Light and Emission Spectra

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-PS4-3

NGSS.HS-PS4-1

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-PS4-3

A spectroscope may be connected to a ___ to record an object's spectra.

• telescope

• CCD (charged coupled device)

• spectrometer

• spectrograph

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.

Tags

NGSS.HS-PS4-3

Spectral lines that are observed to be narrower & blue-shifted indicates that an object is

• moving away from Earth.

• showing transverse motion.

• moving towards Earth.

• showing radial motion.

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-1

When sunlight is split by a prism or diffraction grating it appears to emit a ___ spectra.

• absorption

• dark-line

• continuous

• bright-line

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-4

Upon closer examination, sunlight (and all stars) actually emit ___ spectra.

• bright-line (or emission)

• absorption (or dark-line)

• continuous

• multiple

Tags

NGSS.HS-PS4-3

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

• astronomy

• chemistry

• spectroscopy

• atomic theory

Tags

NGSS.HS-PS4-3

Spectroscopy can be used to study

• the atmosphere of Mars.

• the age of stars.

• spectroscopes.

• the Moon.

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-5