U7L1-2 Vocab Flashcardizz: Movement in Space & Earth's Movement

Front

Axis

Back

An imaginary line that passes through a planet's center and its north and south poles, about which the planet rotates.

Front

Constellation

Back

A pattern or grouping of stars that suggest the outline of a figure or object.

Front

Heliocentric

Back

A model of the universe in which Earth and the other planets revolve around the sun.

Front

Satellite

Back

An object that orbits a planet.

Front

Solstice

Back

Either of the two days of the year on which the sun reaches its greatest distance north or south of the equator.

Front

Rotation

Back

The action of rotating around an axis; for Earth, it takes approximately 24 hours to complete one rotation.

Front

Revolution

Back

The movement of one object around another; for Earth, it takes about 365.25 days to complete one revolution around the sun.

Front

Orbit

Back

The curved path of an object in space as it revolves around another object due to gravitational forces.

Front

Geocentric

Back

A model of the universe where Earth is at the center and all other celestial bodies revolve around it.

Front

Ellipse

Back

An elongated circle, or oval shape, which describes the orbit of planets around the sun.