Which describes the precession of the...

Question 1 / 2707066636ee928f7522a1c519561

Question 1 of 2707066636ee928f7522a1c519561

Which describes the precession of the equinoxes of the Earth?

Question 1 of 27070

Which describes the precession of the equinoxes of the Earth?

🔍 Key Concepts

• Earth’s axis vs. Earth’s orbit – which one is changing for precession of the equinoxes? • How a spinning top behaves when its axis is tilted and it slowly wobbles • Difference between changes in rotation speed/orbit shape and changes in direction of the axis

💭 Think About

• Ask yourself: does precession of the equinoxes refer to how fast Earth spins, the path it follows around the Sun, or the direction in which its axis points in space? • Think about why the position of the equinoxes on the celestial sphere slowly shifts over many years – what kind of motion of Earth would cause that? • Compare each option: which one clearly describes a slow, wobbling change in the orientation of Earth’s axis rather than its speed or orbital path?

✅ Before You Answer

• Eliminate any option that talks mainly about changes in speed or period of rotation, rather than direction of the axis. • Eliminate options that describe changes in the shape of the orbit instead of how the axis is pointing. • Look for the choice that best matches the image of a tilted spinning top slowly wobbling as it rotates.

Question 1 of 27070

Which describes the precession of the equinoxes of the Earth?

The the irregularity of the Earth's orbit caused by influences of the Sun and Moon

The the gradual increase in the period of rotation caused by the effects of the Moon

The motion that is similar to a top spinning with its axis tilted

The motion caused by the elliptical shape of the Earth's orbit

Question 1 / 2707066636ee928f7522a1c519561

Question 1 of 2707066636ee928f7522a1c519561

Which describes the precession of the equinoxes of the Earth?

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Question 1 of 27070

Which describes the precession of the equinoxes of the Earth?