37 CFU

What is an emission spectrum?

• A continuous range of all possible wavelengths of light

• A set of specific wavelengths of light emitted by atoms or molecules

• The absorption of all wavelengths of light

• The reflection of light from a surface

Tags

NGSS.HS-PS4-3

NGSS.HS-PS1-1

What causes the emission of light in an atom?

• Electrons moving to higher energy levels

• Electrons moving to lower energy levels

• Protons moving between energy levels

• Neutrons leaving the nucleus

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

Which equation relates the energy of a photon to its wavelength?

Tags

NGSS.HS-PS4-1

• Frequency of light

• Energy of the photon

• Wavelength of light

• Speed of light

Tags

NGSS.HS-PS4-1

When an electron falls from a higher energy level to a lower one, what is emitted?

• A neutron

• A photon

• A proton

• An electron

Which of the following best describes a line spectrum?

• A spectrum with all colors blended together

• A spectrum with only a few specific colors or lines

• A spectrum with no colors

• A spectrum with only red and blue colors

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-4

What is the main reason each element has a unique emission spectrum?

• Each element has a different number of protons

• Each element has a unique arrangement of electrons and energy levels

• Each element has a different mass

• Each element has a different number of neutrons

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

• Planck’s constant

• Speed of light

• Avogadro’s number

• Boltzmann constant

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

• Charge of an electron

• Speed of light

• Specific heat

• Concentration

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

• The atom absorbs energy

• The atom emits energy as light

• The atom becomes an ion

• The atom splits

Tags

NGSS.HS-PS4-3