Spectroscopy

What is the target of learning in the topic of Spectroscopy as mentioned in the image?

• To understand the different colors in the spectrum

• To explain the relation between emission and absorption lines and describe what we can learn from those lines

• To learn about the history of spectroscopy

• To identify the elements present in the sun

Tags

NGSS.HS-PS4-3

What is a spectroscope?

• A device that combines different frequencies of light into a single beam.

• A device that measures the intensity of light.

• A device that splits a beam of radiation into its component frequencies.

• A device that generates light.

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NGSS.HS-ESS1-2

What does a spectroscope do with light for detailed study?

• It amplifies light for better visibility.

• It splits light into its component parts.

• It changes the direction of light without splitting it.

• It filters out all colors except one.

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NGSS.HS-ESS1-2

Where are the component frequencies of light delivered in a spectroscope?

• To a power source.

• To a mirror for reflection.

• To a screen or detector for detailed study.

• Back to the light source.

What do many hot objects emit?

• A continuous spectrum of radiation containing light of only a few wavelengths.

• A continuous spectrum of radiation containing light of all wavelengths.

• An emission spectrum consisting of only a few well-defined emission lines.

• An absorption spectrum with missing frequencies.

Tags

NGSS.HS-PS4-4

What does a hot gas produce?

• A continuous spectrum of radiation containing light of all wavelengths.

• An absorption spectrum with missing frequencies.

• An emission spectrum consisting of only a few well-defined emission lines of specific frequencies or colors.

• A spectrum with only ultraviolet light.

What happens when a continuous beam of radiation passes through cool gas?

• It produces a continuous spectrum without any changes.

• It produces an emission spectrum with additional frequencies.

• It produces absorption lines at precisely the same frequencies as are present in the gas's emission spectrum.

• It disrupts the emission spectrum of the gas completely.

Tags

NGSS.HS-PS4-4

What are emission lines?

• Multiple frequencies emitted by any atom.

• Single frequencies emitted by specific atoms.

• Continuous spectrum emitted by heated objects.

• Patterns created by prisms.

Tags

NGSS.HS-PS4-3

What is the difference between the two setups shown in the diagrams?

• One uses a hot bulb and the other uses heated hydrogen gas.

• One uses a prism and the other uses a lens.

• One produces a continuous spectrum and the other a line spectrum.

• One shows emission lines and the other shows absorption lines.

Tags

NGSS.HS-PS4-5

What can an absorption spectrum be used to identify?

• The age of a star

• The elements present in a substance

• The temperature of a substance

• The density of a substance

Tags

NGSS.HS-PS4-4