Term
|
Definition
| time it takes for Earth to orbit the sun once-365.242 days |
|
|
Term
|
Definition
| time for the moon to orbit Earth once |
|
|
Term
|
Definition
| time for Earth to rotate once on its axis |
|
|
Term
|
Definition
| an object spinning on its axis(causes night and day) 24 hours |
|
|
Term
|
Definition
| one object moving around another object |
|
|
Term
|
Definition
| the path one takes as it goes around another object |
|
|
Term
|
Definition
| two days of the year when the sun reaches its greatest distance from the North/South Pole |
|
|
Term
|
Definition
| halfway between the solstices(vernal and autumnal) |
|
|
Term
|
Definition
|
|
Term
|
Definition
| a push/pull by an outside force on another object |
|
|
Term
|
Definition
| tendency of an object to resist change in motion |
|
|
Term
|
Definition
| the amount of matter in an object |
|
|
Term
|
Definition
| the effect of gravity on mass |
|
|
Term
| Newton's first law of motion |
|
Definition
| an object at rest will stay at rest until acted upon by an outside force. an object in motion will stay in motion at a constant speed and direction(velocity) until acted on by an outside force. |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
| the side of the moon that is always facing us |
|
|
Term
|
Definition
| the side of the moon we never see b/c of the fact that the moons speed of rotation and revolution are the same. |
|
|
Term
|
Definition
| the sunlit part of the moon is getting larger |
|
|
Term
|
Definition
| the sunlit part of the moon is getting smaller |
|
|
Term
|
Definition
| sunlight on less than half of the surface we see |
|
|
Term
|
Definition
| sunlight on more than one half of the surface of the moon we see |
|
|
Term
|
Definition
| occurs when the shadow of one celestial body falls on another celstial body |
|
|
Term
|
Definition
| shadow of the earth falls on the moon |
|
|
Term
|
Definition
| all the bright light from the sun is blocked out |
|
|
Term
|
Definition
| shadow doesnt completely cover the sun. part of the sun is still visible from Earth. |
|
|
Term
|
Definition
| darkest part of shadow(like night) |
|
|
Term
|
Definition
| larger part of shadow(dusk) |
|
|
Term
|
Definition
| the moon's shadow doesnt completely cover up the sun a little bit of the sun is showing all the way around. |
|
|
Term
|
Definition
| the difference in how much the moon's gravity pulls on diff. parts of Earth's water |
|
|
Term
|
Definition
| two high tides and two low tides a day |
|
|
Term
|
Definition
| the greatest difference in high and low tides |
|
|
Term
|
Definition
| the smallest difference in tides(water level doesnt change much) |
|
|
Term
|
Definition
| having only one high and one low tide a day |
|
|
Term
|
Definition
| means "sea" in Latin. Galileo named this b/c he saw dark spots on the moon and thought they were oceans. |
|
|
Term
|
Definition
| a crack in a planet's/moon's crust where molten lava comes up onto the surface |
|
|
Term
|
Definition
| chunks of interplanetary debris in space |
|
|
Term
|
Definition
| large round pits formed by impacting meteoroids |
|
|
