Exit Check 8.5: Spectroscopy

8.5.1 The analysis of the way matter emits and absorbs radiation is called (a)   .

• astronomy
• chemistry
• atomic theory
• spectroscopy

Answer explanation

This question links to success criteria 8.5.1: I can use the unique atomic emission and absorption spectra to identify different elements.

If you got it correct place a check mark in the question results section. If you got it incorrect place an X in that section. If this was a redemption question, cross out the one X and replace it with a check mark

8.5.1 A scientist has a sample of an unknown gas. To identify it, she observes which wavelengths of light are absorbed by it. Below is the absorption spectra for the unknown gas. Which element is the unknown gas? (a)  

• Helium
• Oxygen
• Neon
• Xenon

Answer explanation

This question links to success criteria 8.5.1: I can use the unique atomic emission and absorption spectra to identify different elements.

If you got it correct place a check mark in the question results section. If you got it incorrect place an X in that section. If this was a redemption question, cross out the one X and replace it with a check mark

Tags

NGSS.HS-PS4-3

8.5.1

A scientist has a sample of an unknown gas. In order to identify the gas, he looks at the spectrum of visible light emitted from it when it is heated. This is shown in the figure. Which of the elements is the gas?

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Answer explanation

This question links to success criteria 8.5.1: I can use the unique atomic emission and absorption spectra to identify different elements.

If you got it correct place a check mark in the question results section. If you got it incorrect place an X in that section. If this was a redemption question, cross out the one X and replace it with a check mark

Tags

NGSS.HS-PS1-1

NGSS.HS-PS4-1

8.5.1 A scientist has a sample of an unknown gas. In order to identify the gas, she looks at the spectrum of visible light emitted from it when it is heated. This is shown in the figure. Which of the three elements is the unknown gas? (a)  

• Hydrogen
• Helium
• Oxygen
• None of the above

Answer explanation

This question links to success criteria 8.5.1: I can use the unique atomic emission and absorption spectra to identify different elements.

If you got it correct place a check mark in the question results section. If you got it incorrect place an X in that section. If this was a redemption question, cross out the one X and replace it with a check mark

Tags

NGSS.HS-PS4-3

NGSS.HS-PS1-1

8.5.1 Which section of the spectrum is the ONLY one we can see with our eyes? (a)  

• X-rays
• Visible Light
• Gamma Rays
• Ultraviolet Rays

Answer explanation

This question links to success criteria 8.5.1: I can use the unique atomic emission and absorption spectra to identify different elements.

If you got it correct place a check mark in the question results section. If you got it incorrect place an X in that section. If this was a redemption question, cross out the one X and replace it with a check mark

8.5.2

Predict: Which of the following provides the best explanation for why some stars have heavier materials than others?

• Older stars have been fusing elements longer and have run low on hydrogen so have been fusing heavier elements

• Older stars have been working longer and have earned enough money to have nice things

• Younger stars have more potential energy stored so they can have heavier materials

• Younger stars are stronger so they can carry heavier materials

Answer explanation

This question links to success criteria: I can determine which elements are found in an object by examining the combined emission spectrum.

If you got it correct place a check mark in the question results section. If you got it incorrect place an X in that section. If this was a redemption question, cross out the one X and replace it with a check mark

Tags

NGSS.HS-ESS1-3

NGSS.HS-PS1-8

8.5.2 Which spectrum is produced when a cool thin gas, such as a planet's atmosphere, is illuminated and then glows? (a)  

• Absorption spectrum
• Emission Spectrum
• Electromagnetic Spectrum
• Internet Spectrum

Answer explanation

This question links to success criteria 8.5.2: I can determine which elements are found in an object by examining the combined emission spectrum.

If you got it correct place a check mark in the question results section. If you got it incorrect place an X in that section. If this was a redemption question, cross out the one X and replace it with a check mark

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-4

8.5.2

Use the image of the absorption spectrum in a star's outer atmosphere to determine which element or elements are present in its atmosphere? Mark all that apply

• Hydrogen

• Helium

• Carbon

• Nitrogen

• Oxygen

Answer explanation

This question links to success criteria 8.5.2: I can determine which elements are found in an object by examining the combined emission spectrum.

If you got it correct place a check mark in the question results section. If you got it incorrect place an X in that section. If this was a redemption question, cross out the one X and replace it with a check mark

Tags

NGSS.HS-ESS1-3

NGSS.HS-ESS1-2

8.5.2

Identify the elements in the unknown mixture. Mark all that are present.

• A

• B

• C

• D

Answer explanation

This question links to success criteria 8.5.2: I can determine which elements are found in an object by examining the combined emission spectrum.

If you got it correct place a check mark in the question results section. If you got it incorrect place an X in that section. If this was a redemption question, cross out the one X and replace it with a check mark

Tags

NGSS.MS-PS1-1

8.5.1 The incomplete rainbows of light made by heating up a low density gas are called (a)  

• the absorption spectrum
• the continuous spectrum
• the visible spectrum
• the emission spectrum

Answer explanation

This question links to success criteria 8.5.1 : I can use the unique atomic emission and absorption spectra to identify different elements.

If you got it correct place a check mark in the question results section. If you got it incorrect place an X in that section. If this was a redemption question, cross out the one X and replace it with a check mark

Tags

NGSS.HS-PS4-4