Spectral Analysis Quiz

What is the relationship between wavelength and frequency?

• They are directly proportional

• It depends on the color of the light

• They are inversely proportional

• There is no relationship between them

Which color has the longest wavelength in the visible spectrum?

• Red

• Blue

• Green

• Yellow

What is the relationship between frequency and energy?

• It depends on the color of the light

• They are directly proportional

• There is no relationship between them

• They are inversely proportional

Do all elements produce the same number of colors?

• Yes, because they have the same energy levels

• No, because they have different energy levels

• No, because they have different numbers of electrons

• Yes, because they have the same number of electrons

Which element is likely to produce more color lines?

• The one with less electrons

• It depends on the wavelength

• The one with more electrons

• It depends on the energy levels

How can astronomers measure and express the temperature of stars?

• By calculating the frequency and energy of colors

• By observing the colors of the stars

• By analyzing the flame test results

• By comparing the colors produced by spectral tubes

What is the color index of a star?

• The temperature of the star in Kelvin

• The number of colors produced by the star

• The energy of the star's spectral lines

• The difference in magnitudes measured at any two wavelengths

What are spectral lines?

• Dark or bright lines in a spectrum that correspond to specific wavelengths of light emitted or absorbed by an atom or molecule.

• Lines that indicate the density of a liquid

• Lines that indicate the pressure of a gas

• Lines that indicate the temperature of a star

What is emission spectra?

• The emission spectra is the unique pattern of light emitted by an atom or molecule when it transitions from a higher energy state to a lower energy state.

• The emission spectra is the process of converting light energy into heat energy by an atom or molecule.

• The emission spectra is the unique pattern of light emitted by an atom or molecule when it transitions from a lower energy state to a higher energy state.

• The emission spectra is the absorption of light by an atom or molecule when it transitions from a higher energy state to a lower energy state.

How are spectral lines formed?

• Atoms or molecules absorb or emit light at specific wavelengths.

• Spectral lines are formed by the reflection of light off of objects.

• Spectral lines are formed by the refraction of light through a prism.

• Spectral lines are formed by the interference of light waves.