Chapter 2: Light and Telescopes

Frage 1 von 19

1

A blackbody emits all its radiation at a single frequency.

Wähle eins der folgenden:

WAHR
FALSCH

Erklärung

Frage 2 von 19

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Earth's atmosphere is transparent to all forms of electromagnetic radiation.

Wähle eins der folgenden:

WAHR
FALSCH

Erklärung

Frage 3 von 19

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The peak of an object's emitted radiation occurs at a frequency determined by the object's temperature.

Wähle eins der folgenden:

WAHR
FALSCH

Erklärung

Frage 4 von 19

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Imagine an emission spectrum produced by a container of hydrogen gas. Changing the amount of hydrogen in the container will change the colors of the lines in the spectrum.

Wähle eins der folgenden:

WAHR
FALSCH

Erklärung

Frage 5 von 19

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The wavelengths of the emission lines produced by an element are different from the wavelengths of the absorption lines produced by the same element.

Wähle eins der folgenden:

WAHR
FALSCH

Erklärung

Frage 6 von 19

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As a rule, larger telescopes can detect fainter objects.

Wähle eins der folgenden:

WAHR
FALSCH

Erklärung

Frage 7 von 19

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An object having a temperature of 300 K would be best observed with an infrared telescope.

Wähle eins der folgenden:

WAHR
FALSCH

Erklärung

Frage 8 von 19

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Visible light is a particular type of radiation and travels through space in the form of a .

Erklärung

Frage 9 von 19

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Wähle von der Dropdown-Liste, um den Text zu vervollständigen.

A ( wave, period, wavelength, amplitude ) is characterized by its ( wave, period, wavelength, amplitude ), the length of time taken for one complete cycle; its ( wave, period, wavelength, amplitude ), the distance between successive wave crests; and its ( wave, period, wavelength, amplitude ), which measures the size of the disturbance associated with the wave.

Erklärung

Frage 10 von 19

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A wave's ❌ counts the number of wave ❌ passing a given point in one second.

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frequency

crests

Erklärung

Frage 11 von 19

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A beam of white light is bent, or , as it passes through a prism.

Erklärung

Frage 12 von 19

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Different frequencies of light are refracted by different amounts, splitting light into its component colors: the spectrum.

Erklärung

Frage 13 von 19

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Wähle von der Aufklappliste, um den Text zu vervollständigen.

The color of visible light indicates its wavelength: red light has a ( longer, shorter ) wavelength than blue light.

Erklärung

Frage 14 von 19

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The entire ❌ spectrum consists of (in order of increasing frequency) ❌, ❌, ❌, ❌, ❌, and ❌.

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electromagnetic

radio waves

infrared radiation

visible light

ultraviolet radiation

X-rays

gamma rays

Erklärung

Frage 15 von 19

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The of an object is a measure of the speed of its component particles.

Erklärung

Frage 16 von 19

1

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The intensity of radiation of different frequencies emitted by a hot object has a characteristic distribution, called a , that depends only on the object's temperature.

Erklärung

Frage 17 von 19

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A ❌ is the characteristic way in which the ❌ of radiation emitted by a hot object depends on ❌. The frequency at which the emitted intensity is highest is an indication of the ❌ of the radiating object. Also referred to as the ❌.

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blackbody curve

intensity

frequency

temperature

Planck curve

Erklärung

Frage 18 von 19

1

Wähle von der Aufklappliste, um den Text zu vervollständigen.

A ( telescope, spectroscope, interferometer ) is a device for splitting a beam of radiation into its component frequencies and displaying them on a screen or detector for detailed study.

Erklärung

Frage 19 von 19

1

Many hot objects emit a continuous ❌ of ❌, containing light of all ❌.

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spectrum

radiation

wavelengths

	Erstellt von Rachelle Sappington vor etwa 7 Jahre

The Universe at a Glance

Chapter 2: Light and Telescopes

Frage 1 von 19

A blackbody emits all its radiation at a single frequency.

Wähle eins der folgenden:

Erklärung

Frage 2 von 19

Earth's atmosphere is transparent to all forms of electromagnetic radiation.

Wähle eins der folgenden:

Erklärung

Frage 3 von 19

The peak of an object's emitted radiation occurs at a frequency determined by the object's temperature.

Wähle eins der folgenden:

Erklärung

Frage 4 von 19

Imagine an emission spectrum produced by a container of hydrogen gas. Changing the amount of hydrogen in the container will change the colors of the lines in the spectrum.

Wähle eins der folgenden:

Erklärung

Frage 5 von 19

The wavelengths of the emission lines produced by an element are different from the wavelengths of the absorption lines produced by the same element.

Wähle eins der folgenden:

Erklärung

Frage 6 von 19

As a rule, larger telescopes can detect fainter objects.

Wähle eins der folgenden:

Erklärung

Frage 7 von 19

An object having a temperature of 300 K would be best observed with an infrared telescope.

Wähle eins der folgenden:

Erklärung

Frage 8 von 19

Fülle die Lücken, um den Text zu vervollständigen.

Visible light is a particular type of radiation and travels through space in the form of a .

Erklärung

Frage 9 von 19

Wähle von der Dropdown-Liste, um den Text zu vervollständigen.

Erklärung

Frage 10 von 19

A wave's ❌ counts the number of wave ❌ passing a given point in one second.

Klicke und ziehe, um den Text zu vervollständigen.

Erklärung

Frage 11 von 19

Fülle die Lücke, um den Text zu vervollständigen

A beam of white light is bent, or , as it passes through a prism.

Erklärung

Frage 12 von 19

Fülle die Lücke, um den Text zu vervollständigen

Different frequencies of light are refracted by different amounts, splitting light into its component colors: the spectrum.

Erklärung

Frage 13 von 19

Wähle von der Aufklappliste, um den Text zu vervollständigen.

The color of visible light indicates its wavelength: red light has a longer shorter( longer, shorter ) wavelength than blue light.

Erklärung

Frage 14 von 19

The entire ❌ spectrum consists of (in order of increasing frequency) ❌, ❌, ❌, ❌, ❌, and ❌.

Klicke und ziehe, um den Text zu vervollständigen.

Erklärung

Frage 15 von 19

Fülle die Lücke, um den Text zu vervollständigen

The of an object is a measure of the speed of its component particles.

Erklärung

Frage 16 von 19

Fülle die Lücken, um den Text zu vervollständigen.

The intensity of radiation of different frequencies emitted by a hot object has a characteristic distribution, called a , that depends only on the object's temperature.

Erklärung

Frage 17 von 19

A ❌ is the characteristic way in which the ❌ of radiation emitted by a hot object depends on ❌. The frequency at which the emitted intensity is highest is an indication of the ❌ of the radiating object. Also referred to as the ❌.

Klicke und ziehe, um den Text zu vervollständigen.

Erklärung

Frage 18 von 19

Wähle von der Aufklappliste, um den Text zu vervollständigen.

A telescope spectroscope interferometer( telescope, spectroscope, interferometer ) is a device for splitting a beam of radiation into its component frequencies and displaying them on a screen or detector for detailed study.

Erklärung

Frage 19 von 19

Many hot objects emit a continuous ❌ of ❌, containing light of all ❌.

Klicke und ziehe, um den Text zu vervollständigen.

Erklärung

The color of visible light indicates its wavelength: red light has a ( longer, shorter ) wavelength than blue light.

A ( telescope, spectroscope, interferometer ) is a device for splitting a beam of radiation into its component frequencies and displaying them on a screen or detector for detailed study.