17 terms

science light test

in a vacuum, all electromagnetic waves have the same
a. wavelength
b. frequency
c. speed
d. amplitude
c. speed
visible light has a higher frequency than
a. X-rays.
b. ultraviolet rays
c. infrared rays
d. gamma rays
c. infrared rays
a packet of light energy is called a
a. wavicle
b. photon
c. wave
d. photoelectron
b. photon
a material that reflects or absorbs any light that strikes it is
b. translucent
c. translucent
d. concave
a. opaque
frosted glass and wax paper are
a. transparent
b. translucent
c. clear
d. opaque
b. translucent
how would a tomato look under blue light?
a. the tomato would seem to disappear
b. the tomato would still appear red
c. the tomato would appear black
d. the tomato would appear white
c. the tomato would appear black
____ is the complementary color to blue.
a. yellow
b. cyan
c. green
d. red
a. yellow
_____ lines of color produce all the color in a color tv
c. red, blue, green
d. cyan, white, yellow
c. red, blue, green
objects that produce visible light are know as ____
a. incandescent objects
b. luminous bodies
c. primary objects
d. rainbows
b. luminous bodies
when a police officer uses a radar for speed control, the officer is using what kind of electromagnetic waves?
a. radio waves
b. gamma rays
c. ultraviolet rays
d. X-rays
c. ultraviolet rays
for two polarizing filters to block all light passing through them, one filter should be rotated _____degrees from the other
a thermogram identifies the warm and cool parts of an object by using _____
infrared rays
most of the energy of an incandescent bulb is given off as _____
as parallel rays of light pass through a(n)______lens, they are bent toward the center of the lens
any two colors that combine to form ______ light are called complementary colors
when you focus on a(n) ______object, the lens in your eye becomes longer and thinner
Compare and contrast regular and diffuse reflection
A regular reflection is when the light is evenly spread out on something, and a diffuse reflection is when it hits a bumpy material