Stronger Eyes and Better Numbers

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Across
  1. 4. also known as the ocular lens; used to view the magnified object using a telescope.
  2. 5. power that specifies the quality detail a telescope can produce of an object being viewed.
  3. 6. reflecting telescopes use mirrors for their objectives.
  4. 7. refracting telescopes use lens for their objectives.
  5. 8. a figure that looks like a squashed circle. Planets orbit around the sun in an elliptical orbit.
Down
  1. 1. a large lens located at the front of a telescope.
  2. 2. the lens, which is used to view a magnified object using a telescope.
  3. 3. Newton’s law that explains the planets’ elliptical orbit. Based on Newton’s law, there is a gravitational force between every object. When there’s no force present, objects move in a straight line. The planets are always moving, and if there weren’t any force present, they would travel in a straight line. Therefore, the force of gravity is pulling them towards the sun, resulting in planets orbiting the sun.