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Astronomy Review Questions
1) The length of an Earth day is determined by the time required for approximately one
  1. Earth rotation
  2. Earth revolution
  3. Sun rotation
  4. Sun revolution

Correct Answer Number: 1


2) What is the basic difference between ultraviolet, visible, and infrared radiation?

  1. half-life
  2. temperature
  3. wavelength
  4. wave velocity

Correct Answer Number: 3


3) The apparent daily path of the Sun changes with the seasons because

  1. Earth's axis is tilted
  2. Earth's distance from the Sun changes
  3. the Sun revolves
  4. the Sun rotates

Correct Answer Number: 1


4) At which two positions of the Moon is an eclipse of the Sun or Moon possible?

  1. 1 and 5
  2. 2 and 6
  3. 3 and 7
  4. 4 and 8

Correct Answer Number: 1


5) Energy is transferred from the Sun to Earth mainly by

  1. molecular collisions
  2. density currents
  3. electromagnetic waves
  4. red shifts

Correct Answer Number: 3