astro spectroscopy

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

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

• dark

• emission (bright)

• continuous

• invisible

Tags

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

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.

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.

______________ is the energy that can travel through space in the form of waves. 

• telescopes

• electromagnetic spectrum

• observatory

• sound waves

• two of these

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

Which of the following type of electromagnetic radiation has the most energy

• infrared
• ultraviolet
• microwaves
• radiowaves

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-4

Which has the SHORTEST wavelength and, therefore, the highest frequency/most energy

• Radio waves
• Ultraviolet Rays
• Gamma Rays
• X-rays

Tags

NGSS.HS-PS4-1

The _______________ determines the color of visible light. 

• wavelength
• speed
• amplitude
• light

Tags

NGSS.HS-PS4-1