Stars 2

What is the first stage in stellar evolution?

• Protostar

• Main Sequence Star

• Red Giant Star

• White Dwarf

What type of stars follow the left-hand path in stellar evolution?

• Low Mass Stars

• Supergiants

• High Mass Stars

• Medium Mass Stars

What is the process that occurs in the core of a protostar when it reaches a temperature of 10 million K?

• Hydrogen Fusion

• Nitrogen Fusion

• Helium Fusion

• Carbon Fusion

What keeps the core of a main sequence star hot?

• High pressure

• Gravity

• Energy released from fusion process

• Rapid movement of gases

What type of stars are energized by the fusion of hydrogen atoms?

• White Dwarfs

• Supergiants

• Red Giants

• Main Sequence Stars

What is formed when all the nuclear reactions are over in a small star like the Sun?

• Supergiant

• Neutron Star

• White Dwarf

• Red Giant

What is a rotating neutron star that emits radiation in pulses called?

• Black Hole

• Pulsar

• Supergiant

• White Dwarf

What type of star will become a black hole if its core is denser than the mass of the sun?

• White Dwarf

• Red Giant

• Supergiant

• SuperNova

What can be detected by its effect on surrounding objects and by radiation that escapes around it?

• Black Hole

• Red Giant

• Supergiant

• White Dwarf

What is the final stage in the life of a star that signals its death?

• Red Giant

• Neutron Star

• White Dwarf

• Supernova