Term
|
Definition
| Gravity is a force of attraction between objects that is due to how big they are and the distance between them. |
|
|
Term
| What is the Law of universal Gravitation? |
|
Definition
| Every object in the universe pulls on every other object |
|
|
Term
| How does Mass effect the force of Gravity? |
|
Definition
| Objects with greater mass have a greater force of attraction than an object with less mass would have less gravitational force. |
|
|
Term
| How does distance affect the force of Gravity? |
|
Definition
| objects that are close together have a greater force of attraction than objects that are far apart |
|
|
Term
|
Definition
| is the weakest force in nature |
|
|
Term
|
Definition
| is the reason for the formation of planets, stars and galaxies |
|
|
Term
An orbit is...?
Give example: |
|
Definition
| the path that a body follows as it travels around another body in space Example: Moon orbits Earth |
|
|
Term
|
Definition
| when an object is farthest from the sun speed is slower |
|
|
Term
|
Definition
| when an object is closest to the sun. (Perry is your close friend)moves faster because gravity is stronger? |
|
|
Term
|
Definition
| placed the sun at one foci of an ellipse |
|
|
Term
|
Definition
| Each planet orbits the sun in a elipse with...the sun at one focus |
|
|
Term
| what is the inverse square law? |
|
Definition
| The equation to find gravity |
|
|
Term
| What is centripetal force? |
|
Definition
| the inward force that causes an object to move in a circular path |
|
|
Term
|
Definition
| When a cloud of dust and gas collapsed this cloud formed the solar system |
|
|
Term
|
Definition
| particles from the sun forming stuck together by Colliding and these larger sized bodies created/formed planets |
|
|
Term
|
Definition
|
|
Term
| Who is Kepler? and what are his laws? |
|
Definition
| Kepler discovered facts on the motions of the planets...Kepler's laws of planetary motion. aphelion and perihelion |
|
|
Term
| What is Kepler's second Law? |
|
Definition
| As a planet moves aound its orbit, it sweeps out equal areas in equal times. |
|
|
Term
|
Definition
| The square of the orbital period is proportional to the cube of the planet's average distance from the sun. |
|
|
