Exam 6: Atoms and Spectra

The H_$\delta$ line has a wavelength of 410.2 nm when observed in the laboratory. If the H_$\delta$ line appears in a stars spectrum at 410.0 nm, what is the radial velocity of the star?

(Multiple Choice)

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Question 61

If a light-emitting object is moving away from you, you observe its wavelengths to be ________ its wavelengths if it were at rest.

(Multiple Choice)

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Question 62

____ has a negative charge and a mass about 1800 times smaller than a proton.

(Multiple Choice)

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Question 63

The H_$\gamma$ line has a wavelength of 434.0 nm when observed in the laboratory. If the H_$\gamma$ line appears in a stars spectrum at 434.5 nm, what is the radial velocity of the star?

(Multiple Choice)

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Question 64

If you move an electron in an atom from a low energy level to a higher energy level within the atom, we say that the atom is

(Multiple Choice)

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Question 65

The number of ____ in the nucleus determines what element the nucleus is.

(Multiple Choice)

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Question 66

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

(Multiple Choice)

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Question 67

The two most abundant elements in the sun are

(Multiple Choice)

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Question 68

The most massive part of the atom is(are) the which has(have) a charge.

(Multiple Choice)

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Question 69

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

(Multiple Choice)

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Question 70

Suppose the laboratory wavelength of a spectral line is 600 nm. In a star it is measured to be 599.4 nm. Is the star moving toward or away from us, relative to the line of sight? How fast is it moving? (Hint: c = 300,000 km/s)

(Multiple Choice)

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Question 71

The nucleus of the hydrogen atom consists of a single neutron.

(True/False)

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Question 72

The radiation emitted from a star has a maximum intensity at a wavelength of 500 nm. What is the temperature of this star?

(Multiple Choice)

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Question 73

A very bright UFO is seen near the moon's orbit. An astronomer takes a spectrum of it and discovers it has a bright line spectrum on a dark background. The earth's population is near panic when the astronomer announces the UFO is

(Multiple Choice)

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Question 74

Which one of the hydrogen atoms below is EMITTING light at a wavelength in the Balmer series?

(Multiple Choice)

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Question 75

The Doppler effect is sensitive only to motion along the line of sight.

(True/False)

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Question 76

Diagram 6-1 -In Diagram 6-1, which of the transitions would absorb a photon with the greatest energy?

(Multiple Choice)

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Question 77

An atom is ionized if one of its electrons jumps to a higher energy level in the atom.

(True/False)

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Question 78

The neutral hydrogen atom consists of

(Multiple Choice)

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Question 79

The Doppler effect states that the motion of any object can

(Multiple Choice)

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Question 80

Showing 61 - 80 of 82

The H_$\delta$ line has a wavelength of 410.2 nm when observed in the laboratory. If the H_$\delta$ line appears in a stars spectrum at 410.0 nm, what is the radial velocity of the star?

If a light-emitting object is moving away from you, you observe its wavelengths to be ________ its wavelengths if it were at rest.

____ has a negative charge and a mass about 1800 times smaller than a proton.

The H_$\gamma$ line has a wavelength of 434.0 nm when observed in the laboratory. If the H_$\gamma$ line appears in a stars spectrum at 434.5 nm, what is the radial velocity of the star?

If you move an electron in an atom from a low energy level to a higher energy level within the atom, we say that the atom is

The number of ____ in the nucleus determines what element the nucleus is.

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

The two most abundant elements in the sun are

The most massive part of the atom is(are) the which has(have) a charge.

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

Suppose the laboratory wavelength of a spectral line is 600 nm. In a star it is measured to be 599.4 nm. Is the star moving toward or away from us, relative to the line of sight? How fast is it moving? (Hint: c = 300,000 km/s)

The nucleus of the hydrogen atom consists of a single neutron.

The radiation emitted from a star has a maximum intensity at a wavelength of 500 nm. What is the temperature of this star?

A very bright UFO is seen near the moon's orbit. An astronomer takes a spectrum of it and discovers it has a bright line spectrum on a dark background. The earth's population is near panic when the astronomer announces the UFO is

Which one of the hydrogen atoms below is EMITTING light at a wavelength in the Balmer series?

The Doppler effect is sensitive only to motion along the line of sight.

Diagram 6-1 -In Diagram 6-1, which of the transitions would absorb a photon with the greatest energy?

An atom is ionized if one of its electrons jumps to a higher energy level in the atom.

The neutral hydrogen atom consists of

The Doppler effect states that the motion of any object can

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

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Exam 6: Atoms and Spectra

The H δ\deltaδ line has a wavelength of 410.2 nm when observed in the laboratory. If the H δ\deltaδ line appears in a stars spectrum at 410.0 nm, what is the radial velocity of the star?

If a light-emitting object is moving away from you, you observe its wavelengths to be ________ its wavelengths if it were at rest.

____ has a negative charge and a mass about 1800 times smaller than a proton.

The H γ\gammaγ line has a wavelength of 434.0 nm when observed in the laboratory. If the H γ\gammaγ line appears in a stars spectrum at 434.5 nm, what is the radial velocity of the star?

If you move an electron in an atom from a low energy level to a higher energy level within the atom, we say that the atom is

The number of ____ in the nucleus determines what element the nucleus is.

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

The two most abundant elements in the sun are

The most massive part of the atom is(are) the ____ which has(have) a ____ charge.

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

Suppose the laboratory wavelength of a spectral line is 600 nm. In a star it is measured to be 599.4 nm. Is the star moving toward or away from us, relative to the line of sight? How fast is it moving? (Hint: c = 300,000 km/s)

The nucleus of the hydrogen atom consists of a single neutron.

The radiation emitted from a star has a maximum intensity at a wavelength of 500 nm. What is the temperature of this star?

A very bright UFO is seen near the moon's orbit. An astronomer takes a spectrum of it and discovers it has a bright line spectrum on a dark background. The earth's population is near panic when the astronomer announces the UFO is

Which one of the hydrogen atoms below is EMITTING light at a wavelength in the Balmer series?

The Doppler effect is sensitive only to motion along the line of sight.

Diagram 6-1 -In Diagram 6-1, which of the transitions would absorb a photon with the greatest energy?

An atom is ionized if one of its electrons jumps to a higher energy level in the atom.

The neutral hydrogen atom consists of

The Doppler effect states that the motion of any object can

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

The H_$\delta$ line has a wavelength of 410.2 nm when observed in the laboratory. If the H_$\delta$ line appears in a stars spectrum at 410.0 nm, what is the radial velocity of the star?

The H_$\gamma$ line has a wavelength of 434.0 nm when observed in the laboratory. If the H_$\gamma$ line appears in a stars spectrum at 434.5 nm, what is the radial velocity of the star?

The most massive part of the atom is(are) the which has(have) a charge.