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Light Energy
Test Description: Light
Instructions: Answer all questions to get your test result.
1) The shirt looks red because
A
red light is being absorbed
B
red light is refracting
C
red light is being reflected
D
red light in traveling through
2) When the sun shines you cast a shadow because
A
you are translucent
B
you are smart
C
you are transparent
D
you are opaque
3) To reflect light its best to use
A
a opaque material
B
a translucent material
C
a flat rough surface
D
a flat shiny surface
4) White light is
A
only from a light bulb
B
all colors of visible light that we see when reflected or refracted
C
all colors except blue
D
all colors of rainbow that we see when absorbed
5) When light slows down and bends it...
A
refracts
B
transmits
C
bounces
D
reflects
6) An example go how we use refractions is
A
Wearing glasses to focus on things
B
using a telescope to see distance
C
using a magnifying glass to see things up close
D
ALL choices
7) When the arrow changed direction we used what concept
A
absorption
B
Translucent
C
refraction
D
reflection
8) if it makes its own light it is
A
illuminated
B
refracted
C
luminous
D
reflected
9) What is the color black
A
all light being reflected changed to heat energy
B
all light being absorbed changed to heat energy
10) Refraction happens when
A
light absorbs then is reflected
B
light travels through one medium to another
11) A lens that is thick in middle and thin on sides is
A
concave
B
a prism
C
convex
D
glass
12) A packet of energy is called
A
proton
B
a wave
C
a photon
D
electron
13) the angel of incidence in reflection will equal the angle of
A
diffraction
B
traction
C
reflection
D
refraction
14) Translucent materials
A
allow all light to travel through
B
block all light
C
some light can travel through
15) What is the measurement of light wave
A
frequency
B
wavelength
C
Light ray
D
feet
16) Number of waves produced in a given amount of time (how often)
A
frequency
B
amplitude
C
wave speed
D
wave length
17) The amplitude of a wave is..
A
how visible
B
how high the wave is
C
how long the wave is
D
how fast
18) What is different between lens and a mirror
A
A mirror refract
B
a mirror reflects light a lens refracts light
C
the are the same
D
a mirror bends light
19) What are 2 examples of invisible light ?
A
ultrasonic and UV
B
Infrared and UV
C
Infrared and Ultrasonic
D
Full spectrum and UV
20) What waves are the longest
A
Radio
B
Infrared
C
UV
D
Gamma
*select an answer for all questions
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