MOD Stars/HR Diagrams/Measuring the Sky

What is a star?

• A sphere of plasma held together by its own gravity undergoing nuclear fusion

• A sphere of burning gas

Tags

NGSS.HS-ESS1-1

What causes stars to perform nuclear fusion?

• Extreme gravitational force

• Chemical reactions between gases

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

What is our Sun's name?

• Billy

• Sol

What is a binary star system?

• A star system with one star

• A star system with two stars

Which is not required for stars to form?

• Heat

• Millions of years

What is the heaviest element that stars can fuse?

• Iron

• Gold

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

Which layer of a star do we see?

• Photosphere

• Corona

Which layer of the Sun can only be seen during a total solar eclipse?

• Convective zone

• Corona

Tags

NGSS.MS-ESS1-1

What can happen when high mass stars die?

• They become neutron stars

• They become blackholes

• They become a white dwarf

• A or B

A star's apparent brightness is based on what?

• Its absolute brightness and its distance from Earth

• Its absolute brightness and its color