Star Systems and Galaxies

What is a binary star system?

• A star system in which two stars linked by their mutual gravity orbit around a central point of mass.

• A group of up to a few thousand stars that were formed from the same giant molecular cloud, and are still loosely gravitationally bound to each other

• A spherical collection of stars that orbits a galactic core as a satellite.

What is a Globular star cluster

• A star system in which two stars linked by their mutual gravity orbit around a central point of mass.

• A spherical collection of stars that orbits a galactic core as a satellite.

• A celestial body moving in an elliptical orbit around a star.

• A fixed luminous point in the night sky that is a large, remote incandescent body like the sun.

what is a type of binary star?

• Secondary

• Comet

• Elliptical

True or false A Binary star revolves around a center mass

• True

• False

Tags

NGSS.HS-ESS1-4

NGSS.HS-PS2-4

Which one is true?

• New Globular clusters form Every year

• The primary star in the binary star system shakes

• The milky way galaxy has no Globular clusters.

How where binary stars formed?

• The fragmentation hypothesis

• The star Hypothesis

• The merged Hypothesis

What is the Fragmentation hypothesis?

• The gas cloud fragments earlier on, due to some instability or cooling/heating effects.

• Every object in space will combust.

• Every object with two parts must break.

Who helped Binary stars get their name?

• Galileo Galilei

• Thomas Edison

• Neal Armstrong

What is a open cluster?

• Formed from the same giant molecular cloud, and are still loosely gravitationally bound to each other.

• Three or more stars tightly bonded together

• 20 or more stars loosely packed in one area

• a star system in which two stars linked by their mutual gravity orbit around a central point of mass

How do scientists believe open clusters are formed?

• gas cloud fragments earlier on, due to some instability or cooling/heating effects

• Densely packed collections of ancient stars. Roughly spherical in shape, they contain hundreds of thousands, and sometimes millions, of stars

• loose collections of stars that have no designated shape.

• A few thousand stars that were formed from the same giant molecular cloud, and are still loosely gravitationally bound to each other