Which presents a system with elliptical orbit?

• Copernican

• Keplerian

• Ptolemaic

• Tychonic

Which states that a planet moves fastest when it is nearest to the sun?

• Copernican

• Keplerian

• Ptolemaic

• Tychonic

Which of the following claims that the planets moved in a complicated system of circles?

• Copernican

• Keplerian

• Ptolemaic

• Tychonic

Which has a bulging equator and squeezed poles and said to be the shape of the earth?

• oblate circle

• sphere

• Oblate spheroid

• circle

Which explains the difference in the orbital period of Earth and Saturn?

• All planets revolve around the sun in an elliptical orbit.

• Any point in the closed curved is equidistant to the two foci.

• Planets move fastest in the elliptical orbit when nearest to the sun.

• The length of a planet's revolution in the Sun is proportional to its orbit's

Which of the following is a diurnal motion?

• Moonrise

• Eastward rise of moon

• Sunset

• equinox

Which BEST explains why the Earth is not disk-shaped?

• Stars are viewed differently when traveling north and south.

• The shadow cast by the Earth during a lunar eclipse is circular.

• The shadows cast in two different cities during a solstice differed in length.

• The only shape that cast a circular shadow in whatever direction is a sphere.

Who is a greek philosopher who computed the circumference of the Earth and gave most accurate size during their time?

• Copernicus

• Kepler

• Ptolemy

• Eratosthenes

According to the ancient classification system, which element would a flowing river be categorized under?

• Earth

• Water

• Air

• Fire

Which aided Eratosthenes in measuring the Earth's circumference?

• The appearance of stars differs as when traveling north and south.

• The shadows cast within the Syene and Alexandria during the solstice.

• The sphere is the only shape that casts a circular shadow in whatever direction.

• The shadow casts by the Earth during a lunar eclipse is circular