Motions of the Earth

What is the movement of the Earth on its own axis called?

• Revolution
• Orbit
• Translation
• Rotation

How long does the Earth take to complete one rotation?

• 36 hours
• 24 hours
• 12 hours
• 48 hours

The movement of the Earth around the Sun is known as:

• Rotation
• Orbit
• Tilt
• Revolution

How many days does the Earth take to complete one revolution around the Sun?

• 365 days
• 365.25 days
• 400 days
• 360 days

What is the imaginary line that divides the Earth into day and night called?

• Circle of Illumination

• Equator
• Prime Meridian
• International Date Line

f the Earth stopped rotating, what would happen?

• e) The Earth would collapse under its own gravity
• f) Seasons would become irrelevant
• a) Continuous day on one side and continuous night on the other
• g) The atmosphere would be sucked into space

What is the angle of inclination of the Earth's axis with its orbital plane?

• 45 degrees
• 15 degrees
• 30 degrees

The extra six hours every year are adjusted by:

• e) Adding an extra hour every year
• f) Skipping a day every decade
• g) Adjusting the calendar every month
• c) Creating a leap year every four years

What is the number of days in a leap year?

• 360
• 365
• 400
• 366

On which date does the Summer Solstice occur?

• June 20th
• July 1st
• May 21st
• June 21st