Astronomy 3. practice

The spinning of an object around its axis is called a(n) _______________________.

The movement of one object around another is called a(n) ________________________.

The Earth revolves around the Sun every

• 60 seconds

• 24 hours

• 1 month

• 1 year

The Earth rotates once every

• 60 seconds

• 24 hours

• 1 month

• 1 year

The Earth’s rotation causes the seasons.

• true

• false

What is an equinox?

• When the daylight hours are more than night hours on Earth.

• When both hemispheres receive similar amounts of daylight.

• When the daylight hours are less than the night hours on Earth.

• In the Winter and Summer of both hemispheres.

What is at the middle of a Heliocentric system?

• Mars

• Moon

• Sun

• Earth

What is at the middle of a Geocentric system?

• Sun

• Neptune

• Earth

• The Universe

What orbits around the center of a Heliocentric system?

• All objects in the Solar System but the Sun.

• The Milky-way.

• The universe.

• Sirius, Canopus, Arcturus, Alpha, Centauri, and Procyon.

Which scientist used a telescope to find evidence to support their claim about the heliocentric model?

• A. Johannes Kepler

• B. Claudius Ptolemaeus

• C. Galileo Galilei

• D. Nicolaus Copernicus