Regents Earth Science - Earth Motions

In the Geocentric Model all celestial objects revolve around the (Sun, Earth) in (ellipses, circles).

• Sun, ellipses

• Earth, circles

• Sun, circles

• Earth, ellipses

In the Heliocentric model planets move in (ellipses, circles) as they revolve around the (Sun, Earth).

• Sun, ellipses

• Earth, circles

• Sun, circles

• Earth, ellipses

Moving around another celestial object (rotating, revolving).

• rotating

• revolving

Kepler’s 1^st Law of Planetary Motion – Planets move in _______.

• circles

• ellipses

Kepler’s 2^nd Law of Planetary Motion – Planets sweep out equal ____ in equal ___.

• areas, time

• volume, time

• density, gravity

Kepler’s 3^rd Law of Planetary Motion – As the distance from the Sun increases, period of revolution (increases, decreases, stays the same).

• increases

• decreases

• stays the same

As mass increases, gravitational pull (increases, decreases, stays the same).

• increases

• decreases

• stays the same

As distance increases, gravitational pull (increases, decreases, stays the same).

• increases

• decreases

• stays the same

If mass is doubled, then gravitational pull is (doubled, tripled, quadrupled).

• doubled

• tripled

• quadrupled

If distance is doubled, then gravitational pull is (same, one half, one quarter).

• same

• one half

• one quarter