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Document related concepts
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Transcript 
Telescopes
Light
Waves
Color
Lenses
1pt
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1 pt
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1 pt
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1 pt
1 pt
1 pt
1 pt
A well known infrared
telescope is
____________.
1 PT
Spitzer
A well known x-ray
telescope is ________.
2 PT
Chandra
A well known radio
telescope is
___________
3 PT
VLA or Arecibo
A well known visible
light telescope is
__________
4 PT
Hubble
Who was the first to
use a telescope in
astronomy?
5 PT
Galileo
A diffraction
grating consists of
__________
1 PT
Many closely
spaced parallel
slits
What does a
prism do?
2 PT
Separates visible
lights into several
colors
Which
electromagnetic
wave has the
shortest
wavelength?
3 PT
Gamma rays
Which of the
electromagnetic
waves has the longest
wavelength?
4 PT
radio
What type of waves
are light waves?
5 PT
transverse
What determines the
color of an opaque
object?
1 PT
The light
absorbed,
reflected and
transmitted
Electromagnetic
waves with higher
frequencies have
wavelengths that are
___
2 PT
shorter
When a wave bends
around an object such
as a star, this is called
3 PT
diffraction
Light waves cannot
pass through what
type of materials?
4 PT
opaque
When two or more
waves are at the same
place at the same time,
the resulting effect is
called
5 PT
interference
What are the primary
colors of pigments?
1 PT
Magenta,
cyan,
yellow
What are the
primary colors of
light?
2 PT
Red, green,
blue
Different colors of
light correspond to
different light ____
3 PT
wavelengths
What color has
the longest
wavelength?
4 PT
red
What color has the
shortest wavelength?
5 PT
violet
A refracting
telescope
produces an
image using
a(n) ____.
1 PT
Objective
lens
A reflecting
telescope produces
an image using
a(n) ____.
2 PT
Concave
mirror
An image of a distant
object formed by a
single converging
(convex) lens
3 PT
Is upside-down
Can be focused on a screen
Is real
Can be projected on a wall
(only one answer is sufficient)
The image your eye
receives is
upside down or right
side up?
4 PT
Upside
down
An image formed by a
single diverging
(concave) lens _____
5 PT
Is virtual
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