Astronomy Quiz 1

What is the term for the brightness of stars?

• Absolute magnitude

• Apparent magnitude

• Magnitude

• Nebula

How do we describe how bright a star appears to us?

• Absolute magnitude

• Apparent magnitude

• Magnitude

• Neutron star

What is the true brightness of a star called?

• Absolute magnitude

• Apparent magnitude

• Neutron star

• Supernova

Which term describes a neutron star that spins rapidly on its axis?

• Nova

• Supernova

• Pulsar

• Nebula

What may occur when a supergiant collapses to a very dense core?

• Neutron star

• Supernova

• Nova

• Nebula

What is a cloud of dust, gases, and debris called?

• Nova

• Nebula

• Supernova

• Pulsar

What is it called when an existing star flares and becomes brighter?

• Supernova

• Neutron star

• Nova

• Pulsar

What is the death explosion of a star known as?

• Nova

• Supernova

• Neutron star

• Pulsar

Which measurements allows astronomers to compare the brightness of stars?

• parallax
• red shift
• absolute magnitude
• apparent magnitude

According to the new system of classifying star brightness, what does a smaller magnitude number indicate?

• The star is dimmer.

• The star is of medium brightness.

• The star is brighter.

• The star's brightness cannot be determined.