Big Bang and Galaxies

Galaxies are composed of (best answer)

• stars
• stars and gas
• stars, dust, and gas
• stars, dust, and gas held together by gravity

The Milky Way Galaxy is a 

• spiral
• lenticular
• elliptical 
• irregular

What type of galaxy is this?

• Spiral
• Elliptical
• Irregular
• Irrational

Tags

NGSS.MS-ESS1-2

What type of galaxy is this?

• Spiral
• Elliptical
• Irregular 
• Irrational

Place these objects in order from smallest to largest.

• Planets, galaxy cluster, solar system, galaxy supercluster, universe, galaxy, star cluster

• Solar system, galaxy supercluster, star cluster, galaxy cluster, planets, galaxy, universe

• Planets, solar system, star cluster, galaxy, galaxy cluster, galaxy supercluster, universe

• Galaxy, star cluster, solar system, galaxy cluster, planets, universe, galaxy supercluster

What type of galaxy is this?

• Spiral
• Elliptical
• Irregular
• Irrational

Tags

NGSS.MS-ESS1-2

What holds a galaxy together?

• pressure

• glue

• gravity

• planets

Tags

NGSS.HS-PS2-4

What is Hubble's Law?

• Hubble's Law is a law of physics that states that the universe is constantly shrinking

• Hubble's Law is a law of physics that states that the further away a galaxy is, the slower it is moving away from us

• Hubble's Law is a law of physics that states that the further away a galaxy is, the faster it is moving away from us

• Hubble's Law is a law of physics that states that the universe is constantly rotating

What is the Doppler Effect?

• A change in frequency or wavelength of a wave due to the relative motion of the source and observer

• The effect of gravity on light
• The effect of temperature on sound waves
• The effect of humidity on radio waves

Tags

NGSS.HS-PS4-1

Red-Shift: Light moving _____

• away from the observer
• towards the observer
• in a circular path
• in a straight line

Tags

NGSS.HS-ESS1-2