astronomy- rotation and revolution

What is the time taken by the Earth to complete one full rotation on its axis? a) 24 hours

• 24 HOURS

• 12 HOURS

• 36 HOURS

• 48 HOURS

The imaginary line around which the Earth rotates is called the:

• a) Equator

• b) Tropic of Cancer

• c) Prime Meridian

• d)Antartic circle

What causes day and night on Earth?

• a) Earth's tilt on its axis
  

• b) Earth's elliptical orbit
  

• c) Earth's magnetic field
  

• d) Earth's rotation

  
  

What is the angle of tilt of the Earth's axis from the perpendicular to its orbital plane?

• a) 23.5 degrees
  

• b) 45 degrees
  

• c) 90 degrees
  

• d) 180 degrees

  
  

The phenomenon responsible for the change in the position of the North Star (Polaris) over long periods of time is called:

• a) Precession
  

• b) Nutation
  

• c) Aberration
  

• d) Parallax

  
  

Which of the following terms refers to the Earth's elliptical path around the Sun?

• a) Rotation
  

• b) Revolution
  

• c) Tilt
  

• d) Solstice

  
  

During which event do both hemispheres of the Earth receive nearly equal amounts of sunlight and experience almost equal day and night lengths?

• a) Equinox
  

• b) Solstice
  

• c) Lunar Eclipse
  

• d) Solar Eclipse

  
  

The longest day of the year in the Northern Hemisphere occurs during which solstice?

• a) Winter Solstice
  

• b) Spring Equinox
  

• c) Summer Solstice
  

• d) Autumn Equinox

  
  

Which of the following factors is responsible for the changing seasons on Earth?

• a) Earth's tilt and revolution
  

• b) Earth's magnetic field
  

• c) Earth's rotation speed
  

• d) Earth's distance from the Moon

  
  

The phenomenon where the Earth's axis is slightly wobbling over a period of about 18.6 years is known as:

• Axian tilt

• Nutation

• Solar flares

• Lunar phase