Chapter 12 Review

What do astronomers use to divide the night sky into regions?

• luminosity

• constellations

• light-years

• astronomical units

Which does not affect how much light is emitted by a star?

• age

• composition

• energy output

• number of layers

Which of the following do spectroscopes not provide information about?

• core

• temperature

• composition

What is the Hertzsprung-Russell diagram?

• a spectrum of electromagnetic waves

• a scale used to measure distance between stars

• a graph used to classify stars

• blueprints for an orangutan habitat

E

• Chromosphere

• Corona

• Convection Zone

• Photosphere

• Radiative Zone

What happens to the gasses given off during a supernova?

• They become black holes

• They completely evaporate in space

• They become future stars and planets

• They continue to burn

In which part of the solar system is the Milky Way galaxy found?

• in the middle

• at the outer edge

• in one of the spiral arms

• in the wrapper

The Big Bang theory states that

• irregular galaxies are areas of intense star formation

• the universe began from one point billions of years ago

• galaxies are shifting toward the blue end of the spectrum

• our solar system will become a supernova about 3 billion years from now

H

• Prominence

• Flare

• Sunspot

• Solar Wind

• CMI

Which correctly sequences the major steps in star formation?

• Nebula forms. → Fusion starts. → Protostar forms. → Supernova occurs

• Nebula forms. → Nebula collapses. → Protostar forms. → Fusion begins.

• Nebula forms. → Neuron star forms. → Fusion begins. → Outer shell blows off.

• Nebula forms. → Nebula expands. → Outer shell blows off. → Fusion begins.