Astronomy unit

A star's brightness is directly dependent on the star's what?

• The size of the star- the smallest stars are the brightest
• The size of the star- the biggest stars are the brightest
• Temperature of the star- the hottest stars are the brightest the star will be
• The age of the star- the youngest stars are the LEAST bright

Ultraviolet, Infrared, & visible light are examples of __________ being emitted by our Sun.

• radiation
• gamma rays
• gravity

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

 Light years are most helpful to scientists when they are measuring what?

• The speed of light
• The distances between objects in space
• The life cycle of our Sun
• The speed of a planet's orbit around the Sun

Tags

NGSS.MS-ESS1-3

Planets closer to the sun have a ___________ gravitational attraction along with a ___________ revolution speed when compared to outer planets. 

• weaker, slower
• weaker, faster
• stronger, faster
• stronger, slower

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Galaxies are classified according to their _____________

• size
• temperature
• shape
• planets

Our universe is constantly __________________ because galaxies are moving ______________ each other.

• shrinking, towards
• rotating, around
• growing, away from

Tags

NGSS.HS-ESS1-2

According to the HR Diagram, stars that get hotter as they get brighter are what type of stars?

• super giants
• white dwarf
• main sequence
• giants

What is created when hydrogen atoms are pulled together by gravity in a cloud of dust & gases?

• a black hole
• a star
• a planet
• supernova

How long does it take Earth to revolve around the Sun one time?

• 1 day
• 1 year
• 1 month
• 27 days

How long does it take Earth to rotate on its axis one time?

• 1 day
• 1 year
• 1 month
• 27 days