Question 1

A neutral atom always contains

Accepted Answer

A) the same number of protons as it does neutrons. 
B) the same number of electrons as it does neutrons. 
C) the same number of protons as it does electrons. 
D) twice as many protons as it does neutrons. 
E) twice as many neutrons as it does protons. 
A) the same number of protons as it does neutrons. 
B) the same number of electrons as it does neutrons. 
C) the same number of protons as it does electrons. 
D) twice as many protons as it does neutrons. 
E) twice as many neutrons as it does protons.

Question 2

At what wavelength would a star radiate the greatest amount of energy if the star has a surface temperature of 10,000 K

Accepted Answer

A) 10 nm 
B) 100 nm 
C) 300 nm 
D) $1.0 × 10^4$ nm 
E) $3.0 × 10^{10}$ nm 
A) 10 nm 
B) 100 nm 
C) 300 nm 
D) $1.0 × 10^4$ nm 
E) $3.0 × 10^{10}$ nm

Question 3

A ____________ will be obtained from an observed star's spectrum that has been shifted towards shorter wavelengths as the star is moving ________ us.

Accepted Answer

The answer of A ____________ will be obtained from an...

Question 4

The ____ of a gas is a measure of the average speed of the particles (atoms or molecules) in the gas.

Accepted Answer

A) heat 
B) composition 
C) temperature 
D) blue shift 
E) binding energy 
A) heat 
B) composition 
C) temperature 
D) blue shift 
E) binding energy

Question 5

Figure 6-1
  
-A plot of the continuous spectra of five different stars is shown in Figure 6-1. Based on these spectra, which of the stars has the lowest temperature

Accepted Answer

A) Star A 
B) Star B 
C) Star C 
D) Star D 
E) Star E 
A) Star A 
B) Star B 
C) Star C 
D) Star D 
E) Star E

Question 6

Isotopes of the same element have the same number of protons.

Accepted Answer

A) True 
 B)False

Question 7

What holds the electron to the nucleus of an atom

Accepted Answer

A) Coulomb force 
B) binding energy 
C) thermal energy 
D) heat 
A) Coulomb force 
B) binding energy 
C) thermal energy 
D) heat

Question 8

Describe the appearance of each of the three types of spectra described by Kirchhoff's laws. Describe how each of the three types of spectra is formed.

Accepted Answer

(1) A hot solid, liquid, or dense gas em

Question 9

____ is a set of rules that describes how atoms and subatomic particles behave.

Accepted Answer

A) Kirchhoff's law 
B) Blackbody radiation law 
C) The Coulomb force 
D) Quantum mechanics 
E) The binding energy 
A) Kirchhoff's law 
B) Blackbody radiation law 
C) The Coulomb force 
D) Quantum mechanics 
E) The binding energy

Question 10

Which spectrum is shown above

Accepted Answer

A) emission 
B) absorption 
C) continuous 
D) blackbody 
A) emission 
B) absorption 
C) continuous 
D) blackbody

Question 11

The process of removing an electron from a stable nucleus is known as

Accepted Answer

A) ionization. 
B) Doppler broadening. 
C) collisional broadening. 
D) a red shift. 
E) quantum mechanics. 
A) ionization. 
B) Doppler broadening. 
C) collisional broadening. 
D) a red shift. 
E) quantum mechanics.

Question 12

-In the above image of a glowing gas cloud, you mainly see the color pink. Which spectra would you mostly expect from this gas cloud

Accepted Answer

A) absorption 
B) continuous 
C) emission 
D) blackbody 
A) absorption 
B) continuous 
C) emission 
D) blackbody

Question 13

The Lyman series lines of hydrogen all lie in the infrared.

Accepted Answer

A) True 
 B)False

Question 14

What would the spectrum of hydrogen look like if we could see into the ultraviolet

Accepted Answer

We would see many more lines,

Question 15

When the electrons in an atom are in their lowest possible energy levels, the atom is said to be in its ____________________ state.

Accepted Answer

The answer of When the electrons in an atom are...

Question 16

The hotter an object, the bluer it appears.

Accepted Answer

A) True 
 B)False

Question 17

in the following model of an atom, draw a transition from the first excited state to the third excited state. Then draw a transition from the third excited state to the second excited state. Then draw a transition from the second excited state to the first excited sate. To draw these, draw the electron's motion as a line with an arrow to indicate direction and draw the photon as a wave with an arrow to indicated direction. Label the electron and photon. Label whether this is an absorption, emission, or continuous spectrum.

Accepted Answer

The answer of in the following model of an atom,...

Question 18

If the radial velocity of a star is positive, the star is moving _________________ you.

Accepted Answer

A) parallel to 
B) away from 
C) towards 
D) in circles around 
A) parallel to 
B) away from 
C) towards 
D) in circles around

Question 19

Red and blue in redshift and blueshift refer to color.

Accepted Answer

A) True 
 B)False

Question 20

Part of astrophysics is understanding the history of celestial objects.

Accepted Answer

A) True 
 B)False

A neutral atom always contains

At what wavelength would a star radiate the greatest amount of energy if the star has a surface temperature of 10,000 K

A ____ will be obtained from an observed star's spectrum that has been shifted towards shorter wavelengths as the star is moving us.

The ____ of a gas is a measure of the average speed of the particles (atoms or molecules) in the gas.

Figure 6-1 -A plot of the continuous spectra of five different stars is shown in Figure 6-1. Based on these spectra, which of the stars has the lowest temperature

Isotopes of the same element have the same number of protons.

What holds the electron to the nucleus of an atom

Describe the appearance of each of the three types of spectra described by Kirchhoff's laws. Describe how each of the three types of spectra is formed.

____ is a set of rules that describes how atoms and subatomic particles behave.

Which spectrum is shown above

The process of removing an electron from a stable nucleus is known as

-In the above image of a glowing gas cloud, you mainly see the color pink. Which spectra would you mostly expect from this gas cloud

The Lyman series lines of hydrogen all lie in the infrared.

What would the spectrum of hydrogen look like if we could see into the ultraviolet

When the electrons in an atom are in their lowest possible energy levels, the atom is said to be in its ____________________ state.

The hotter an object, the bluer it appears.

If the radial velocity of a star is positive, the star is moving _________________ you.

Red and blue in redshift and blueshift refer to color.

Part of astrophysics is understanding the history of celestial objects.

Here and Now

A Users Guide to the Sky

Cycles of the Sun and Moon

The Origin of Modern Astronomy

Light and Telescopes

The Sun

The Family of Stars

The Formation and Structure of Stars

The Deaths of Stars

Neutron Stars and Black Holes

The Milky Way Galaxy

Galaxies: Normal and Active

Modern Cosmology

The Origin of the Solar System

Earth and Moon: Bases for Comparative Planetology

Mercury, Venus, and Mars

The Outer Solar System

Meteorites, Asteroids, and Comets

Astrobiology: Life on Other Worlds

Filters

Exam 6: Atoms and Spectra

A neutral atom always contains

At what wavelength would a star radiate the greatest amount of energy if the star has a surface temperature of 10,000 K

A ____________ will be obtained from an observed star's spectrum that has been shifted towards shorter wavelengths as the star is moving ________ us.

The ____ of a gas is a measure of the average speed of the particles (atoms or molecules) in the gas.

Figure 6-1 -A plot of the continuous spectra of five different stars is shown in Figure 6-1. Based on these spectra, which of the stars has the lowest temperature

Isotopes of the same element have the same number of protons.

What holds the electron to the nucleus of an atom

Describe the appearance of each of the three types of spectra described by Kirchhoff's laws. Describe how each of the three types of spectra is formed.

____ is a set of rules that describes how atoms and subatomic particles behave.

Which spectrum is shown above

The process of removing an electron from a stable nucleus is known as

-In the above image of a glowing gas cloud, you mainly see the color pink. Which spectra would you mostly expect from this gas cloud

The Lyman series lines of hydrogen all lie in the infrared.

What would the spectrum of hydrogen look like if we could see into the ultraviolet

When the electrons in an atom are in their lowest possible energy levels, the atom is said to be in its ____________________ state.

The hotter an object, the bluer it appears.

If the radial velocity of a star is positive, the star is moving _________________ you.

Red and blue in redshift and blueshift refer to color.

Part of astrophysics is understanding the history of celestial objects.

Here and Now

A Users Guide to the Sky

Cycles of the Sun and Moon

The Origin of Modern Astronomy

Light and Telescopes

The Sun

The Family of Stars

The Formation and Structure of Stars

The Deaths of Stars

Neutron Stars and Black Holes

The Milky Way Galaxy

Galaxies: Normal and Active

Modern Cosmology

The Origin of the Solar System

Earth and Moon: Bases for Comparative Planetology

Mercury, Venus, and Mars

The Outer Solar System

Meteorites, Asteroids, and Comets

Astrobiology: Life on Other Worlds

Filters

A ____ will be obtained from an observed star's spectrum that has been shifted towards shorter wavelengths as the star is moving us.