Stars and Galaxies

A very bright star can seem to be dimmer because it is

• further away

• cooler in temperature

• very close

• shy

The sun appears brighter than other stars because

• it is the largest star in the universe

• it is the hottest star in the universe

• able to radiate more energy than other stars

• is closer to Earth than other stars

Which of the following is not a type of galaxy?

• Irregular

• Triangular

• Spiral

• Elliptical 

_______________ would be the best unit to use to measure the distance between the our sun and Proxima Centauri (our nearest star neighbor).

• Astronomical units

• Light seconds

• Light years

A light year is...

• The speed light travels

• How long it takes light to get to you from the sun

• The distance light can travel in a year

• How many years it takes light to be emitted

What is the name of baby stars?

• Dwarf

• Supergiant

• Protostars

• Nebulas

What is the name of the gas/dust clouds that form stars?

• Nebulas

• Protostars 

• Supernova

• Neutron Star

Tags

NGSS.HS-ESS1-3

If a star is being observed from Earth and it's light has shifted towards the red side of the electromagnetic spectrum it would be...

• Moving towards the Earth

• Moving away from the Earth

• This is a trick question that cannot be answered

• It isn't a star, it is a very large blueberry.

Tags

NGSS.HS-PS4-1

What keeps a star from collapsing from their own gravity?

• The outward pressure from nuclear fusion

• The gravitational pull caused by orbiting planets

• The centrifugal force caused by rapid rotation

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

What does it mean if there a redshift in galaxies? (page 329)

• the galaxies are moving closer together

• the galaxies are moving farther apart

• the stars are changing color

Tags

NGSS.HS-ESS1-2