Astronomy Atomic Emission Spectra 1

The analysis of the way matter emits and absorbs radiation is called ___.

• astronomy

• chemistry

• spectroscopy

• atomic theory

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

Spectroscopy can be used to study

• the atmosphere of Mars.

• the age of stars.

• the Moon.

• stellar composition

Tags

NGSS.HS-ESS1-3

NGSS.HS-PS4-3

When electrons of an element reach an "excited" state, ___ lines are produced.

• dark

• emission (bright)

• continuous

• invisible

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NGSS.HS-PS1-2

NGSS.HS-PS4-3

Each element on the periodic table can be identified by its

• classification as a solid, liquid or gas.

• location on the table.

• ability to react to form compounds.

• unique spectral "fingerprint."

Tags

NGSS.HS-PS1-1

Emission spectra emitted by an element (or compound) will produce ___ through a spectroscope.

• bright lines

• a continuous rainbow

• dark lines

• white light

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

NGSS.HS-PS4-4

The spectroscope is a powerful tool used by astronomers to infer the nature of matter.

• True

• False

Tags

NGSS.HS-ESS1-2

Excited hydrogen gas forms a series of distinct bright spectral lines called absorption lines.

• True

• False

Tags

NGSS.HS-PS1-2

NGSS.HS-PS4-3

When an electron changes state it produces a proton.

• True

• False

By passing starlight light through a ___the light is spread out into its component colors.

• spectrograph or spectrometer

• telescope

• prism or diffraction grating

• mirror

Tags

NGSS.HS-PS4-5

If an object like a star is moving away from Earth, the spectral lines are observed to be

• smaller or thinner & red-shifted.

• smaller or thinner & blue-shifted.

• wider or broader & blue-shifted.

• wider or broader & red-shifted.