Chapter 2: Light and Telescopes

Pregunta 1 de 19

1

A blackbody emits all its radiation at a single frequency.

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FALSO

Explicación

Pregunta 2 de 19

1

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

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Explicación

Pregunta 3 de 19

1

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

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VERDADERO
FALSO

Explicación

Pregunta 4 de 19

1

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.

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Explicación

Pregunta 5 de 19

1

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

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Explicación

Pregunta 6 de 19

1

As a rule, larger telescopes can detect fainter objects.

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VERDADERO
FALSO

Explicación

Pregunta 7 de 19

1

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

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VERDADERO
FALSO

Explicación

Pregunta 8 de 19

1

Rellena los espacios en blanco para completar el texto.

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

Explicación

Pregunta 9 de 19

1

Selecciona la opción correcta de los menús desplegables para completar el texto.

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.

Explicación

Pregunta 10 de 19

1

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

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frequency

crests

Explicación

Pregunta 11 de 19

1

Rellena el espacio en blanco para completar el texto.

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

Explicación

Pregunta 12 de 19

1

Rellena el espacio en blanco para completar el texto.

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

Explicación

Pregunta 13 de 19

1

Selecciona la opción correcta del menú desplegable para completar el texto.

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

Explicación

Pregunta 14 de 19

1

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

Explicación

Pregunta 15 de 19

1

Rellena el espacio en blanco para completar el texto.

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

Explicación

Pregunta 16 de 19

1

Rellena los espacios en blanco para completar el texto.

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.

Explicación

Pregunta 17 de 19

1

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 ❌.

Arrastra y suelta para completar el texto.

blackbody curve

intensity

frequency

temperature

Planck curve

Explicación

Pregunta 18 de 19

1

Selecciona la opción correcta del menú desplegable para completar el texto.

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.

Explicación

Pregunta 19 de 19

1

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

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spectrum

radiation

wavelengths

	Creado por Rachelle Sappington hace alrededor de 7 años

The Universe at a Glance

Chapter 2: Light and Telescopes

Chapter 2: Light and Telescopes

Pregunta 1 de 19

A blackbody emits all its radiation at a single frequency.

Selecciona uno de los siguientes:

Explicación

Pregunta 2 de 19

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

Selecciona uno de los siguientes:

Explicación

Pregunta 3 de 19

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

Selecciona uno de los siguientes:

Explicación

Pregunta 4 de 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.

Selecciona uno de los siguientes:

Explicación

Pregunta 5 de 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.

Selecciona uno de los siguientes:

Explicación

Pregunta 6 de 19

As a rule, larger telescopes can detect fainter objects.

Selecciona uno de los siguientes:

Explicación

Pregunta 7 de 19

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

Selecciona uno de los siguientes:

Explicación

Pregunta 8 de 19

Rellena los espacios en blanco para completar el texto.

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

Explicación

Pregunta 9 de 19

Selecciona la opción correcta de los menús desplegables para completar el texto.

Explicación

Pregunta 10 de 19

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

Arrastra y suelta para completar el texto.

Explicación

Pregunta 11 de 19

Rellena el espacio en blanco para completar el texto.

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

Explicación

Pregunta 12 de 19

Rellena el espacio en blanco para completar el texto.

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

Explicación

Pregunta 13 de 19

Selecciona la opción correcta del menú desplegable para completar el texto.

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

Explicación

Pregunta 14 de 19

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

Arrastra y suelta para completar el texto.

Explicación

Pregunta 15 de 19

Rellena el espacio en blanco para completar el texto.

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

Explicación

Pregunta 16 de 19

Rellena los espacios en blanco para completar el texto.

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.

Explicación

Pregunta 17 de 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 ❌.

Arrastra y suelta para completar el texto.

Explicación

Pregunta 18 de 19

Selecciona la opción correcta del menú desplegable para completar el texto.

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.

Explicación

Pregunta 19 de 19

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

Arrastra y suelta para completar el texto.

Explicación

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.