P7 OCR 21st Century Science

A couple of questions from each topic to test your knowledge!

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  • Created by: Sarah
  • Created on: 29-05-12 21:51

1. A solar day is....

  • a day of constant Sun
  • the time from noon on one day, to noon on the next
  • the time it takes for the Earth to rotate 360 degrees on its axis
  • a day of constant darkness
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Other questions in this quiz

2. A star with a positive declination will be visible from the...

  • Southern Hemisphere
  • The Sun
  • The Moon
  • Northern Hemisphere
  • The Equator

3. The Moon appears to travel east-west across the sky in...

  • 24 hours 49 minutes
  • 24 hours
  • 23 hours 56 minutes
  • 12 hours 30 minutes

4. A total solar eclipse occurs when the...

  • Moon is directly in front of the Sun
  • Moon passes between the Earth and the Sun
  • Earth is between the Sun and the Moon

5. The principal axis is...

  • The line that passes through the middle of the lens
  • Another name for a strong lens
  • A ray of light that converges at the focal point
  • A line on a graph
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