Advanced Stellar Evo ST 2020

Where are stars born?

• Interstellar cloud

• In a planet

• On Mars

• They spawn from another star

______ fusion in a star only starts at main sequence stage.

• Physical

• Hydrogen

• Berylium

• Copper

What is an interstellar cloud made of? *You guys must select all those that apply to get the question correct

• Plasma

• Gases

• Space Dust

• Water vapour

What are failed PMS stars (lesser than 0.8 Solar Masses and unable to move on to main sequence stage) also known as?

• Brown Dwarf

• Black Dwarf

• White Dwarf

• Red Dwarf

Which nuclear fusion process in stars above 1.4 Solar Masses? *HINT: Look at the diagram above

• Proton-Proton Chain

• Carbon-Nitrogen-Oxygen (CNO) cycle

• Berylium-Magnesium Fusion

• Uranium-238 Fusion

What happens when a white dwarf heats up and suddenly fuses carbon?

• It goes supernova (type 1a)

• It goes supernova (type 2)

• It turns into a black dwarf

• It turns into a black hole

How dense are neutron stars?

• Very light

• Light

• DENSE

• VERY DENSE

• SUPER DUPER DENSE

Where are red supergiants located in the Hertzsprung-Russell Diagram?

• Top left

• Top right

• Centre

• Bottom left

• Bottom right

Refer to the diagram. Which letter corresponds to the red giant stage?

• A

• B

• C

• D

What type of nebula is this?

• Emission nebula

• Dark nebula

• Planetary Nebula

• Protoplanetary Nebula