motions of the earth

When the Northern Hemisphere is pointing towards the sun, what season is the Southern Hemisphere?

• Winter

• Spring

• Fall

The apparent rising and setting of the sun as seen from the Earth are caused by the _________

• Rotation of the Sun

• Revolution of the sun

• Rotation of the Earth

What is an equinox?

• When the sun is directly above Earth's equator

• When the moon is directly about the Earth's equator

• When the sun is directly below the earth's equator

During precession, the Earth wobbles a little. This DOES change the angle of the axis.

• Nutation
• Precession
• Barycenter
• Revolution

Slow, circular movement at the top of Earth's axis

• precession
• barycenter
• revolution

A wobble back and forth

• Rotation
• Nutation
• Revolution

The center of mass of an object

• Angle of Insolation
• Barycenter
• Equinox

Which term describes the time it takes for Earth to complete one circle around the sun.

• Rotation
• Revolution
• Kepler's 1st Law
• Barycenter

Earth's orbit follows an elliptical path.

• Kepler's 1st law
• Kepler's 2nd law
• Kepler's 3rd law
• Nutation

When Earth orbits around the sun, it slows down when it is close to the sun. It speeds up its orbit when it is further from the sun. This is because the sun's gravity is stronger when you are closer to it.

• Kepler's 1st law
• Kepler's 2nd law
• Kepler's 3rd law
• Nutation