Stars, Light & Exoplanets

What gases are in the unknown mixture?

• Gas B & Gas D
• Gas C & Gas B
• Gas A & Gas D
• Gas D & Gas C

Tags

NGSS.HS-PS1-3

which elements are present in this star?

• magnesium and calcium

• magnesium and hydrogen

• iron and magnesium

• iron and hydrogen

Tags

NGSS.HS-ESS1-3

How do scientists determine the elements that stars are made of (their composition)?

• By sampling matter on the surface of stars

• By analyzing the gravitational vibrations that stars emit

• Through magnetic testing

• By using spectroscopes to analyze the light that stars emit.

Tags

NGSS.HS-ESS1-2

NGSS.HS-ESS1-3

Spectral lines help scientists to determine the chemical composition of remote astronomical objects.

• True
• False

Tags

NGSS.HS-ESS1-2

Every element has its own unique atomic spectra.

• True
• False

Tags

NGSS.HS-PS1-2

The Sun emits a continuous spectra.

• True
• False

Tags

NGSS.HS-PS4-3

Spectroscopy can help scientists discover habitable exoplanets.

• True
• False

Tags

NGSS.HS-PS4-3

Solar spectra allow astronomers to learn many vital properties of celestial objects including which of the following?

• Chemical composition
• Temperature
• Rotation
• All of these can be determined using solar spectra

Tags

NGSS.HS-PS4-3

NGSS.HS-ESS1-2

Absorption lines create _____ spectral lines on a visible light spectra due to the electrons moving into their _____ state.

• dark; excited
• dark; ground
• bright; excited
• bright; ground

Tags

NGSS.HS-PS1-2

Emission lines create _____ spectral lines on a visible light spectra due to the electrons moving into their _____ state.

• dark; excited
• dark; ground
• bright; excited
• bright; ground

Tags

NGSS.HS-PS1-2