Unit 7 Review and Practice

What is an exploding, high mass star called?

• black hole

• Milky Way

• supernova

• solar system

After a supernova, if the core is massive enough it can collapse into a...

• Black Hole
• White Dwarf
• Brown Dwarf
• Black Dwarf

All H-R diagrams show what about stars?

• size and mass
• brightness and temperature
• name and location
• fusion of elements

What is a large celestial body that is composed of gas and emits energy in the form of light and heat?

• Nebula

• Star

• Galaxy

• Planet

Tags

NGSS.HS-ESS1-1

The most common elements stars are made of...

• Iron & Carbon
• Gold & Zinc
• Hydrogen & Helium
• Fire and Ice

Tags

NGSS.HS-ESS1-3

A star is born when it begins...

• nuclear fusion
• nuclear abrasion
• chemical reaction
• nuclear fission

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

Our sun and most stars are in what stage of their life cycle?

• Planetary Nebula
• White Dwarfs
• Main Sequence
• Giants

Tags

NGSS.HS-ESS1-1

The main element used to fuel a star during the majority of its life is:

• Helium
• Iron
• Light
• Hydrogen

Tags

NGSS.HS-ESS1-1

On the H-R diagram the white dwarf stars are located where?

• top right
• top left
• bottom left
• bottom right

A star in the center of the H-R diagram would have what kind of luminosity?

• no stars are in the center
• dim
• medium
• bright