Sunday, February 10, 2013

More Astronomy Questions Part 1


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 colorare the different test. If they are slashed the answer is wrong.
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  
none of the above

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.  
prism

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?
X-rays

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  
blue light has a longer wavelength than red light.
blue light has a higher energy than red light.

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?  
a radio telescope

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?
The change in direction of a ray of light as it reflects off a surface
The absorption of light as it travels though a dense, transparent material..
The absorption of light as it travels though a dense, transparent material.

Question 18
The main reason for building large optical telescopes on the Earth's surface is
that the warm temperatures of the Earth's surface allow for easier telescope operation.

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
depends only on the speed of the light.

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?
The change in direction of a ray of light as it reflects off a surface
The absorption of light as it travels though a dense, transparent material.

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
a and b

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.
Infrared radiation

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?
Wavelength decreases from blue light to red 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.
Radio wave radiation

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?
Energy

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
blue light has a higher energy than red light.
blue light has a higher energy than red light. 
blue light has a longer wavelength than red light.

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.
The absorption of light as it travels though a dense, transparent material.
The change in direction of a ray of light as it reflects off a surface.
The absorption of light as it travels though a dense, transparent material..

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.
a, b and d/ infrared ultraviolet 

Question 12
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?
7000 nm 700nm

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?
Infrared radiation
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

No comments:

Post a Comment