

coherent

which term describes laser light a. incoherent b. coherent c. incandescent d. fluorescent

coherent

which of the following types of cells is located in the retina a. cone b. olfactory c. conjunctiva d. sclera

cone

which of the following types of cells is located in the retina a. olfactory b. cone c. sclera d. conjunctiva

cone

what makes a neon light glow a. the filament is heated until it glows, producing light b. phosphors absorb ultraviolet light from gas molecules and begin to glow c. the gas inside it is heated until it glows, producing light d. electrons collide with the gas molecules inside it and produce visible light

electrons collide with the gas molecules inside it and produce visible light

what type of light bulb uses phosphors to convert ultraviolet radiation into visible light a. incandescent light bulb b. fluorescent light bulb c. tungsten- halogen bulb d. neon light

fluorescent light bulb

which of the following best describes an incandescent light a. gives off light when phosphors absorb ultraviolet radiation b. contains argon gas at low pressure c. gives off light when a tungsten filament is heated d. uses the least amount electricity to produce light

gives off light when a tungsten filament is heated

which of the following best describes an incandescent light a. gives off light when phosphors absorb ultraviolet radiation b. contains argon gas at low pressure c. gives off light when a tungsten filament is heated d. uses the least amount of electricity to produce light

gives off light when a tungsten filament is heated

a ____ is an image of a three-dimensional object produced without using a lens a. digital photograph b. optical fiber c. hologram d. light pipe

hologram

which of the following light sources does not rely on the flow of an electric current through a gas to produce light a. fluorescent light b. incandescent light c. neon light d. sodium-vapor light

incandescent light

what is the term for the property of a material that indicates how much light slows down when traveling in the material a. pigment b. filter c. index of refraction d. mirage

index of refraction

what property of a material indicates how much light slows down when traveling in it a. density b. index of diffusion c. index of refraction d. wave index

index of refraction

what property of a material indicates how much light slows down when traveling through it a. index of refractions b. density c. wave index d. index of diffusion

index of refractions

why does grass look green a. it absorbs green light b. it reflects green light c. it reflects all color of light except green d. it reflects all colors of light except red

it reflects green light

____ produces a narrow, intense beam of coherent light a. lasers b. fluorescent bulbs c. neon lights d. tungsten-halogen lights

lasers

the part of the eye that focuses the light is called the a. pupil b. lens c. iris d. retina

lens

why cant you see your reflection in a brick wall a. light rays are reflected in only one direction from the rough surface b. reflection of light from a rough surface is regular reflection c. light rays are reflected in many directions from the uneven surface d. no light is reflected from a brick wall

light rays are reflected in many directions from the uneven surface

light waves whose magnetic fields vibrate in only one direction is called ___ light a. reflected b. linearly polarized c. diffused d. refracted

linearly polarized

light waves whose magnetic fields vibrate in only one direction is called ____ light a. reflected b. refracted c. diffused d. linearly polarized

linearly polarized

when visible light passes through a prism, why does red light bend the least a. longer wavelengths are refracted more by a prims than shorter wavelengths b. longer wavelengths are refracted less by a prism than shorter wavelengths c. shorter wavelengths cannot pass through a prism d. longer wavelengths cannot pass through a prism

longer wavelengths are refracted less by a prism than shorter wavelengths

when visible light passes through a prism, why does red light bend the least a. shorter wavelengths cannot pass through a prism b. longer wavelengths are refracted more by a prism than shorter wavelength c. longer wavelengths are refracted less by a prism than shorter wavelengths d. longer wavelengths cannot pass through a prism

longer wavelengths are refracted less by a prism than shorter wavelengths

two polarizing filters at right angles will transmit ___ that strikes them a. all of the light b. none of the light c. some of the light d. most of the light

none of the light

___ materials only absorb and reflect light a. translucent b. transparent c. clear d. opaque

opaque

____ materials only absorb and reflect light a. transparent b. opaque c. clear d. translucent

opaque

supermarket cashiers use ___ to read bar codes a. mirages b. optical scanners c. neon lights d. polarizing filters

optical scanners

a ___ is a colored material that absorbs some colors and reflects others a. prism b. filter c. pigment d. laser

pigment

a ____ is a colored material that absorbs some colors and reflects other a. filter b. pigment c. laser d. prism

pigment

which of the following does not use lasers a. cataract surgery b. cd players c. rainbows d. holograms

rainbows

which of the following colors of visible light has the longest wavelength a. violet b. yellow c. red d. blue

red

which of the following colors of visible light has the longest wavelength a. yellow b. blue c. red d. violet

red

which cone cells absorb yellow light a. red and green b. red and yellow c. blue d. blue and yellow

red and green

which of the following explains why a prism separates white light in to the colors of the rainbow a. interference b. fluorescence c. diffraction d. refraction

refraction

a glass prism __ light, producing the individual colors of visible light a. refracts b. reflects c. diffuses d. diffracts

refracts

a glass prism ___ light, producing the individual colors of visible light a. reflected b. diffracts c. refracts d. diffuses

refracts

reflection of light waves from a smooth, mirror-like surface is called a. regular reflection b. irregular reflection c. diffuse reflection d. refraction

regular reflection

reflection of light waves from a smooth, mirrors-like surface is called a. diffuse reflection b. irregular reflection c. refraction d. regular reflection

regular reflection

the part of the eye where light is focused is called the a. retina b. pupil c. lens d. iris

retina

which of the following cells is most useful at night a. rod b. blue cone c. red cone d. green cone

rod

which of the following cells is most useful at night a. rod b. red cone c. green cone d. blue cone

rod

what part of they eye enables you to see when there is very little light a. cones b. lens c. retina d. rods

rods

if the handle of your aquarium net appears to be bent more when it is placed into a glass aquarium full of water than it does when the tank is empty, which of the following statements is true a. the index of refraction of water is less than the index of refraction of glass b. the index of refraction of water is greater than the index of refraction of air c. the angle of incidence of the water is greater than the angle of reflection of the glass d. the index of refraction of water is less than index of refraction of air

the index of refraction of water is greater than the index of refraction of air

what happens when light travels from air into water at an angle to the normal a. the light is refracted b. the light changes color c. the light is reflected d. the light speeds up

the light is refracted

what do you see when noting the color of an object a. the light it reflects b. the light it absorbs c. polarization d. diffuse reflection

the light it reflects

the angle at which light strikes a surface is ___ the angle at which it is reflected a. twice as great as b. less than c. greater than d. the same as

the same as

the angle which light strikes a surface is ___ the angle at which it is reflected a. the same as b. greater than c. less than d. twice as great as

the same as

what determines the color of an object a. the index of refraction of the object b. the index of diffraction of the object c. the wavelength of light it reflects d. the wavelength of light it absorbs

the wavelength of light it reflects

what determines the color of an object a. the wavelength of light it absorbs b. the wavelength of light it reflects c. the index of refraction of the object d. the index of diffraction of the object

the wavelength of light it reflects

____ is the complete reflection of light at the boundary between two surfaces a. holography b. mirage c. rainbow d. total internal reflection

total internal reflection

what term describes objects that allow some light, but not a clear image to pass through a. translucent b. reflective c. transparent d. opaque

translucent

which word describes materials that transmit but also scatter the light that strikes them a. diffuse b. translucent c. opaque d. transparent

translucent

which of these types of material transmits light without scattering it a. translucent b. opaque c. reflective d. transparent

transparent

which of these types of material transmits the light that strikes it without scattering the light a. translucent b. transparent c. opaque d. reflective

transparent

optical fibers are __ that can transmit light from one place to another a. opaque glass fibers b. coherent beams c. transparent glass fibers d. filters acting as parallel slits

transparent glass fibers

in a fluorescent light, electros collide with atoms to produce a. ultraviolet light b. gamma rays c. infrared light d. visible light

ultraviolet light

what do the phosphors inside fluorescent bulbs absorbs to create a glow a. incandescent light b. ultraviolet radiation c. halogens d. argon

ultraviolet radiation

which light waves are bent most when passing through a prism a. red waves b. yellow waves c. blue waves d. violet waves

violet waves

what color of light is produced when the three primary colors of light are combined in equal amounts a. black b. yellow c. white d. cyan

white