Like this study set? Create a free account to save it.

Sign up for an account

Already have a Quizlet account? .

Create an account


The study of the moon, stars, and other objects in space


The spinining of Earth on its axis


The imaginary line that passes through Earth's center and the North and South pole


A path


The movement of one object around another


A system of organizing time that defines the beginning, length, and divisions of year


The day when the sun is fartherest north or south of the equator


When the Earth is titled neither hemisphere is tilted or away from the sun/means "equal nights"


The different shapes of the moon you see from Earth


The partial blocking or total blocking of one object in space by another

Solar Eclipse

When the moon passes directly between Earth and the sun, blocking sunlight from Earth

Lunar Eclipse

Earth blocks sunlight from reaching the moon


The rise and fall of ocean water that occurs every 12.5 hours or so

Spring Tide

The tide with the greatest difference between consecutive low and high tides

Neap Tide

the tide with the least difference between consecutive low and high tides


A device built to observe distant objectws by making them appear closer


Large round pitts


Chunks of rock or dust from space


Dark, flat areas on the moon's surface formed from huge ancient lava flows


The largest part of the moon's shadow that surrounds the darkest part


The darkest part of the moon's shadow


A push or pull


A force that attracts all objects toward each other

Law of Universal Gravitation

The scientific law that states that every object in the universe attracts every other object


The amount of matter in an object


The force of gravity


The tendency of an object to resist a change in motion

Newton's First Law of Motion

The scientific law that states that an object at rest will stay at rest and an object in motion will staty in motion with a constant speed and direction unless acted on by a force

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions and try again


Reload the page to try again!


Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

Voice Recording