Unit 4 LS2 Vocabulay Kepler's Laws

Orbit

• the path an object takes around another object

• the time it takes for a planet to go around another object

• the time it takes for an object to spin once on its axis

• the force of attraction between two objects that is a function of the masses

Period of Revolution

• the path an object takes around another object

• the time it takes for a planet to go around another object

• the time it takes for an object to spin once on its axis

• the force of attraction between two objects that is a function of the masses

Period of Rotation

• the path an object takes around another object

• the time it takes for a planet to go around another object

• the time it takes for an object to spin once on its axis

• the force of attraction between two objects that is a function of the masses

Gravity

• the force of attraction between objects that is a function of their magnetism

• the force between objects that pushes them apart

• the force that holds an atoms nucleus together

• the force of attraction between two objects that is a function of the masses

ellipse

• the shape of an object's orbit around another object.

• the path of an object's orbit around another object

• the center points of an oval

• the length of the longest line across an oval

Astronomical Unit

• the distance bwtween the sun and the nearest star (alpha centauri)

• the distance between Earth and the sun

• the distance between the moon and Earth

• the time it takes for light from the sun to reach Earth

Eccentricity

• The degree of roundness of a planet's orbit

• how far a planet travels away from the sun

• how fast a planet moves through space

• the shape of a planets orbit around the sun

Kepler's First law of motion

• the shape of a planet's orbit around the sun is an ellipse with the sun at one of the foci

• the law that states that for any area in an object’s orbit for the SAME length of time, the areas MUST be equal.

• the law that states that the time it takes for an object to orbit another object is proportional to the distance between the two objects

• the law that states that gravity holds all objects in orbit around the sun

Kepler's Second law of motion

• the shape of a planet's orbit around the sun is an ellipse with the sun at one of the foci

• the law that states that a planet speeds up as it nears the sun and slows down when it is further away.

• the law that states that the time it takes for an object to orbit another object is proportional to the distance between the two objects

• the law that states that gravity holds all objects in orbit around the sun

Kepler's Third law of motion

• the shape of a planet's orbit around the sun is an ellipse with the sun at one of the foci

• the law that states that a planet speeds up as it nears the sun and slows down when it is further away.

• the law that states that the time it takes for an object to orbit another object is proportional to the distance between the two objects

• the law that states that gravity holds all objects in orbit around the sun