Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
15 Cards in this Set
- Front
- Back
|
astronomy |
a study of things in space |
|
|
axis |
an imaginary line that passes through Earth's center |
|
|
calendar |
a document of days, weeks, months, and years |
|
|
equinox |
the two days of the year on which neither hemisphere is pointed towards or away from the sun |
|
|
force |
a push or pull exerted onto an object |
|
|
gravity |
the attractive force between objects |
|
|
inertia |
the tendency of an object to resist a change in motion |
|
|
law of universal gravitation |
the scientific law that states that every object in the universe attracts every other object |
|
|
mass |
the amount of matter in an object |
|
|
Newton's first law of motion |
the scientific law that states that an object at rest will stay at rest and a object in motion will stay in motion unless acted upon by a force |
|
|
orbit |
the path of an object as it revolves around another object |
|
|
revolution |
the movement of an object around another object |
|
|
rotation |
the spinning motion of a planet on its axis |
|
|
solstice |
the two days of the year on which the sun reaches its greatest distance north or south of the equator |
|
|
weight |
the force of gravity on an object |
