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A well known infrared telescope is
____________.
A diffraction grating consists of
Interference can be shown by using
Spitzer
many closely spaced parallel slits.
water waves.
light waves.
sound waves.
What does a prism do?
Which of these electromagnetic
waves has the shortest wavelength?
Light waves are ____ waves.
separates visible light into several
colors
Which of the following types of
light can tell us about an object’s
temperature?
infrared
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gamma
transverse waves.
Which scientist was the first to use
the telescope in astronomy?
A magnifying glass is a
Galileo
converging lens.
The three primary colors of
pigments are
Compared to the wavelength of
ultraviolet waves, the wavelength
of infrared waves is
The color of an opaque object is
determined by the light that is
magenta, cyan, and yellow.
longer.
reflected.
The Hertz is a
If sunlight were green instead of
white, the most comfortable color
to wear on a hot day would be
Different colors of light correspond
to different light
unit of frequency.
A refracting telescope produces an
image using a(n) ____.
objective lens
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green
Electromagnetic waves with higher
frequencies have wavelengths that
are
shorter
wavelength
Which of the following is NOT a
transverse wave?
A.
light.
D.
all of the above.
B.
radio wave.
E.
none of the above
C.
sound
sound
Which color has the longest
wavelength?
When a wave bends around an
object such as a star, this is called
Stellar distances are usually
expressed in what units?
diffraction.
light-years
Electromagnetic waves
What information does a star’s
spectrum offer about the star?
A well known radio telescope is
____________.
can travel through a vacuum.
chemical composition
VLA
Which of the following are fundamentally
different from the others?
A.
Gamma rays
D.
Light waves
B.
Radio waves
E.
X-rays
C.
Sound waves
Gamma rays, X-rays, visible light,
and radio waves are all types of
____.
Light does not pass through what
kind of materials?
electromagnetic radiation
opaque
red
sound
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A converging, or convex, lens
When two or more waves are at the
same place at the same time, the
resulting effect is called
The primary purpose of polarized
sunglasses is_____.
A converges parallel rays of light.
B.
refracts parallel rays of
light.
C.
is thicker in the center than
at the edges.
D.
bends parallel rays of light
so they cross at a single point.
A reflecting telescope produces an
image using a(n) ____.
concave mirror
Which color has the most energetic
photons?
violet
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interference
The distance between successive
identical parts of a wave is called
its
wavelength
Which of the following types of
light might tell us about how our
universe began and might end?
microwaves
to block glare from reflections.
A wave created by shaking a rope
up and down is called a
Transverse wave
The three primary colors of light
are_____.
red, green, and blue.
An image of a distant object
formed by a single converging
(convex) lens
Which of the following is NOT an
electromagnetic wave?
A.
Sound B.
Radio C.
Light D.
Infrared E.
X-ray
Which of the following types of
light can allow us to “see” the
energy given off when blackholes
collide with each other?
A. is upside down.
D.
can be projected on a wall.
B.
C.
can be focused on a screen.
is real.
What was the first space telescope
built by NASA?
Hubble
Which of the following types of
light can allow us to “see”
blackholes?
x-rays
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sound
The image your eye receives is
Upside down
Which of the following is NOT a
form of electromagnetic radiation?
A.
radio waves
B.
gravity C.
gamma
rays
D.
visible light
gravity
Gamma rays
If the sun were to disappear right
now, we wouldn't know about it for
8 minutes because it takes 8
minutes
for light to travel from the sun to
Earth.
Diffraction occurs for
A.
radio waves. D.
electron beams.
B.
X-rays. E.
all of the
above.
C.
light.
All of them
Compared to its speed in air, the
speed of light in water is
slower
Compared to the velocity of radio
waves, the velocity of visible light
waves is
The same
Heat lamps give off mostly
infrared
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What advantage do space
telescopes have over telescopes
used on Earth?
They are not affected by Earth’s
atmosphere.
Electromagnetic waves are
transverse waves.
A well known visible light
telescope is ____________.
Hubble
The main difference between a
radio wave and a light wave is its
wavelength
If two polarizing filters are held
with their polarization axes at right
angles to each other, the amount of
light transmitted compared to when
their axes are parallel is
zero
A well known X-ray telescope is
____________.
Chandra