Review #4

Which zone of the Sun moves energy through radiation?

• convective

• photosphere

• radioactive

• corona

What layer of the Sun's atmosphere is above the chromosphere?

• corona

• stratosphere

• photosphere

• troposphere

_____ is the combining of light weight nuclei into heavier nuclei, which gives off energy that fuels the sun.

• radiation

• fusion

• division

• fission

What is the Sun's average density similar to?

• the density of water

• the density of the entire solar system

• the density of the rocky planets

• the density of the gas giant planets

The lowest layer of the Sun's atmosphere is called the

• lithosphere

• photosphere

• chromosphere

• asthenosphere

A(n) ________ is visible light arranged according to wavelength.

• emission spectrum

• solar flare

• spectrum

• aurora

From Earth, stars appear to shift in position, which is called _____.

• binary

• apparent magnitude

• parallax

• circumpolar

What causes the wavelength of a star's spectral lines to shift?

• the composition of the star

• the apparent magnitude of the star

• the temperature of the star

• motion between the star and the observer

What are two stars that orbit a common center of mass called?

• seasonal

• a binary

• circumpolar

• a cluster

The difference of two star's spectra is due to the difference of their ______.

• apparent magnitude

• composition

• temperature

• luminosity