Question 1

How faint an object we can see with our eyes is limited only by the integration time of our eye (how often it processes input).

Accepted Answer

A) True 
 B)False

Question 2

Astronomers can use ground-based telescopes to observe in the majority of which of the following parts of the electromagnetic spectrum?

Accepted Answer

A) visible and infrared 
B) visible and ultraviolet 
C) visible and radio 
D) visible,ultraviolet,and infrared 
E) visible,infrared,and radio 
A) visible and infrared 
B) visible and ultraviolet 
C) visible and radio 
D) visible,ultraviolet,and infrared 
E) visible,infrared,and radio

Question 3

NASA's Kuiper Airborne Observatory and SOFIA are two examples of telescopes placed in high-flying aircraft.Why would astronomers put telescopes in airplanes?

Accepted Answer

A) to get the telescopes closer to the stars 
B) to get the telescopes away from the light-pollution of cities 
C) to get the telescopes above the majority of the water vapor in the earth's atmosphere 
D) to be able to observe one object for more than 24 hours without stopping. 
E) to allow the telescopes to observe the full spectrum of light 
A) to get the telescopes closer to the stars 
B) to get the telescopes away from the light-pollution of cities 
C) to get the telescopes above the majority of the water vapor in the earth's atmosphere 
D) to be able to observe one object for more than 24 hours without stopping. 
E) to allow the telescopes to observe the full spectrum of light

Question 4

Neutrino detectors typically capture one out of every _________ neutrinos that pass through them.

Accepted Answer

A) 10 
B) 106 (one million) 
C) 109 (one billion) 
D) 1012 (one trillion) 
E) 1022 (10 billion trillion) 
A) 10 
B) 106 (one million) 
C) 109 (one billion) 
D) 1012 (one trillion) 
E) 1022 (10 billion trillion)

Question 5

What property of light allows a grating to disperse the light from an object into a spectrum?

Accepted Answer

A) interference 
B) reflection 
C) refraction 
D) aberration 
E) magnification 
A) interference 
B) reflection 
C) refraction 
D) aberration 
E) magnification

Question 6

Which telescope would collect 100 times more light than a 1-meter telescope?

Accepted Answer

A) 100-meter telescope 
B) 80-meter telescope 
C) 50-meter telescope 
D) 30-meter telescope 
E) 10-meter telescope 
A) 100-meter telescope 
B) 80-meter telescope 
C) 50-meter telescope 
D) 30-meter telescope 
E) 10-meter telescope

Question 7

Ultraviolet radiation is hard to observe primarily because:

Accepted Answer

A) the Earth's atmosphere easily absorbs it 
B) no space-based telescopes operate at ultraviolet wavelengths 
C) only the lowest mass stars emit ultraviolet light 
D) very few objects emit at ultraviolet wavelengths 
E) the Earth emits too much ultraviolet background light 
A) the Earth's atmosphere easily absorbs it 
B) no space-based telescopes operate at ultraviolet wavelengths 
C) only the lowest mass stars emit ultraviolet light 
D) very few objects emit at ultraviolet wavelengths 
E) the Earth emits too much ultraviolet background light

Question 8

What part(s)of the human eye is responsible for detecting light?

Accepted Answer

A) cornea 
B) lens 
C) pupil 
D) rods and cones 
E) iris 
A) cornea 
B) lens 
C) pupil 
D) rods and cones 
E) iris

How faint an object we can see with our eyes is limited only by the integration time of our eye (how often it processes input).

Astronomers can use ground-based telescopes to observe in the majority of which of the following parts of the electromagnetic spectrum?

NASA's Kuiper Airborne Observatory and SOFIA are two examples of telescopes placed in high-flying aircraft.Why would astronomers put telescopes in airplanes?

Neutrino detectors typically capture one out of every _________ neutrinos that pass through them.

What property of light allows a grating to disperse the light from an object into a spectrum?

Which telescope would collect 100 times more light than a 1-meter telescope?

Ultraviolet radiation is hard to observe primarily because:

What part(s)of the human eye is responsible for detecting light?

Why Learn Astronomy

Patterns in the Skymotions of Earth

Motion of Astronomical Bodies

Gravity and Orbits

Light

The Birth and Evolution of Planetary Systems

The Terrestrial Planets and Earths Moon

Atmospheres of the Terrestrial Planets

Worlds of Gas and Liquid the Giant Planets

Planetary Adornments Moons and Rings

Dwarf Planets and Small Solar System Bodies

Taking the Measure of Stars

Our Starthe Sun

Star Formation and the Interstellar Medium

Evolution of Low-Mass Stars

Evolution of High-Mass Stars

Relativity and Black Holes

The Expanding Universe

Galaxies

The Milky Waya Normal Spiral Galaxy

Modern Cosmology

Large-Scale Structure in the Universe

Life

Filters

Exam 6: The Tools of the Astronomer

How faint an object we can see with our eyes is limited only by the integration time of our eye (how often it processes input).

Astronomers can use ground-based telescopes to observe in the majority of which of the following parts of the electromagnetic spectrum?

NASA's Kuiper Airborne Observatory and SOFIA are two examples of telescopes placed in high-flying aircraft.Why would astronomers put telescopes in airplanes?

Neutrino detectors typically capture one out of every _________ neutrinos that pass through them.

What property of light allows a grating to disperse the light from an object into a spectrum?

Which telescope would collect 100 times more light than a 1-meter telescope?

Ultraviolet radiation is hard to observe primarily because:

What part(s)of the human eye is responsible for detecting light?

Why Learn Astronomy

Patterns in the Skymotions of Earth

Motion of Astronomical Bodies

Gravity and Orbits

Light

The Birth and Evolution of Planetary Systems

The Terrestrial Planets and Earths Moon

Atmospheres of the Terrestrial Planets

Worlds of Gas and Liquid the Giant Planets

Planetary Adornments Moons and Rings

Dwarf Planets and Small Solar System Bodies

Taking the Measure of Stars

Our Starthe Sun

Star Formation and the Interstellar Medium

Evolution of Low-Mass Stars

Evolution of High-Mass Stars

Relativity and Black Holes

The Expanding Universe

Galaxies

The Milky Waya Normal Spiral Galaxy

Modern Cosmology

Large-Scale Structure in the Universe

Life

Filters