Moon, Sun and Earth

How long would it take the Earth to complete four orbits around the Sun?

• A 1461 days

• 1460 days

• 366 days

• 365 days

Which statement describes the motion of the Earth as related to the Sun?

• The Sun rotates around the Earth.

• The Sun revolves around the Earth.

• The Earth rotates around the Sun.

• The Earth revolves around the Sun

Why is it necessary to add a day to the calendar every four years?

• The rotation of the Earth is actually 24 hours and 6 seconds.

• The revolution of the Earth is actually 365.25 days not 365 days.

• The Earth's orbit is elliptical and not circular.

• The Earth's axis is tilted and slows its rotation.

What causes the apparent rising and setting of the Sun as seen from Earth?

• rotation of the Sun

• revolution of the Sun

• rotation of the Earth

• revolution of the Earth

Approximately how many degrees does the Earth rotate on its axis in 2 hours?

• 15°

• 30°

• 60°

• 90°

What would happen if the Earth's rate of rotation were to decrease?

• The day would get longer.

• The year would get longer.

• The day would get shorter.

• The year would get shorter.

The diagram shows the Earth as viewed looking down on the North Pole (NP). Points A and B are locations on the Earth's surface. At location A, the time is 12 noon. What time is it at location B?

• 6 a.m.

• 3 p.m.

• 6 p.m.

• 12 midnight

f the last full moon was on May 1, when will the full moon be seen again?

• May 29

• May 27

• May 15

• May 8

Examine the diagram of the Earth. What motion is represented by the diagram?

• gravity

• inertia

• revolution

• rotation

If a new moon occurs on September 1, when will the next full moon be?

• September 2

• September 8

• September 15

• September 29