The force of gravity is greatest when...

• The masses are large and far apart

• the masses are small and close together

• the masses are large and the objects are close

• the masses are small and the objects are far

Where does our sun fall on a H-R Diagram

• Main Sequence

• white dwarfs

• giants

• supergiants

in the sun, the radiative zone moves __________ while the convective zone moves _______

• energy and matter; energy only

• nothing

• matter only; energy and matter

• energy only; energy and matter

True or False: The moon gives off its own light

• true

• false

What state of matter is the most dense?

• solid

• liquid

• gas

• plasma

which state of matter is the least dense?

• solid

• liquid

• gas

• plasma

The red shift of galaxies suggests the universe is....

• stagnant

• Expanding

• reversing

• contracting

How do scientists figure out what starts are made of and their temperature?

• by analyzing the spectra of the light that stars emit

• by analyzing the vibrations that starts emit

• my sampling matter on the surface of stars

• through magnetic testing

When the earth, moon and sun are at right angles, we have a...

• neap tide

• low tide

• spring tide

• high tide

What color is the moon during a lunar eclipse?

• blue

• green

• yellow

• red