Unit 9 Review

What are the two main types of star clusters?

• binary and wobbling

• eclipsing and binary

• globular and eclipsing

• open and globular

Which type of star system has the most stars?

• open cluster

• globular cluster

• eclipsing binary

• binary star system

Which statement accurately describes a light-year?

• it is the shape of a galaxy

• it is the distance that light travels in a year

• it is a yearly measurement of light given off by stars

• it is the amount of time it takes light to travel one million kilometers

Which type of star cluster is shown?

• open

• binary

• globular

• eclipsing

Which list correctly names the three types of galaxies?

• binary, open, globular

• elliptical, open, binary

• irregular, spiral, elliptical

• open, irregular, spiral

Which type of star cluster is loose and disorganized?

• binary

• eclipse

• globular

• open

Which type of star cluster forms from tightly packed groups of older stars?

• binary

• eclipse

• globular

• open

Which type of star cluster is shown?

• open

• binary

• globular

• eclipsing

Tags

NGSS.HS-ESS1-3

Which phrase best defines a galaxy?

• tightly packed group of older stars

• large grouping of more than two stars

• loose, disorganized star cluster held together by gravity

• large collection of stars, gas, and dust held together by gravity

Tags

NGSS.MS-ESS1-2

Which feature is used to classify galaxies?

• age

• color

• shape

• size