I took an Astronomy test that you can retake multiple times and i saved the answers some right, some wrong, and some are repeated. If the answer was marked in red its the correction The different colors are the different test. If they are
CHAPTER 5
Question 1
Which of the following sequences of electromagnetic radiation is correct in order of increasing energy?
Visible, UV, X-rays, gamma rays
Question 2
Photons of blue light
have a greater energy than photons of red light.
Question 3
A telescope whose objective is a lens and contains no mirrors is a(n) ____ telescope.
refracting
Question 4
Interferometry
Question 5
Astronomers build telescopes on tops of mountains because
a and b
Question 6
A ____ is a piece of glass with many small parallel lines etched on its surface to produce a spectrum.
Question 7
A new generation of ground-based telescopes is currently being built that overcomes the limitations of the older large telescopes. Some of these new telescopes
all of the above
Question 8
The largest single dish radio telescope is ______ .
suspended on cables in a valley
Question 9
Which of the following types of electromagnetic radiation has the lowest energy?
Question 10
Which of the following features of a telescope determines its light gathering power?
The diameter of the objective
Question 11
Blue light differs from red light in that
Question 12
The technique of connecting multiple telescopes together to combine the images from each telescope is known as
interferometry.
Question 13
Which of the following telescopes must be used above Earth's atmosphere?
Question 14
The main reason for positioning many radio telescopes across a large area and combining the signals is
to produce higher resolution images.
Question 15
Long wavelength visible light
will appear red in color to the average human eye.
Question 16
In a reflecting telescope the objective is a _______.
lens
Question 17
What statement below best describes the refraction of light?
Question 18
The main reason for building large optical telescopes on the Earth's surface is
Question 19
A ____ has a few million light sensitive diodes in an array typically about a half-inch square.
charge-coupled device
Question 20
Radio telescopes are important in astronomy because
they can detect cool hydrogen.
Question 1
In a reflecting telescope the objective is a _______.
mirror
Question 2
Photons of blue light
have a greater energy than photons of red light.
Question 3
The energy of a photon
Question 4
Which of the following types of electromagnetic radiation has the lowest energy?
Infrared radiation
Question 5
A ____ is a piece of glass with many small parallel lines etched on its surface to produce a spectrum.
grating
Question 6
Far infrared astronomy must be done from high-flying aircraft because
far infrared radiation is absorbed low in Earth's atmosphere.
Question 7
Radio telescopes have poor resolving power because
a and b
Question 8
What statement below best describes the refraction of light?
Question 9
Which of the following telescopes must be used above Earth's atmosphere?
an x-ray telescope
Question 10
Ultraviolet radiation from a star
Question 11
____ has (have) wavelengths that are longer than visible light.
Infrared radiation/ a b c
Question 12
Which of the following sequences of electromagnetic radiation is correct in order of increasing energy?
Visible, UV, X-rays, gamma rays
Question 13
____ is absorbed by ozone in Earth's atmosphere that is located between 20 km and 40 km above Earth's surface. Therefore, telescopes to observe this radiation must be placed in space.
Question 14
Astronomers build telescopes on tops of mountains because
a and b
Question 15
What is the relationship between color and wavelength for light?
Question 16
____ is absorbed by water in Earth's atmosphere and requires that telescopes for observing at these wavelengths be placed on mountain tops or in space.
Question 17
The largest single dish radio telescope is ______ .
suspended on cables in a valley
Question 18
In which way does a photon of blue light NOT differ from a photon of red light?
Question 19
A new generation of ground-based telescopes is currently being built that overcomes the limitations of the older large telescopes. Some of these new telescopes
all of the above
Question 20
Which of the following types of electromagnetic radiation has the highest frequency?
Gamma-rays
Question 1
A new generation of ground-based telescopes is currently being built that overcomes the limitations of the older large telescopes. Some of these new telescopes
all of the above
Question 2
Which of the following sequences of electromagnetic radiation is correct in order of increasing energy?
Visible, UV, X-rays, gamma rays
Question 3
Photons of blue light
have a greater energy than photons of red light.
Question 4
Blue light differs from red light in that
Question 5
Radio telescopes are ____ telescopes.
reflecting
Question 6
Interferometry
is used to improve the resolving power.
Question 7
A nanometer is
a unit of length.
Question 8
What statement below best describes the refraction of light?
The spreading out of white light according to wavelength.
Question 9
Radio telescopes are important in astronomy because
they can detect cool hydrogen.
Question 10
Far infrared astronomy must be done from high-flying aircraft because
far infrared radiation is absorbed low in Earth's atmosphere.
Question 11
____ has (have) wavelengths that are longer than visible light.
The largest single dish radio telescope is ______ .
suspended on cables in a valley
Question 13
In a reflecting telescope the objective is a _______.
mirror
Question 14
What is the wavelength of the longest wavelength light that can be seen with the human eye?
Question 15
Which of the following telescopes must be used above Earth's atmosphere?
an x-ray telescope
Question 16
Which of the following types of electromagnetic radiation has the smallest frequency?
Radio
Question 17
Radio telescopes have poor resolving power because
radio waves have long wavelengths.
Question 18
The ____ of a telescope is a measure of its ability to show fine detail and depends on the diameter of the objective.
resolving power
Question 19
A ____ has a few million light sensitive diodes in an array typically about a half-inch square.
charge-coupled device
Question 20
Which of the following types of electromagnetic radiation has the greatest energy?
ultraviolet
____ has (have) wavelengths that are shorter than visible light.
I. Gamma-rays
II. Ultraviolet light
III. Infrared radiation
IV. X-rays
I, II, & IV
Which of the following features of a telescope determines its light gathering power?
The diameter of the objective
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